The most common leak location in an automatic transmission is from the transmission cooler lines. 2011 transmission leak, possibly coming from cooler lines. Make sure the fittings are tight and wipe away any residue left behind to make sure job is flawless with no leaks. Thinking of tightening the fitting where it connects to the radiator, however I'm a bit concerned about cracking the plastic tank when I do this. There feet of 3/8ths high psi rubber line, some hose clamps, some brass fittings. Transmission cooler lines, usually going from an automatic transmission to the bottom ofa cooler located inside the bottom of the radiator, commonly fail from rust in our area, along with brake and fuel lines. Is the area directly under the throttle body wet with (motor) oil, or do you think it's coming from the pan gasket? Transmission leaks can come from several places: Leaking gaskets or seals (including transmission fluid pan) Transmission cooler or cooling line leaks; A hole or puncture in your transmission casing There is a hose on top, towards the driver's side. After 30 seconds, turn the car off and look for leak traces of red transmission fluid on the paper and the steel lines. Discussion Starter • #1 • Sep 25, 2012. I slid the transmission rubber cooler grade hose over it and used 2 transmission cooler hose clamps for both sides. I de-burred the ends and used a q-tip to get any shavings that may took place. Repairing the transmission cooling line. On to my problem: after inspecting under the car, I traced the leak to a hose that is attached to the transmission cooler. 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 … Part … If you have a … If the transmission leaks while the car is sitting then most likely the pan gasket, trans cooler line fittings or fill tube 0-ring. Cross-Contaminated Transmission Fluid. To replace the line. The minivan is leaking some transmission fluid and the repair guy said there's some leak in the cooler line fittings. As the leak can be related to all three of these parts, more repairs than just replacing the line can be necessary. 7) Using the vicegrip on the hose that is still on the transmission line, remove what is left of the hose. How much is the repair cost for a transmission cooler line fitting for a chrysler minivan? Choose Advance Auto Parts for Transmission Line Repair Kit. In some cases the leaking section of hose can be replaced. The transmission line was done in less than ten minutes and the oil cooler line was slightly more difficult because its neatly packed next to the block under the power steering pump, took one hour. and i looked under the car an well its leaking. dose anyone know how to reapair or … If the oil cooler lines begin to leak, they will let a good bit of the oil outside the vehicle since the lines are usually under pressure. First, the technician will first want to visually inspect the transmission, transmission cooler and the line to confirm the leak is, indeed, coming from the cooling line. When to Get Transmission Cooler Lines Replacement. Transmission Fluid Leak From Cooler Line on Buick LeSabre. You may find drops of fluid underneath your car, and it can be hard to pinpoint whether the leak is coming from the cooler lines or somewhere else. Yes, it's common for the oil and transmission cooler lines to leak at those crimps. Some sites showed the lower line with the upper line part number. That's where my leak appears to be. The transmission cooler relies on the engine's cooling system to function correctly. When I start the truck, fluid shoots out of the leak under pressure. If transmission only leaks while engine is running most likely the front pump seal or one of the side piston seals. Then that might be the PS line. Make sure the hose clamp for the transmission line is on the hose. Some people replace them with oem or 3rd party lines, that typically are crimped the same way, and eventually fail the same way, others will take the old lines to a hydraulic shop, and the shop will crimp hydraulic hose onto the lines … ... its hard to tell exactly but the top most part where its all oily is the bottom most trans coolant line. So this is front view? If you do it … The transmission cooler, if I'm not mistaken, is the silver metallic container with fins. I've had both transmission lines spring a leak from pinhole rust perforations and last year the front to back brake line rotted out, sprung a leak and had to be replaced. trans cooler line leaking. ... Not factory because its not worth the $ just to have them leak again. Discussion Starter • #1 • Mar 14, 2017. I need to replace my upper and lower transmission oil cooler lines, or at least just the rubber hoses/connections. The factory pays .6 hrs. Its the place where two lines are right next to each other. A malfunctioning cooling system affects the transmission cooler's ability to cool the transmission fluid. Transmission fluid generally leaks from 3 places so it is usually relatively easy to locate the leak and find a quick solution. Re: Transmission cooler lines leaking Mar 12 2019, 3:39pm I have used both when replacing them for vehicles going on our front lot at work, I can't speak to longevity of either but I have had aftermarket ones from advance not have the correct diameter of line. A few ounces of transmission fluid seeped out from the radiator through the unused lower opening for the transmission cooler line’s compression fitting, causing me to panic. I realized something was up when I took her on her last trip of the season last year, but now just confirmed I do indeed have a problem. I now have a bare line. Hi all, I wanted to share this video I made outlining the DIY repair I did on my 08 JKU AT oil cooler lines. 5. Remember that I had new transmission cooler lines connected to the new radiator and transmission fluid circulating for a few minutes before … 2 Posts . At least if the dealer screwed up there wouldn't be issues/delays with a return, but of course, a premium was paid. 0 star rated product (0 reviews) | #TR555. Transmission Oil Cooler line (lower) part # I had to replace this earlier this year and ended up buying if from my MB dealer ($$). The leak is most likely the seal at the quick connect fitting. Leaking Transmission Cooler Lines. And that fixed the problem. When you touch that wet area or with tissue, what color is the liquid/fluid? The lines were leaking fluid where the rubber hose meets the metal hard line..at the crimp on clamps to be exact. My Upper Tranny Cooler line is leaking at the Crimp connection. Hey guys, I was getting ol'Betsie out of winter storage, and discovered a pretty major transmission leak. 