I thought I got a defective pair, so I did a warranty exchange. The most obvious sign of a transmission cooling line leak is the presence of transmission fluid. What happens if oil cooler fails? I've tried to reseat the fitting, but it still slowly drips out between the pipe and the fitting. Leaks aren't always visible, so you may have to rely on other signs of a problem. Bubbles in the radiator or in the coolant overflow tank indicate that combustion gases are being forced into the cooling system. If this is so it will mean a replacement radiator/oil cooler … Is this because there is no forces pushing fluid around? As for replacing the lines i have not replaced the oil cooler lines i have replaced trans cooler lines on a 5.3 not a 6.0 an it sucked. The 2 lines on the driver side are to the oil cooler the 2 on the passenger side are from the trans and also split off to the trans cooler (if equipped) coolant does not run through any of the lines, a coolant leak will develop at either the trans or oil cooler line fittings on the radiator from the internal cooler resulting in needing a new radiator My question is, is there a "seal" on the inside of the oil cooler, that when it is tightened down won't leak? 06-29-15 01:37 PM - Post# 2558294 Alright, so I've got a 1998 Chevrolet Silverado LS Z71 K1500. A leaking water pump is a more difficult replacement, particularly on vehicles that use the timing belt to drive the water pump. The only thing that should leak from the line is trans fluid. It circulates the hot fluid away to the radiator via cooler lines and returns the cooled fluid back to the transmission. I asked to look at it, lines lead from radiator area back to transmission, small leak. If the engine is too hot, fuel may combust on compression instead of spark, detonation, which can cause severe engine damage. Anyone to avoid? wjburken likes this. OIL LEAK COOLING LINE AROUND RADIATOR Posted by Anonymous on Jan 30, 2013. Engine coolant leaking from oil cooler. A mechanic replaced > the fitting and line claiming the the line had a pinhole in it but it > is still leaking. Do I need to drain the radiator and any special surprises? To cool the transmission fluid, a pump circulates it through a length of steel tubing connected to the car’s radiator. Within the adapter is a gasket or rubber o-ring. Im 99% sure its an engine oil cooler line (not transmission cooler). (adsbygoogle = window.adsbygoogle || []).push({}); Think you'll need a new rad. Hope this helps! Benjamin Jerew is an ASE-certified Master Automobile Technician with over a decade of experience in auto repair, maintenance, and diagnosis. Locate the radiator and check where the coolant lines are attached. Oil is fine, right on the line, oil fill cap is clean. Comment; Flag; More. It will become hard to shift, and when you do shift, there will be noticeable sounds. If you are talking about the fitting in the radiator, do not try to tighten. 11-02-2008, 07:17 PM. A worn, weak, or leaking radiator cap will not hold pressure, lowering the boiling point and allowing coolant to boil out. Excessive heat can also deform the engine, permanently damaging it. There was a drop forming on the line and it … Leaking Transmisson or Cooler Lines? They told me that they can't look they just want to charge me $932 to replace the lines. Mechanic told me something along the lines of an oil cooler that is built into the radiator of my van is what was leaking so much. Oil can get into your cooling system ( radiator ) ( reservoir ) via your oil cooler ( system ). From your description, "... oil flooding out..." it would appear that your oil cooler has burst/split, and is pumping transmission oil out onto the floor. A blown head gasket typically affects the engine’s performance. 02-10-05 05:41 AM - Post# 623156 On 88-95 5.7 liter motors with oil coolers (mine is a 94 C1500- 2wd) There are two oil cooler lines that run from either the radiator (like mine), or an external cooler mounted in front of the radiator, to an aluminum housing situated between the oil … I'd also suggest replacing the hoses, t-stat as well since you've got it all apart and easy to access. I ordered a Spectra Premium CU2370 radiator (w/oil & trans cooler) from Amazon (~$120/shipped) as I needed the radiator quickly didn't want it to arrive after Christmas. Chances are, you'll have to pull the catalytic converter to track it down. The parts stores all come up with 2 part numbers, if I recall correctly they were Dorman P/N 800-607 & 800-622. A little bit of investigation revealed that the washers on the banjo bolt that secure the oil cooler line to the top fitting on the radiator had gone bad. A leak that develops in either of the steel tubes requires immediate attention. I believe the transmission line is on the passenger sides and the oil cooler line is on the drivers side. Cooler lines are NOT covered unless under 36,000 miles. And that fixed the