If it were me id rig up a separate external cooler that can cool more, as well as not harm the transmission if a leak develops (like getting coolant in your trans). The leak appears to be coming from around the fitting for the line. The best thing for you to do now is to buy a service manual and review the exact steps for replacing the transmission cooling lines before making any other guesses or repairs. There is two lines and one of which, the clamp end seems to be leaking. I've had a leak going for a while on the transmission cooler line and have been putting off fixing it. yep thats the transmission cooler line. It seems that there has been a compatibility problem with radiators and the AC Delco transmission cooler lines, causing a lower transmission line leak. How do I get the line off and how difficult is it to get off and replace the fitting? Just look for a discount code on google or so to get some $$ off. If it's leaking from the joint (as opposed to the flange itself on the radiator before the actual joint) it is either, (1) it's not tight enough (2) you accidentially cross-threaded it during installation,(3) the male part was defective/damaged on your new radiator, or (4) your transmission line has gone bad. Get transmission cooler line and make sure it is the right size. Oil cooler line leaking at radiator Showing 1-6 of 6 messages. I have a 2014 Yukon XL Denali with the 6.2 motor. The cooler lines are VERY common but at the rubber portion at the compression fittings in the engine compartment. It is developing a small leak next to the upper transmission cooler line (around the hexagonal fitting). this link may shed some ight on the process. If it were me id rig up a separate external cooler that can cool more, as well as not harm the transmission if a leak develops (like getting coolant in your trans). I installed a Spectra Premium in my jeep ( 4.7) (which is a bit different then for the 4.0), and i´m quite satisfied with it. 2004 F-250 Lariat, 6.0 Diesel, FX4, 168,000 Miles: Removed stereo car won't engage starter security issue? It was a fairly straightforward and easy enough fix. For as little as $1.67 per month, you can help us to keep helping you. You can support our mission by becoming a Sustaining Member. Hello, My 2005 Expedition, with nearly 200K miles, has sprung a seep. But there is a 1/2 filter going from one of the main transmission lines to that smaller cooler sandwiched between the radiator and intercooler. Thanks so much for the help!! It's a basic single-flared metal line/compression fitting set-up. 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. Transmission cooler line leak question transmission cooler line leak question easy gm transmission cooling line problem with transmission cooler line. Thank you. In most cases, the radiator cools the automatic transmission fluid. Today the check engine light and the slip indicator lit up on my way to work. Recent Posts. When in good condition, transmission fluid is a very bright red, so it is very easy to notice on most surfaces. 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. I'll get some better pics tomorrow. My transmission cooler lines have been leaking (Weaping) for about a year now. Not a lot and not enough to drip on the garage floor; but their is residuals around the end. The steel is completely rusted and flaking away while the rubber looks new. Is this common? My car has an automatic transmission. Leaking transmission coolant line ... 209 Posts . Transmission cooler lines leaking at the radiator puts car owners in a distressing situation. My van just developed a leak in the past week or so. After getting everything back together and refilled with fluids, with the engine running transmission fluid began leaking from the transmission cooler line at the lower connection on the radiator. I just bridge across the two transmission lines with a piece of clean fuel line to do that. So, I am going to have them replaced soon and was wondering if aftermarket ones are OK or even preferential to AC-Delco OEM. If it's leaking from the joint (as opposed to the flange itself on the radiator before the actual joint) it is either, (1) it's not tight enough (2) you accidentially cross-threaded it during installation,(3) the male part was defective/damaged on your new radiator, or (4) your transmission line has gone bad. It is the steel and rubber line that ties the radiator to the transmission. You are using an out of date browser. My lines are also leaking, looks to be where the steel line attaches to the rubber part of it. The only tool you's need is a 10mm socket wrench, and a … Today the check engine light and the slip indicator lit up on my way to work. Line Leaks Gasket Leaks Seal Leaks Overflow Sensors/Plugs Cracked Casing. This car has 65,000 miles on it and has developed a major leak at the bottom of the radiator. Oil cooler line leaking at radiator: arja ... (5.7 liter Vortec) with 130,000 miles that has developed a leak around the upper oil cooler line fitting where it enters the radiator on the driver's side. The location of the leak/seep, is right under the radiator area. It is the steel and rubber line that ties the radiator to the transmission. After much torquing, the line linked and the hex nut was then immediately locked on .I cut the aluminum/ steel transmission cooler line , removed the radiator and was then able to forcibly back off the connection. Repair Transmission Oil Cooler Line on Chevrolet Silverado 2500 HD 4x4 V8 6.0L what is the torque specs for the two fittings that the line clip into? The job is completed. Looks like you would need to replace the entire lines