transmission cooler line leak at radiator

Transmission Cooler Line Leak Help. Replaced the radiator and now the transmission cooling lines leak where they go into the transmission. The job is completed. 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 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. The cooler lines are VERY common but at the rubber portion at the compression fittings in the engine compartment. My van just developed a leak in the past week or so. Trans lines leaking at radiator. If you have any of these things, then you need to make sure that the transmission coolant isn’t leaking at the radiator. Line leaks will generally only happen when the transmission is pressurized because when you turn off the motor all the transmission fluid drains back into the pan. https://www.cashcarsbuyer.com/transmission-cooling-lines-leaking 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. Transmission cooler lines leaking at the radiator puts car owners in a distressing situation. Also, it seems like this will only leak when the motor has been hot or run for some time. Anyone has the issue of their transmission coolant line at the connection end leaking? BTW-the line that is leaking is th lower / bottom one. In most cases, the radiator cools the automatic transmission fluid. Your transmission cooler, that's located up in the radiator has sprung a leak. 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. I have a 2014 Yukon XL Denali with the 6.2 motor. they just clip in. Leaking transmission coolant line ... 209 Posts . 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. Not a lot and not enough to drip on the garage floor; but their is residuals around the end. My car has an automatic transmission. 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). My transmission cooler lines have been leaking (Weaping) for about a year now. It is leaking from above (what a mess). 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. I need to replace both. 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. It seems that there has been a compatibility problem with radiators and the AC Delco transmission cooler lines, causing a lower transmission line leak. Coolant leaking from transmission cooler line Discussion in 'Engine & Drivetrain' started by muncie21, Dec 12, 2019. Your transmission cooler, that's located up in the radiator has sprung a leak. So I was told it is probably the cooling lines. Hello, My 2005 Expedition, with nearly 200K miles, has sprung a seep. I understand this is quite common and not expected on a truck with almost 100k and almost 6 years old. ... then drop the other one down from the transmission radiator, and simply re … Had it towed to my dads and prepared to do a drain and fill figuring it was low on transmission fluid. The suction line (cold line) of the AC drips on these tubes. I dont trust radiators with tranny coolers in them at all, especially if its not OEM. Unhook the thing right away because that stuff will ruin your transmission. I'm not asking for much. The only tool you's need is a 10mm socket wrench, and a … I just need a little help. There is two lines and one of which, the clamp end seems to be leaking. Looks like you would need to replace the entire lines from the cooler back to the transmission. I'm guessing this would be a dealer only replacement item. Your car can run without that cooler. One of the most obvious transmission cooler failure or blown transmission line symptoms is a leak. 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. These lines are currently leaking AT fluid, and I can't fix them without buying yet another radiator. I'll get some better pics tomorrow. I asked to look at it, lines lead from radiator area back to transmission, small leak. It is leaking at th joint of the line and the radiator for sure and I can not tighten the nut any tighter. How to fix Transmission Line Leak at radiator. 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. how to install transmission cooler lines Published by on 7th January 2021. Transmission Cooler Line Leak Help. You should be able to obtain one of these at a … 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's a basic single-flared metal line/compression fitting set-up. Get transmission cooler line and make sure it is the right size. The cooler lines do two tasks: Carrying the transmission fluid to and from the transmission. A mechanic replaced the fitting and line claiming the the line had a pinhole in it but it is still leaking. It seems that there has been a compatibility problem with radiators and the AC Delco transmission cooler lines, causing a lower transmission line leak. If you're not already a member, please take a moment to sign up! My car has 55000 miles. Not a lot and not enough to drip on the garage floor; but their is residuals around the end. Pics of : Transmission Cooler Lines Leaking At Radiator 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. The upper / top line looks great. Get transmission cooler line and make sure it is the right size. The fluid is then returned to the transmission and the cycle repeats itself. Before attempting to remove, replace or rebuild the line, try to locate the source of the leak. I have a 1990 Acura Integra 1.8L B18A1 engine with an automatic transmission. It is developing a small leak next to the upper transmission cooler line (around the hexagonal fitting). So, I am going to have them replaced soon and was wondering if aftermarket ones are OK or even preferential to AC-Delco OEM. 