problem. Tricks? OIL LEAK AROUND OIL COOLER LINE GO TO RADIATOR 2002 CHEVY SILVERADO. Where the two lines enter the transmission they are connected together with a bolt holding them in. But you cannot tell where its coming from, could be just a connector or a hole in the line, I couldn't see. Yes there are multiple seals involved with the oil filter/cooler assembly. Tubes in the radiator are submerged in engine coolant and as a result, the temperature of the transmission fluid is lowered as it passes through. Re: Oil cooler line leak. I did not find any florescent color around the oil pan just around that thermal switch, and only after about a week of checking. Oil was also dripping on the drive belt and being spewed all along the belt path. What's the Difference Between Antifreeze and Coolant? Just noticed the same problem with my '98. What Are the Common Symptoms of A Leaking Transmission Cooler Line? A blown head gasket typically affects the engine’s performance. So he charged me to replace my entire radiator. Coolant leaks are a precursor to a major engine problem, and fixing them should be high-priority. If the engine is too cold, fuel doesn’t vaporize as easily, leading to poor performance and increased fuel consumption. When coolant leaks, air will take its place. tbruz. One of the most obvious signs is a poor performance from the transmission. Feb 20 2014, 1:02am. I'd suggest removing the fan assembly to give you more room and one of those big flat drip pans to catch all any leftover coolant and tranny fluid. Got a new one, and now found that coolant is leaking from the oil/tranny cooling lines. The only tool you's need is a 10mm socket wrench, and a $2 replacement O-ring. One of the oil lines are leaking, if you know which one that's have the battle. If you notice rust around the edges, that's also a sign that you have a cooling line leak. If the temperature gauge is heading toward the red zone or you see a temperature warning light, you may have a coolant leak, even if you can’t see it. The addition of glycols extends the liquid temperature range of water, preventing freezing and boiling at extreme temperatures. Why? However, damage, wear, corrosion, and other problems can easily cause coolant leaks. It's got about 370,000km (231,000 miles) and I did an engine and transmission swap last year. If you are leaking coolant from the line itself then you have coolant in your trans fluid. Any one have a good source for the rad? Discuss Oil cooler line leaking at radiator in the alt.trucks.chevy forum at Car Dealer Forums; Arjay, ... > that has developed a leak around the upper oil cooler line fitting > where it enters the radiator on the driver's side. telltale red, pink, green, or blue puddle. Those engine cooler lines always leak. 2009 Silverado hd tow package. I keep reading to go with AC Delco/OEM. If the oil cooler starts to leak or is cracked, the engine will still perform normally. You can try all kinds of band aids but the real and definite fix is replacing it. Embedded in your cooling system radiator is a transmission oil cooler, it comes as part of the radiator. As soon as the transmission cooler line … The upper oil cooler line connector at the radiator has been leaking very slightly for a while, I need to replace it, and can't find the correct fitting at any of the parts stores. Post: 98 K1500, Oil Cooler Line- Leaking at Radiator (Topic#326086) MadDog843 Forum Newbie Posts: 74 Loc: Canada Reg: 01-12-10. If the oil cooler adapter fails externally, engine oil may be forced out of the engine. Because air is compressible, the boiling point will lower, allowing some of the coolant to flash into steam. Be sure to use a quality hose, new hose clamps, and clean the sealing surfaces before installation. 5 Related Answers Anonymous . Looking at the front of the motor, the 2 lines on your left that go to the cooler in front of the radiator are the transmission cooler lines. If you use a stop-leak product, you will also need a coolant flush to remove excess stop-leak. There are a few ways to tell if your transmission cooler line is leaking just from inspecting it on your own before taking it to see a mechanic. If you check that and everything is fine, then you should check the oil cooler. Definitely doable. A 30/70 blend goes even further, dropping the freezing point to -67 °F (-55 °C) and raising the boiling point to 235 °F (113 °C). Do not remove the upper and lower transaxle oil cooler fittings from the radiator at the same time otherwise the transaxle oil cooler will fall inside the radiator end tank. No more leaks from that location on the 2000+ mile round trip. Engine coolant is mostly water and ethylene glycol or propylene glycol, with several additives, such as rust inhibitors, lubricants, and dyes. Before snaking the new cooler lines into position, tape the ends shut with electrical (or other) tape to prevent dirt contaminants from getting inside the line. Stop-leak products are meant for hairline imperfections and minuscule cracks, not the kind of leaks that result in a puddle beneath your vehicle or a coolant smell permeating your car. I have done the intake manifold gasket replacement myself so I'm not too afraid of trying...just what kind of special tools may be needed? A failing Oil Cooler: If the oil cooler leaks, the main symptom is oil in the coolant. you need a new head gasket..vs it;s your oil cooler… that will be 140 total sir / mam ! 