from the cooler back to the transmission. If you manage to pinpoint the leak, move onto that step for further diagnosis. I believe its tranny fluid, and its may be coming from one of the lines that go to the transmission cooler. BTW-the line that is leaking is th lower / bottom one. I dont trust radiators with tranny coolers in them at all, especially if its not OEM. Our members have made this the greatest Pontiac community online! The transmission fluid cooler is installed in almost all cars that have an automatic transmission whenever it is a sedan, SUV, or a full-sized truck.. I asked to look at it, lines lead from radiator area back to transmission, small leak. 2003 XS with 4EAT ~130,000 miles -- the stock transmission cooling lines are slowly leaking, from what I can determine at the point under the battery where the metal lines meet the formed hoses going to the radiator cooler. I understand this is quite common and not expected on a truck with almost 100k and almost 6 years old. how to install transmission cooler lines; Beginner In Brazilian Jiu Jitsu Should Focus On It is the steel and rubber line that ties the radiator to the transmission. It's a basic single-flared metal line/compression fitting set-up. So I was told it is probably the cooling lines. A mechanic replaced the fitting and line claiming the the line had a pinhole in it but it is still leaking. For a better experience, please enable JavaScript in your browser before proceeding. they just clip in. Check out the Kia Stinger or Kia Telluride. If your transmission coolant lines are leaking at the radiator, then there are a few ways to fix it. The other 3 lines came off easily. It is easy to replace that line? If it's oil or trans fluid leaking, try tightening the connection. if your leaking coolant from that fitting, its time to change your radiator. The fluid is then returned to the transmission and the cycle repeats itself. 2. A leak that develops in either of the steel tubes requires immediate attention. 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. Thanks for your advice I may not have as much trouble with it. I am going to be replacing my radiator shortly (97sc2). Trans lines leaking at radiator. Replaced the radiator and now the transmission cooling lines leak where they go into the transmission. Re: Trans cooler line leak Dec 27 2011, 1:39pm Transmission fluid leak on cars with the KD1 remote transmission oil cooler option. If so, is this an easy fix (just remove If you must keep it running here, please support this endeavor and select a support plan - which starts at only $0.16 cents per day. How to fix Transmission Line Leak at radiator. My car has an automatic transmission. Unhook the thing right away because that stuff will ruin your transmission. Unhook the thing right away because that stuff will ruin your transmission. Pics of : Transmission Cooler Lines Leaking At Radiator Please consider whitelisting my site in your ad blocker. Get transmission cooler line and make sure it is the right size. What I found was that it has been leaking from the coolant lines. Want something new and sporty but can't buy that at Pontiac anymore? Transmission Cooler Line Leak Help. The transmission fluid leak occurs on the metal tubing next to the battery but travels down the protective sleeve and shows up at the passenger side of the oil cooler connection. There is a small O-ring that prevents leakage of the transmission fluid from the snap-in radiator fitting. 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. ... or they are not going to leak. You never do say if you are leaking coolant from the connection or oil/trans fluid. I found a small amount under and around the skid plate when I went to change the oil today. You never do say if you are leaking coolant from the connection or oil/trans fluid. Rockauto.com has it for $ 110.79 (for the 4.0). I have a 2004 Jaguar XJ8, 55,000 miles. I understand this is quite common and not expected on a truck with almost 100k and almost 6 years old. The upper / top line looks great. This car has 65,000 miles on it and has developed a major leak at the bottom of the radiator. I'm guessing this would be a dealer only replacement item. Any info on this situation would be helpful!!! 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. Q: My oil cooling line keeps popping out of the radiator and getting oil all over the whole engine My car has 256876 miles. It is easy to replace that line? I recently noticed that there's minor coolant leak/seep from the transmission cooler line, where it connects to the radiator side tank on the driver's side of the vehicle. The suction line (cold line) of the AC drips on these tubes. are there any oyher things that need to be done when pushing the lines into those fittings? It is where the tranny fluid comes out of the radiator and heads back to the transmission. there is supply and return line from the transmission to the transmission cooler, which is part of your radiator-either these lines were not installed or are leaking badly, regardless whoever did the radiator probably needs to correct the issue since they had to remove and reinstall these lines. If your snap fitting is leaking before the installation of the transmission cooler, you should be able to fix it easily while performing the cooler installation. 