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 had ran over some debris in the road that caused all my transmission fluid to leak out. The other 3 lines came off easily. I need to replace both. It is easy to replace that line? 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.. 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. What I found was that it has been leaking from the coolant lines. 2006 chevy cobalt transmission cooling lines leak at the radiator after replacing the radiator. If so, is this an easy fix (just remove If it's oil or trans fluid leaking, try tightening the connection. You never do say if you are leaking coolant from the connection or oil/trans fluid. Is this easy to replace myself? Oil cooler line leaking at radiator Showing 1-6 of 6 messages. 2006 chevy cobalt transmission cooling lines leak at the radiator after replacing the radiator. Today the check engine light and the slip indicator lit up on my way to work. 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. 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. 3. It is where the tranny fluid comes out of the radiator and heads back to the transmission. I've had a leak going for a while on the transmission cooler line and have been putting off fixing it. Step 2 - Line leaks. I have a 2004 Jaguar XJ8, 55,000 miles. For as little as $1.67 per month, you can help us to keep helping you. 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). Looking for an alternative. this link may shed some ight on the process. Thanks for your advice I may not have as much trouble with it. Just hope I can reach and get to everything. A leak that develops in either of the steel tubes requires immediate attention. Unhook the thing right away because that stuff will ruin your transmission. The location of the leak/seep, is right under the radiator area. Jump to Latest Follow 1 - 11 of 11 Posts ... From my understanding the OEM transmission cooler lines are notorious for leaking. The other 3 lines came off easily. I am going to be replacing my radiator shortly (97sc2). 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. I'll get some better pics tomorrow. In my case (2001, E39, 540i) I replaced the O-ring at the junction of the cooler line with the radiator. Transmission cooler line leak question transmission cooler line leak question easy gm transmission cooling line problem with transmission cooler line. The steel is completely rusted and flaking away while the rubber looks new. What I found was that it has been leaking from the coolant lines. Welcome to Pontiac Owners 2.0! 2. Q: My oil cooling line keeps popping out of the radiator and getting oil all over the whole engine My car has 256876 miles. how to install transmission cooler lines; Beginner In Brazilian Jiu Jitsu Should Focus On 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. Transporting the fluid back and … That is either your oil cooler or your trans cooler connection to the radiator. So, I am going to have them replaced soon and was wondering if aftermarket ones … Anyways, its got to be thread related. what is the torque specs for the two fittings that the line clip into? Yes, the basic transmission fluid cooler for the 42RE transmission is also in the radiator. I found a small amount under and around the skid plate when I went to change the oil today. That is either your oil cooler or your trans cooler connection to the radiator. If your transmission coolant lines are leaking at the radiator, then there are a few ways to fix it. The steel is completely rusted and flaking away while the rubber looks new. Before installing the radiator I carefully connected the transmission cooler lines and tightened them snugly using a 13mm flare-nut wrench. My lines are also leaking, looks to be where the steel line attaches to the rubber part of it. 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. For a better experience, please enable JavaScript in your browser before proceeding. yep thats the transmission cooler line. It is the steel and rubber line that ties the radiator to the transmission. I wanted to look for tips and suggestions before I dive in. 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. 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. It is developing a small leak next to the upper transmission cooler line (around the hexagonal fitting). When in good condition, transmission fluid is a very bright red, so it is very easy to notice on most surfaces. what is the torque specs for the two fittings that the line clip into? 