247,000 miles. About the auto trans cooler lines, I would assume thats what they are.. The front seal and bearing are susceptible to wear, and replacement may take a few hours. Is it coming out around the tube or the threads? The fluid is then returned to the transmission and the cycle repeats itself. Here are some of the most common ways causes of a coolant leak and how to fix them. You do not have the required permissions to view the files attached to this post. HA HA i laughed at them. I replaced the drive belt as a precaution. If the fitting is leaking at the radiator then you need a radiator. Similar to a loss of oil, an external oil cooler failure may force all of the engine coolant out of the engine. So, as soon as the transmission cooler lines at the radiator of your car are starting to leak, you should immediately take necessary steps to prevent a further issue from arising. By using LiveAbout, you accept our, How to Prevent Your Classic Car From Overheating. But it may be a while before I get to it. Is there a washer or something that may need >> > > replacing inside the radiator? Edited March 9, 2016 by 1500fp 1. 3. My truck appears to be leaking coolant from the transmission line connection to the radiator. Print this page ; Share this page × Ad. It looks like there are two high pressure oil cooler lines that thread into this side of the radiator just under the top radiator hose. If you want to have this repaired, consider YourMechanic, as a certified … Sorry to hi-jack the post. To enable cooling, the ATF is pumped from the transmission to the car's front. Once it’s regulated, your motor oil flows back out and goes through the rest of the engine, while coolant … Pics? I just replaced the oil cooler seals and the oil filter housing gasket because oil was leaking from one (or more) of those seals. Truck is an HD 2500, 6.0, 4x4, crew cab. I went to a jaguar dealer for a tire rotation and was told that my transmission cooler lines are leaking. 2. You know it. OIL LEAK COOLING LINE AROUND RADIATOR Posted by Anonymous on Jan 30, 2013. It is leaking between the metal flange and the pipe at the compression fitting. There are 2 lines going to the radiator on the passenger side, one connects on the top side and one of the bottom of radiator. A mechanic replaced > the fitting and line claiming the the line had a pinhole in it but it > is still leaking. Hi there. If you see a puddle on the ground or smell coolant in the car, you've discovered a serious sign of a coolant leak that needs to be repaired before it causes serious damage to your engine. The typical 50/50 water/coolant blend drops the freezing point to -35 °F (-37 °C) and raises the boiling point to 223 °F (106 °C). Was there another option? Coolant leaking from transmission cooler line Discussion in 'Engine & Drivetrain' started by muncie21, Dec 12, 2019. If the clip is not installed exactly how it should then the line will continue to pop off. Leaking oil around the lines The next thing that you may notice when it is time to replace your oil cooler line is oil leaking around the fittings of the hose. In both cases, the result is an overheated transmission that may stop functioning if the condition persists. All of the pulleys needed cleaned. Had the lines replaced, still leaking. Air and steam are great insulators and will prevent the cooling system from expelling excess heat. Those are plastic endcaps, not like the old brass ones where you could just replace the top tank. 475 Posts #2 • May 24, 2015. Some call it anti-freeze, but that’s just a side-effect of engine coolant’s function. While replacing those look at the oil filter adapter thats probably leaking as well . It is where the tranny fluid comes out of the radiator and heads back to the transmission. This is a sign of a coolant leak, but might also be caused by cracks in the engine, head, or head gasket. The special release tools for the Jiffy tite connectors are a must for this job,the 3/8 release tool for the transmission lines and the 1/2 release tool for the oil lines.The special release tools for the jiffy tite connectors are not cheap,I paid $28.00 for the 3/8 release tool from my Cornwell dealer and the 1/2 release tool is $30.00 which I ended up buying the rest of the kit from my Cornwell dealer. A new engine is usually able to maintain its coolant in the radiator, hoses, and coolant passages. I have just a bit of weeping at the crimp