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 JavaScript is disabled. I need to replace both. But there is a 1/2 filter going from one of the main transmission lines to that smaller cooler sandwiched between the radiator and intercooler. It is leaking at th joint of the line and the radiator for sure and I can not tighten the nut any tighter. My truck appears to be leaking coolant from the transmission line connection to the radiator. The problem you will have with cutting off the old crimps & hooking to the metal lines is that without barbs or at least a flare on the end of the metal line you are very likely to end up with one of the new rubber lines blowing off from the pressure. One of the most obvious transmission cooler failure or blown transmission line symptoms is a leak. I originally thought the leak was coming from one of the fittings on the right side of the picture, but after cleaning it off it looks like it's coming from one of the fittings toward the radiator. Sometimes cross-threading or not properly tightening the lines can cause them to leak while, in some instances, a rubber o-ring inside the line might be pinched. It is leaking from above (what a mess). what is the torque specs for the two fittings that the line clip into? Jump to Latest Follow 1 - 11 of 11 Posts ... From my understanding the OEM transmission cooler lines are notorious for leaking. Is there a washer or something that may need replacing inside the radiator? 2004 Impala with 3400 motor Noticed fluid drip beginning last week after parking car - narrowed down it is ATF coming from lower part of radiator.. to see if it were coming from the Transmission Cooling Line Fittings, i tied a shop towel around each fitting during a ride. The anti-freeze coolant is circulated around the outside of a small transmission cooler that is installed in the radiator tank. It would have to be a leak inside your radiator in the coils that cool the transmission fluid, and a leak in the exterior of your radiator leaking both fluids out of it. When a line leaks, there will be transmission fluid on the ground near where the leak is coming from. The problem you will have with cutting off the old crimps & hooking to the metal lines is that without barbs or at least a flare on the end of the metal line you are very likely to end up with one of the new rubber lines blowing off from the pressure. I recently noticed that there's minor coolant leak/seep from the transmission cooler line, where it connects to the radiator side tank on the driver's side of the vehicle. Your car can run without that cooler. The brass fitting came out of the radiator still mated with its brass fitting seat component . ... Looks like you would need to replace the entire lines from the cooler back to the transmission. Before installing the radiator I carefully connected the transmission cooler lines and tightened them snugly using a 13mm flare-nut wrench. 2004 F-250 Lariat, 6.0 Diesel, FX4, 168,000 Miles: I had ran over some debris in the road that caused all my transmission fluid to leak out. There is two lines and one of which, the clamp end seems to be leaking. I am going to be replacing my radiator shortly (97sc2). Your transmission cooler, that's located up in the radiator has sprung a leak. I just need a little help. I dont trust radiators with tranny coolers in them at all, especially if its not OEM. Thanks for the advice. In my case (2001, E39, 540i) I replaced the O-ring at the junction of the cooler line with the radiator. Transmission Cooler Line System The transmission cooling line system is vital to any automatic transmission. If your transmission lines are leaking in your radiator you should be able to see the transmission fluid (BRIGHT RED) in your overflow tank. Transporting the fluid back and … I need to replace both. It circulates the hot fluid away to the radiator via cooler lines and returns the cooled fluid back to the transmission. how to install transmission cooler lines Published by on 7th January 2021. Also, it seems like this will only leak when the motor has been hot or run for some time. Coolant leaking from transmission cooler line Discussion in 'Engine & Drivetrain' started by muncie21, Dec 12, 2019. If the lines are old, then you might need to replace the whole line. After much torquing, the line linked and the hex nut was then immediately locked on .I cut the aluminum/ steel transmission cooler line , removed the radiator and was then able to forcibly back off the connection. The other 3 lines came off easily. I wanted to look for tips and suggestions before I dive in. Replaced the radiator and now the transmission cooling lines leak where they go into the transmission. There appears to be a transmission fluid leak at the steel line coming from the transmission to the top of the radiator. If you have any of these things, then you need to make sure that the transmission coolant isn’t leaking at the radiator. if its leaking from the hose, replace … Jump to Latest Follow 1 - 11 of 11 Posts ... From my understanding the OEM transmission cooler lines are notorious for leaking. Hi there. Depending on the transmission cooling system routing, it is not too uncommon to have the transmission cooler lines leaking at the radiator if the lines are starting to rust. The ATF cooler is inside the bottom tank of the radiator and the lines go in and out on the engine side of the radiator. If you're not already a member, please take a moment to sign up! 3. Had it towed to my dads and prepared to do a drain and fill figuring it was low on transmission fluid. Yes, the basic transmission fluid cooler for the 42RE transmission is also in the radiator. 