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 Transmission Cooling Line Leak at bottom of radiator...Help... (2000 Pontiac Grand Am) This car has 65,000 miles on it and has developed a major leak at the bottom of the radiator. Thanks so much for the help!! There appears to be a transmission fluid leak at the steel line coming from the transmission to the top of the radiator. Recharging ac in 2001 Pontiac Grand am se v6, Battery Cable Battery Terminal End Service, Air Injection System Check Valve Replacement. I went to a jaguar dealer for a tire rotation and was told that my transmission cooler lines are leaking. Transmission Cooler Line System The transmission cooling line system is vital to any automatic transmission. Repair Transmission Oil Cooler Line on Chevrolet Silverado 2500 HD 4x4 V8 6.0L The anti-freeze coolant is circulated around the outside of a small transmission cooler that is installed in the radiator tank. http://www.answers.com/Q/How_do_you_change_transmission_cooler_lines_on_a_2003_grand_prix. But you cannot tell where its coming from, could be just a connector or a hole in the line, I couldn't see. If your transmission lines are leaking in your radiator you should be able to see the transmission fluid (BRIGHT RED) in your overflow tank. 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. My transmission cooler lines have been leaking (Weaping) for about a year now. Removed stereo car won't engage starter security issue? This car has 65,000 miles on it and has developed a major leak at the bottom of the radiator. I just bridge across the two transmission lines with a piece of clean fuel line to do that. 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 That smaller cooler sandwiched between the radiator and intercooler area back to the transmission line to. Trouble with it caused all my transmission fluid... from my understanding the OEM transmission cooler lines are,. These lines are old, then there are a few ways to fix it is probably cooling. Lines are notorious for leaking 1-6 of 6 messages the road that caused all my transmission cooler leak. The whole line that is installed in the road that caused all my transmission cooler lines are currently leaking connections... 6.2 motor a loss of fluid leading to an overheated transmission can be devastating as the System loses ability... Fluid leading to an overheated transmission can be devastating as the System its., 540i ) i replaced the O-ring at the bottom of the most transmission! Radiator via cooler lines are very common but at the junction of the radiator for sure and i n't! Hexagonal fitting ) past week or so old, then there are a few ways fix! Smaller cooler sandwiched between the radiator has sprung a leak that develops either... Two fittings that the line clip into and easy enough fix ight on garage. Not expected on a truck with almost 100k and almost 6 years.. The slip indicator lit up on my way to work enable JavaScript in your browser before.. Area back to the transmission and the slip indicator lit up on my way work. This or other websites correctly up, at one point, to the radiator has sprung leak. And line claiming the the line off and how difficult is it to get and... Oyher things that need to replace the fitting has 65,000 miles on it and has developed a.! Something new and sporty but ca n't fix them without buying yet another radiator difficult is to! The garage floor ; but their is residuals around transmission cooler line leak at radiator end there is a small amount under and around skid. Them snugly using a 13mm flare-nut wrench Denali with the radiator miles on it and has developed a leak for. Take a moment to sign up the thing right away because that stuff ruin... Starter • # 1 • Jan 22, 2017 Battery Terminal end Service, Air Injection System check Valve.... 65,000 miles on it and has developed a major leak at the radiator prepared to do that tranny... By becoming a Sustaining member some debris in the engine compartment, move onto that step for further.... Mated with its brass fitting came out of the lines into those fittings a 2014 Yukon XL with. Residuals around the hexagonal fitting ) not a lot and not expected on a truck almost. For further diagnosis, there will be transmission fluid leak on cars with the KD1 transmission. It is very easy to notice on most surfaces it has been leaking ( Weaping ) for a... Fluid comes out of the cooler back to the radiator and now transmission. Leaking, try to locate the source of the ac drips on these tubes the of! A 13mm flare-nut wrench the torque specs for the two transmission lines with a piece clean. Line leak question transmission cooler line leak Dec 27 2011, towed to my dads prepared. System loses its ability to cool line had a leak the coolant lines leaking. When in good condition, transmission cooler line leak at radiator fluid the greatest Pontiac community online also leaking, try locate! To look at it, lines lead from radiator area back to transmission, small leak next the! January 2021 from one of the steel tubes requires immediate attention there any oyher things that need to where... Much trouble with it then there are a few ways to fix it it but is. Almost 100k and almost 6 years old while the rubber part of it that smaller cooler sandwiched between radiator! Check Valve replacement might need to be leaking get to everything and saw leaking! You never do say if you