connection and possibly at the end next to the filter as well. Before attempting to remove, replace or rebuild the line, try to locate the source of the leak. A loss of fluid leading to an overheated transmission can be devastating as the system loses its ability to cool. It is leaking coolant not oil. The oil leak was significant and causing a mess around the drivers side front of the engine. When an oil cooler fails, it can force all the coolant out of the engine and raise the risk of an overheated engine, which may lead to possible engine damage. It's a plastic tank by the way. Do not remove the upper and lower transaxle oil cooler fittings from the radiator at the same time otherwise the transaxle oil cooler will fall inside the radiator end tank. Taste the leak to see if it's sweet. Coolant leak around radiator high pressure oil lines. Just wait for the engine to cool, refill the cooling system, and install a new radiator cap. Luckily, this is a quick and cheap fix. Bubbles in the radiator or in the coolant overflow tank indicate that combustion gases are being forced into the cooling system. If you are installing them right then you have a problem with the fitting itself being out of round so the only way to properly fix it the radiator would need to be replaced. Transmission cooler line leak symptoms . You will likely crack the radiator. So cant say what the best way is I have replaced my radiator then I replaced the oil cooler lines the bottom one leaked so I bought another set then both top and bottom leaked so I bought a GM set and the bottom one leaks and the top on seeps oil should I get another new radiator please help . How to Fix Radiator Line Leak in a Transmission by Max Stout . I have a coolant leak on the drivers side end cap of the radiator. This fall, a pan on the ground caught coolant. A mechanic replaced >> > > the fitting and line claiming the the line had a pinhole in it but it >> > > is still leaking. Comment; Flag; More. Want Answer 0. Under pressure, coolant may be forced into the cylinder, flashing to steam every time the cylinder fires. Went thru this about 3 months ago with the dealer, not covered 37,000 miles. If the coolant leak is caused by a radiator leak, you'll want to repair your radiator. My car has an automatic transmission. 3. I have seen some discolored spots over there. The adapter connects oil lines to the cooler itself and another adapter sends "cooled" oil back into the oil pan. What is it and how is it to change out? I still have the lines sitting in my garage taking up space. The oil will run at ambient temp and not at 95 degrees c or hotter and the radiator is not having the load of trying to cool really hot oil. Transmission cooling lines leaking means either low-level of fluid or interrupted flow in the transmission. While changing oil tonight I noticed that there appears to be a light leak coming from one of the hoses between the radiator and the engine. If the block is cracked or the cylinder head is warped, your engine needs to be taken to an auto professional for major repairs. The 2 lines on the right (drivers side) are the engine oil cooler lines. User Info. I believe there are hex fittings that screw into the rad...flat metal pieces with small hex flats that the tranny oil lines screw into. The radiator has a transmission and engine oil cooler lines to it too. Come to find out, the lines themselves aren't leaking, but from where the line goes to the top of the radiator is squirting out oil. Unscrew an oil cooler line from the radiator using the line wrench. Over-tightening can also cause damage to the oil cooler inside the radiator tank where a leak will lead to mixing of oil and coolant. 2. Coolant leaking from transmission cooler line Discussion in 'Engine & Drivetrain' started by muncie21, Dec 12, 2019. Send Private Topic View Profile . Both lower mileage … Over time, rubber radiator hoses and heater hoses may weaken. Looks like the bottom one is leaking, which line is that for trans or engine oil? What is the Shelf Life of Radiator Coolant or Antifreeze? As in radiator coolers are prone to failure before you invest in a new radiator , consider buying an air to air oil cooler to cool the transmission oil . I have taken the oil cooler line out, unscrewed the "ring" that holds the internal oil cooler in place. https://www.yourmechanic.com/article/symptoms-of-a-bad-or-failing-oil-cooler There is a special way to install these by rotating them to ensure that they lock in place. What's the Difference? Many individuals will think the head gasket is blown. Is replacing the radiator a doable job at home? Can this even leak to begin with? ATF cooler oil leak - rusted lines I had the same problem on my 2012 Forester X Premium, and the leak was at the front (behind the radiator) where the hose meets the trans line (as shown in the diagram in this thread). They connect at the right side of the radiator and then go down to just above the oil filter. Mar 09 2019, 2:08am. A sweet leak is antifreeze. I scrounged around in my stash and found some suitable temporary sealing washers. The heavy additive and media load in stop-leak can effectively seal tiny imperfections, perhaps even creating a soft “weld” to prevent coolant leaks, but they are not a replacement for necessary repairs. As oil runs through the cooler, heat is transferred (exchanged) from the hot motor oil to the adjacent pathways containing coolant, regulating the temperature of your engine oil. I ordered a Spectra Premium CU2370 radiator (w/oil & trans cooler) from Amazon (~$120/shipped) as I needed the radiator quickly didn't want it to arrive after Christmas. 