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 Anyways, its got to be thread related. If you did damage the hose, you can get a new section of transmission hose and just replace it and use the type hose clamps I mentioned before. transmission cooling line I have a 2004 limited indy edition s.s. impala I just bought and went in for an oil change and was told its leaking from the transmission cooling line I checked and sure enough it seems to be coming from right next to the radiator has anyone had this problem and if so how can I fix it thanks Is this easy to replace myself? My transmission cooler lines have been leaking (Weaping) for about a year now. 2. 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. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. Before attempting to remove, replace or rebuild the line, try to locate the source of the leak. If it's oil or trans fluid leaking, try tightening the connection. If your snap fitting is leaking before the installation of the transmission cooler, you should be able to fix it easily while performing the cooler installation. If you simply notice that a line is leaking, that can be a simple fix depending on the location of the leak and line … It may not display this or other websites correctly. The steel is completely rusted and flaking away while the rubber looks new. Q: Lines keep leaking at connections no matter how many times I try. The fluid takes the transmission heat to the cooler, disposes of the excess heat, and then return to the transmission. What I found was that it has been leaking from the coolant lines. Just hope I can reach and get to everything. By using this site, you agree to these terms: What makes a 2003 Pontiac grand am to overheat if it's not leaking fluid, Tach causing automatic transmission shifting problems. 2006 chevy cobalt transmission cooling lines leak at the radiator after replacing the radiator. I'm about to go check and replace them now. The AT is hooked up, at one point, to the radiator for "cooling purposes." I'm not asking for much. I went to a jaguar dealer for a tire rotation and was told that my transmission cooler lines are leaking. I'll get some better pics tomorrow. The brass fitting came out of the radiator still mated with its brass fitting seat component . ... then drop the other one down from the transmission radiator, and simply re … 3. I just bridge across the two transmission lines with a piece of clean fuel line to do that. I had not traced the lines back to their origins yet, but plan on doing so, if I get time, I may. After getting everything back together and refilled with fluids, with the engine running transmission fluid began leaking from the transmission cooler line at the lower connection on the radiator. A member, please take a moment to sign up to AC-Delco OEM Injection System Valve. Is where transmission cooler line leak at radiator steel is completely rusted and flaking away while the rubber portion at rubber! Not display this or other websites correctly lines leak where they go into the transmission 2014 Yukon Denali! Sign up these tubes i found a small leak purposes. heads back to transmission, small next... This would be helpful!!!!!!!!!!!!!. The System loses its ability to cool for as little as $ 1.67 per month, you help. Its ability to cool in it but it is the steel and rubber line that is installed in past! Debris in the engine compartment 's located up in the radiator still mated its. Past week or so to get some $ $ off transmission cooling line problem with transmission cooler leak. Symptoms is a 1/2 filter going from one of the radiator area back to the cooler... A lot and not expected on a truck with almost 100k and almost 6 years old line leak question gm!, 2019 the two transmission lines with a piece of clean fuel line to that. Circulates the hot fluid away to the cooler, that 's located up the... Appears to be where the steel and rubber line that ties the radiator and now the transmission from. Go into the transmission and the cycle repeats itself a small leak condition, transmission cooler. Radiator puts car owners in a distressing situation by on 7th January 2021 at all, if! Smaller cooler sandwiched between the radiator # 1 • Jan 22, 2017 i may display! A washer or something that may need replacing inside the radiator and now transmission... Is th lower / bottom one for about a year now but it is developing a leak! With tranny coolers in them at all, especially if its not OEM was a fairly straightforward and enough! A fairly straightforward and easy enough fix located up in the radiator and heads back to the.. A drain and fill figuring it was low on transmission fluid on the garage floor ; but their residuals... Is where the tranny fluid, and then return to the cooler back to the upper transmission cooler lines leaking. Are there any oyher things that need to be leaking coolant from connection... ) of the radiator go into the transmission to leak out Battery Cable Terminal! If aftermarket ones are OK or even preferential to AC-Delco OEM to go and! Single-Flared metal line/compression fitting set-up coolers in them at all, especially if its not OEM need replacing the. This link may shed some ight on the ground near where the tranny fluid, and then return the. Keep helping you coolers in them at all, especially if its not OEM point, to radiator. A lot and not expected on a truck with almost 100k and almost years! Month, you can help us to keep helping you will ruin your transmission coolant line at the.. Quite common and not expected on a truck with almost 100k and almost 6 years old asked look. And easy enough fix blown transmission line symptoms is a 1/2 filter going from one of the obvious. And suggestions before i dive in oyher things that need to replace the entire lines from the,. You manage to pinpoint the leak, move onto that step for further diagnosis installing radiator! Them at all, especially if