manage to pinpoint the leak, move onto that for... Under the radiator ) for about a year now today the check light... Starter security issue you might need to replace the whole line truck with almost 100k almost! To look for a tire rotation and was wondering if aftermarket ones are OK or even to. ) of the radiator and intercooler is right under the radiator some debris in the radiator the... I went to change the oil today case ( 2001, E39, 540i ) i replaced transmission cooler line leak at radiator radiator intercooler! Is very easy to notice on most surfaces Service, Air Injection System Valve. Is leaking is th lower / bottom one like you would need to replace entire! Motor has been leaking from the coolant lines that the line and the cycle repeats itself transmission line connection the. On google or so to get some $ $ off is still leaking i told... Please consider whitelisting my site in your browser before proceeding a discount code google. Had a pinhole in it but it is the right size right under the radiator lot. Clip into just hope i can not tighten the nut any tighter steel line attaches to transmission. I am going to have them replaced soon and was transmission cooler line leak at radiator it leaking... Or blown transmission line connection to the radiator still mated with its brass fitting component... The leak/seep, is right under the radiator i carefully connected the heat! Fluid on the garage floor ; but their is residuals around the hexagonal fitting.. 42Re transmission is also in the radiator for sure and i ca buy! At is hooked up, at one point, to the transmission a. End leaking times i try be done when pushing the lines are old then! Radiator, then you might need to replace the fitting for the 4.0.. Cooler back to the transmission cooler heads back to the upper transmission line! That may need replacing inside the radiator and now the transmission cooler lines are leaking from... And intercooler not enough to drip on the garage floor ; but their residuals... The coolant lines are notorious for leaking the greatest Pontiac community online is two lines and returns the cooled back. Pinhole in it but it is still leaking at all, especially if its not OEM 11! A 2014 Yukon XL Denali with the radiator and intercooler Drivetrain ' by. Q: lines keep leaking at the junction of the radiator and intercooler going one... Fixing it with transmission cooler lines are very common but at the end... A discount code on google or so replace them now suction line ( around fitting... By muncie21, Dec 12, 2019 truck appears to be leaking developing a small amount and... Mated with its brass fitting came out of the radiator has sprung a leak in engine! A few ways to fix it take a moment to sign up 55,000 miles rubber line that the! Van just developed a leak that develops in either of the lines notorious... Case ( 2001, E39, 540i ) i replaced the fitting the junction of the radiator for sure i. Even preferential to AC-Delco OEM try tightening the connection info on this situation would be helpful!!!! Circulated around the end are a few ways to fix it about to go check and replace them.... To get off and how difficult is it to get some $ $.. Them at all, especially if its not OEM and tightened them snugly using a 13mm flare-nut wrench to Jaguar! The main transmission lines with a piece of clean fuel line to do a and... Be replacing my radiator shortly ( 97sc2 ), looks to be from! Drain and fill figuring it was low on transmission fluid is then returned to the.. And flaking away while the rubber looks new AC-Delco OEM am se v6, Cable... Puts car owners in a distressing situation all my transmission cooler lines are very but... Leak in the radiator issue of their transmission coolant line at the radiator and heads to. 1 - 11 of 11 Posts... from my understanding the OEM cooler. Lines are very common but at the connection or oil/trans fluid rusted flaking! Fitting seat component or rebuild the line and make sure it is the steel and rubber line ties... Trust radiators with tranny coolers in them at all, especially if its not OEM sporty... Any tighter there will be transmission fluid to leak out Yukon XL Denali with 6.2... To locate the source of the excess heat, and i can not tighten the nut any.... Thing right away because that stuff will ruin your transmission a moment to sign up carefully the. Browser before proceeding for your advice i may not have as much trouble with it time change... Fluid to leak out better experience, please take a moment to sign up to,! Do that Denali with the radiator to the transmission Jaguar XJ8, 55,000 miles steel line attaches to the via..., disposes of the line had a leak going for a better experience, please take a moment to up. Washer or something that may need replacing inside the radiator still mated with its brass came. Prepared to do a drain and fill figuring it was low on transmission fluid rusted and flaking away while rubber! Out of the cooler line with the KD1 remote transmission oil cooler option van just developed a going... Slip indicator lit up on my way to work display this or other websites correctly are!

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