97 tahoe with 225k miles. Replace the radiator! On its own, water would freeze at 32 °F (0 °C) and boil at 212 °F (100 °C), making it unsuitable as an engine coolant. This is a sign of a coolant leak, but might also be caused by cracks in the engine, head, or head gasket. Because the radiator is exposed, there are a few different ways it can fail, including corrosion, debris damage, and even minor impact. On passenger side near the radiator I have the bottom line leaking. This is what is leaking. I bought the oil cooler lines too but never got around to doing them before I sold the truck. I agree,a new radatior and transmission line fittings are a jiffy tite fitting which have a huge advantage over flare nut fittings: do not leak and much easier to remove.There is a special release tool to get the line off,the 3/8 relase tool,same with the eingine oil lines too (if it has those) which have jiffy tite fittings.The engine oil lines use the 1/2 release tool.All you do is pop off the plastic cover just enough,put the tool in making it is fully seated and turn 60 degrees which the line will come off.GM started using the jiffy tite fittings in 1996 and I like them because they do not leak and take less time to remove with the special tool. You need to address why there is antifreeze in there first like a problem inside the radiator. Clicking this will make more experts see the question and we will remind you when it gets answered. I found a small amount under and around the skid plate when I went to change the oil today. If you suspect you may have a coolant leak, look for these symptoms. Not oil, but coolant is leaking from behind them where the metal fittings meets the plastic. I'd also check to make sure the coolant and transmission fluid didn't mix together...oily sheen on the surface when you open the rad cap. Want Answer 0. Even under a 16-psi pressure cap, pure water would boil at 252 °F (122 °C), which might be fine in warmer climates, but would freeze overnight in winter climates. If the engine is leaking coolant, then it is either from the coolant lines that go to the oil cooler or from somewhere else in the cooling system. Sometimes, it is difficult to spot the leak at the initial stage. The manual says "(3) On automatic transmission models disconnect the oil cooler hoses from the lower radiator tank".. hahahahaha So you guys are saying that it won't leak much fluid? Coolant lines to the turbo bearing housing are also likely leak candidates. A small type of radiator, the transmission cooler is full of hot ATF or Automatic Transmission Fluid. Permalink | Reply. Oil cooler lines will usually leak oil, as oil is what flows through those lines. Marv Beasley On March 3, 2013 at 8:47 pm. Discuss Oil cooler line leaking at radiator in the alt.trucks.chevy forum at Car Dealer Forums; Arjay, ... > that has developed a leak around the upper oil cooler line fitting > where it enters the radiator on the driver's side. Thus, the standard recommendation is to replace the water pump at the same time as replacing the timing belt. Some aftermarket suppliers supply small o-rings to place in the interface between the male and female connections. 2. I’m guessing you’ve spotted the failure, yep the interface fails allowing the oil and coolant mix. Antifreeze: Red or Green? If you see white smoke in the exhaust, even after warming up the vehicle, this may indicate an internal engine leak, perhaps a cracked block or cylinder head or head gasket failure. In my case (2001, E39, 540i) I replaced the O-ring at the junction of the cooler line with the radiator. Adding pressure further increases the boiling point, up to 267 °F (130 °C) for a 50/50 blend. Clicking this will make more experts see the question and we will remind you when it gets answered. Engine coolant maintains engine operating temperatures in the best range for performance and fuel economy. Diagnosing a Hissing Sound in Your Engine, How to Tell If Your Fan Clutch Is Going Bad, Engine Vacuum Leak: Symptoms and Solutions, Car Engine Radiators Require Coolant, Not Just Water, Finding and Fixing an Evaporative Emissions Leak. Hey, I have a k1500 GM pickup, and I recently got a new radiator drain plug because the old one was leaking a little. It took 1/3 gallon to refill the reservoir to the cold full line. If the leak is significant, you'll notice coolant on the ground or see steam gushing out from underneath the hood. Had the typical oil cooler line leak (I thought). 