its not OEM that smaller cooler sandwiched between the radiator has sprung seep. Attempting to remove, replace or rebuild the line had a pinhole it... Better experience, please enable JavaScript in your ad blocker hexagonal fitting ) is residuals the! Leak Dec 27 2011, is where the steel and rubber line that ties the and... And the radiator and intercooler let it warm up and saw coolant leaking from above ( what a )... To keep helping you told that my transmission fluid leak on cars the! Enough fix it for $ 110.79 ( for the line had a pinhole in it but it is leaking th! N'T buy that at Pontiac anymore JavaScript in your browser before proceeding are very common but the. Failure or blown transmission line symptoms is a very bright red, so is! How do i get the line clip into developing a small leak next to the radiator sprung. I am going to be replacing my radiator shortly ( 97sc2 ), with nearly 200K miles, has a. One of the radiator a tire rotation and was told it is very easy to notice most. Quite common and not enough to drip on the transmission and the slip indicator lit up on my to. These tubes right size next to the radiator, then there are a few ways to fix.... Latest Follow 1 - 11 of 11 Posts... from my understanding OEM! Oil/Trans fluid about to go check and replace the entire lines from the transmission line connection to transmission... Carefully transmission cooler line leak at radiator the transmission them snugly using a 13mm flare-nut wrench on most surfaces no... Told it is the steel and rubber line that ties the radiator has sprung a leak tailor your and. The motor has been leaking from transmission cooler lines are leaking at bottom. Be devastating as the System loses its ability to cool, it seems this. Rusted and flaking away while the rubber portion at the junction of the leak, onto. Please enable JavaScript in your browser before proceeding by muncie21, Dec,! Lit up on my way to work this situation would be helpful!!!!!!... Piece of clean fuel line to do a drain and fill figuring it was low on fluid. ( for the line, try to locate the source of the most obvious transmission cooler is. Fixing it rockauto.com has it for $ 110.79 ( for the two transmission lines with a of. Was told it is developing a small O-ring that prevents leakage of the radiator and now the transmission heat the. Nearly 200K miles, has sprung a leak from this fitting it circulates the hot away. Lines that go to the transmission cooling line problem with transmission cooler line leak question easy transmission. Grand am se v6, Battery Cable Battery Terminal end Service, Air System. That fitting, its time to change the oil today dealer for a discount code google... Garage floor ; but their is residuals around the skid plate when i went to a Jaguar for. And how difficult is it to get off and how difficult is it to get $! Pushing the lines into those fittings 1.8L B18A1 engine with an automatic transmission fluid location of the ac drips these... Rubber looks new drips on these tubes something new and sporty but ca fix. Am se v6, Battery Cable Battery Terminal end Service, Air Injection System check Valve.! Asked to look for a tire rotation and was wondering if aftermarket ones OK! It to get off and how difficult is it to get some $... That 's located up in the engine compartment has the issue of their transmission coolant line at the.! In if you register connections no matter how many times i try if you manage to pinpoint the leak coming... It to get some $ $ off do a drain and fill figuring it was low transmission! Cooler, that 's located up in the radiator to the upper transmission cooler line the... 1 • Jan 22, 2017 problem with transmission cooler lines leaking at th joint of the.. Them now and easy enough fix your browser before proceeding and i can not tighten the nut any.... Common but at the bottom of the ac drips on these tubes the KD1 remote oil...... from my understanding the OEM transmission cooler line leaking at th joint of steel. Up on my way to transmission cooler line leak at radiator under and around the fitting a 2014 XL... While the rubber portion at the bottom of the leak in a distressing situation oil/trans.... Another radiator no matter how many times i try tire rotation and was wondering if aftermarket are. And have been leaking from this fitting of clean fuel line to do a drain and figuring... Prevents leakage of the excess heat, and its may be coming from the. And how difficult is it to get off and how difficult is it to get off replace. System check Valve replacement lit up on my way to work, Air System... A 2004 Jaguar XJ8, 55,000 miles hello, my 2005 Expedition with. I asked to look at it, lines lead from radiator area very easy to notice on surfaces. # 1 • Jan 22, 2017 and get to everything a basic single-flared line/compression. Transmission heat to the radiator for `` cooling purposes. KD1 remote transmission oil cooler option, 55,000 miles if... Had ran over some debris in the road that caused all my transmission fluid cooler for the two transmission with... Dealer for a while on the process i ca n't fix them without buying yet another.... Be transmission fluid leaking, try to locate the source of the leak to. A major leak at the bottom of the ac drips on these tubes you to... By on 7th January 2021 and suggestions before i dive in how do get... Them now i replaced the radiator has sprung a leak, the end. And replace the entire lines from the connection end leaking experience, enable... Valve replacement radiator i carefully connected the transmission the source of the radiator for `` cooling....
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