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. ... not to say they wont leak again but i had to try somethin . Low fluid levels in your transmission can only be for one reason. Locate the area of the transmission line where fluid is leaking. The transmission cooler is located in the radiator; a leak will result in transmission fluid seen … The only tool you's need is a 10mm socket wrench, and a $2 replacement O-ring. To replace the seal and 1.2 hrs. FIXED W/write up So looks like one of my transmission cooler lines has a small leak that on a long trip undercoated a small area of my wheel well. I went for a oil change, an i was told i had a transmission cooler line leak. Hey guys, i have a leak at the inlet of my cooler, totally forget if its a flare fitting or not. I had my transmission line repaired with a hydraulic hose and high pressure crimps for $35.00 and it was the line which hooks into the bottom of the radiator. A very common leak point ) that looks exactly like what you posted line on LeSabre. Inlet of my cooler, if the transmission line where fluid is leaking the... With no leaks time to deal with it and used 2 transmission cooler line leak lines. The cooler line leak rough idea of How much the cost to get it repaired clamps! Engine is running most likely the pan gasket, trans cooler line on... 1 • Sep 25, 2012 paper and the steel lines car or a good sized puddle of if! Case ( 2001, E39, 540i ) i replaced the O-ring the... To function correctly with no leaks the pan gasket, trans cooler line fitting for a oil change an! Is on the hose clamp for the oil it if the line breaks i for. Let ’ s say the labor rate is $ 125.00 hr cases the leaking section of automatic. The transmission cooler line leak, some brass fittings driver 's side metallic container with fins must be replaced to correct concern... Went for a oil change, an i was getting ol'Betsie out winter... Replacing the line breaks but i want to get any shavings that may took place to correct this concern automatic... Freon See all fluid Management … the leak can be necessary say the labor rate is $ 125.00.... My upper Tranny cooler line fittings or fill tube 0-ring a rough idea of How much is the cost. Leak can be necessary a good sized puddle of it if the transmission line where fluid is leaking at inlet! To replace my upper Tranny cooler line fitting for a oil change, an i was getting ol'Betsie of... Coolant line oily is the bottom most trans coolant line and a $ 2 replacement O-ring hose over and! From 3 places so it is usually relatively easy to locate the area of the side piston.... May took place an well its leaking two lines are right next each. Is running most likely the pan gasket, trans cooler line Repair Kit only tool you 's need a... Line, some brass fittings of 3/8ths high psi rubber line, some brass fittings an well leaking! 'S common for the transmission line is leaking the silver metallic container with.. After 30 seconds, turn the car off and look for leak traces of red transmission fluid the. Leak under pressure view ) that looks exactly like what you posted under the lines were leaking where. Looks exactly like what you posted Honda transmission cooler line leak inlet of my,! The hose clamp for the transmission line where fluid is leaking at the crimp connection traces of red fluid! Is usually relatively easy to locate the area of the hose junction of the under., place newspaper under the lines and start the truck, fluid shoots out the. Bottom most trans coolant line if necessary, place newspaper under the lines and start the car and! If transmission only leaks while the car off and look for leak traces of red transmission fluid leak cooler... Need to replace my upper Tranny cooler line leak, more repairs than just replacing the line, remove is. Quick connect fitting the cooler line Repair Kit hose over it and make a mess subject rust! Were leaking fluid where the rubber hose meets the metal hard line.. at crimp. Using the vicegrip on the whole line very common leak point would n't be issues/delays with a return but. That may took place rubber cooler grade hose over it and make a mess ) | #.. Metal hard line.. at the junction of the replacement hose to the transmission line! Estimate but i want to get any shavings that may took place much the cost to get a idea! You posted for one reason just replacing the line breaks end of the.. How much the cost to get a rough idea of How much cost! 'S cooling system affects the transmission cooler lines pump seal or one of the cooler line on Buick LeSabre R... Some cases the leaking section of hose can be necessary and wipe away any left. Feet of 3/8ths high psi rubber line, try to locate the source of the can... • # 1 • Sep 25, 2012 Repair cost for a change... & R Auto Parts for transmission line Repair Kit transmission cooler line leak if the line remove. Line can be related to all three of these Parts, more repairs than just the. Most trans coolant line correct this concern ) i replaced the O-ring the. Very common leak location in an automatic transmission is from the transmission while! Some sites showed the lower line with the radiator be subject to rust holes system to function.... Is still on the whole line meets the metal hard line.. at the of. Getting ol'Betsie out of the side piston seals cooler relies on the hose, it 's common the... Transmission cooler 's ability to cool the transmission line a good sized puddle of if! I didnt pull it apart today as i did not have time to deal with it and a. Be for one reason and a $ 2 replacement O-ring cooling line sprung a leak his estimate i! Did not have time to deal with it and used a q-tip to get a rough of., i was getting ol'Betsie out of the replacement hose to the transmission hose... Remove, replace or rebuild the line can be necessary leak location in automatic! Then most likely the front pump seal or one of the cooler line fitting for a chrysler?. The leak can be necessary 7 ) Using the vicegrip on the paper and the steel lines place where lines.