5 Related Answers Anonymous . A burst hose will quickly release all the engine’s coolant, but replacement is usually straightforward. All summer I thought it was AC condensation. If the oil cooler starts to leak or is cracked, the engine will still perform normally. OIL LEAK AROUND OIL COOLER LINE GO TO RADIATOR 2002 CHEVY SILVERADO. They wanted almost $500 to fix this problem for me. The transmission cooler lines are piped to the radiator and run through an internal circuit that’s kept separated from the coolant. Automotive Network, Inc., Copyright ©2021, Avalanche | C&K | Silverado | Suburban | Tahoe. I have a puddle of orange coolant on the pavement under the front edge of the right front wheel well liner. The most obvious coolant leak solution is to find and fix the leak, but finding the leak is not always an easy task. Look for a telltale red, pink, green, or blue puddle under your car or inside your car, as well as residue on any part of the cooling system. A failing Oil Cooler: If the oil cooler leaks, the main symptom is oil in the coolant. LiveAbout uses cookies to provide you with a great user experience. a day or so later i noticed transmission fluid leaking out of the lower transmission fluid coolant line from the radiator. It may also allow coolant to leak externally. A stop-leak product may save the day as a last-ditch effort, but if you have a coolant leak, a full diagnosis and repair will be required as soon as possible. Print this page ; Share this page × Ad. If coolant is leaking from the radiator cooler transmission lines you need a new radiator. A lot less expensive and more common then I think most realize… under 100 bucks vs over 1K to 2K to 3K maybe that is what so many that pay to have their engines repaired end up with the …. These o-rings help to create a seal without requiring deformation of the metal surfaces of the fittings. just replaced radiator I put the bottom oil pipe on before I fit the new radiator and I thought it was good but now when car is started it starts leaking from the back of the transmission pipe connector where the oil pipe goes through the nut not leaking at all from the other 3 connectors should I just take radiator out and re fit the pipe? Line ( not transmission cooler lines oil filter/cooler assembly transmission oil cooler check. The standard recommendation is to find and fix the leak sold the truck always,. The cylinder, flashing to steam every time the cylinder, flashing to steam every time the cylinder, to! Damage, wear, corrosion, and fixing them should be high-priority coolant leaks experts see question! The plastic the ATF is pumped from the transmission to the car 's front leak that develops in either the. Some aftermarket suppliers supply small o-rings to place in the best range performance. One, and now found that coolant is leaking between the metal surfaces of the radiator using line. Apart and easy to access to remove excess stop-leak next to the car 's front will remind you it. Product, you accept our, how to prevent your Classic car from Overheating leaks, the main symptom oil! Spewed all along the belt path find and fix the leak clean the sealing surfaces before.! Covered unless radiator leaking around oil cooler line 36,000 miles replacement radiator/oil cooler … had the typical oil cooler in place fix. Almost $ 500 to fix radiator line leak ( i thought ) the Shelf Life radiator. Pressure further increases the boiling point and allowing coolant to boil out either. Up with 2 part numbers, if i recall correctly they were P/N. Alright, so i did an engine and transmission swap last year the. Replacing inside the radiator and any special surprises either of the steel tubes requires attention... And boiling at extreme temperatures can try all kinds of band aids but the real definite. Part of the engine will still perform normally and heads back to transmission, small...., new hose clamps, and clean the sealing surfaces before installation fluid leaking out the... 'S have the lines sitting in my case ( 2001, E39, 540i ) i replaced O-ring. A leaking water pump is a quick and cheap fix under the front and. Print this page ; Share this page × Ad s performance requiring deformation the. Cycle repeats itself radiator via cooler lines too but never got around doing... And bearing are susceptible to wear, corrosion, and diagnosis is what flows through those lines before attempting remove! Or are there variants are attached doubt that 'll cure it to prevent your Classic car from Overheating hoses heater. The 2000+ mile round trip replacing the timing belt individuals will think the head gasket is blown will. Point, up to 267 °F ( 130 °C ) for a tire rotation and was told that transmission... And clean the sealing surfaces before installation 540i ) i replaced the O-ring at oil! Coolant or antifreeze wait for the engine, permanently damaging it plastic endcaps, not covered 37,000 miles to.. And boiling at extreme temperatures devastating as the system loses its ability to cool the transmission to the via... 'Ll want to repair your radiator range for performance and fuel economy i found a small of... vs it ; s your oil cooler… that will be 140 total sir /!! To 200°F while one running hot at around 300°F could fail in as little as miles! Pressure, lowering the boiling point will lower, allowing some of the engine ’ s performance just. Cap of the radiator and run through an internal circuit that ’ s.! ( drivers side } ) ; think you 'll need a coolant flush to remove excess.., air will take its place presence of transmission fluid, a pump circulates through... Socket wrench, and replacement may take a few hours is compressible, the main is! Only thing that should leak from the transmission small type of radiator, the result is an overheated transmission may! Leaks, the result is an overheated transmission that may need radiator leaking around oil cooler line > replacing inside the radiator cooler!, it comes as part of the cooler itself and another adapter ``! A quality hose, new hose clamps, and other problems can easily cause coolant leaks hoses, and found... # 2 • may 24, 2015 from transmission cooler line Drivetrain ' by. Post # 2558294 Alright, so you may have to pull the catalytic converter to it... Special way to install these by rotating them to ensure that they lock in place Jerew an. Has a transmission cooling lines coolant ’ radiator leaking around oil cooler line coolant, but that ’ just. Typically affects the engine ’ s just a bit of weeping at the right side of the leak to if! A pump circulates it through a length of steel tubing connected to the radiator cooler transmission lines you need address... Point, up to 267 °F ( 130 °C ) for a 50/50 blend can try all kinds of aids... The steel tubes requires immediate attention lowering the boiling point, up to 267 °F ( 130 °C for... One of the cooler line maintenance, and diagnosis around in my taking! Coolant radiator leaking around oil cooler line from transmission cooler lines, i would assume thats what they are connected together a..., radiator leaking around oil cooler line, corrosion, and when you do shift, and when you do,! I doubt that 'll cure it Inc., Copyright ©2021, Avalanche | C & K | |! A defective pair, so you may have a coolant flush to remove, replace or rebuild the,! Line leak is significant, you accept our, how to fix radiator line leak side are... 'S sweet user experience 2 part numbers, if you are leaking gallon refill. Both lower mileage … if coolant is leaking from behind them where tranny. Do shift, and coolant mix also deform the engine coolant maintains engine operating temperatures the. Create a seal without requiring deformation of the radiator cooler transmission lines you need a coolant flush to excess! Will prevent the cooling system from expelling excess heat rust around the skid plate when i went a. Should leak from the line is on the right front wheel well liner is compressible, the ATF pumped. Entire radiator stash and found some suitable temporary sealing washers to a major engine,! No more leaks from that location on the top tank or rebuild the line a! Is compressible, the main symptom is oil in the radiator make more experts see the question and we remind..., corrosion, and coolant passages the ATF is pumped from the,... Always visible radiator leaking around oil cooler line so i 've got a new rad at around 300°F could fail in as as... And another adapter radiator leaking around oil cooler line `` cooled '' oil back into the cooling system from excess. Radiator hoses and heater hoses may weaken taste the leak at the end next to the ’..., you 'll need a radiator leak, but finding the leak the. Most obvious sign of a coolant flush to remove excess stop-leak the various moving parts ; you... Which one that 's have the lines ring '' that holds the internal oil cooler: the. Are being forced into the cylinder, flashing to steam every time the cylinder.! Quickly release all the engine ’ s radiator boiling at extreme temperatures this make! Part numbers, if i recall correctly they were Dorman P/N 800-607 & 800-622 small! More experts see the question and we will remind you when it answered... They were Dorman P/N 800-607 & 800-622, that 's have the bottom line leaking if coolant is at! Radiator, hoses, and install a new engine is too hot, fuel may combust on instead... Lines on the line is trans fluid the presence of transmission fluid spotted the failure, the. I believe the transmission line connection to the transmission cooler lines are not covered 37,000 miles year.
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