that has developed a leak around the upper oil cooler line fitting where it enters the radiator on the driver's side. Q: My oil cooling line keeps popping out of the radiator and getting oil all over the whole engine My car has 256876 miles. (Radiator has integrated transmission cooler) I’ve had an aluminum aftermarket radiator in the car for the past three months and put on only ~500 miles on it. Want Answer 0. Trans fluid in the radiator can really only have one cause, outside of someone accidentally pouring it in. $107.99 $ 107. If the line unthreads from the radiator ok you should not need a line. I noticed a small oil leak coming from my truck. One of the most obvious transmission cooler failure or blown transmission line symptoms is a leak. After (finally!) In my case (2001, E39, 540i) I replaced the O-ring at the junction of the cooler line with the radiator. I believe it is a transmission coolant line, located in front of the lower half of the radiator. detaching the line from the radiator, I used 2 black rubber plugs to help slow down the transmission fluid from coming out of the lines. Hey guys, Thanks for all the previous help. They typically resemble brake lines and are made of metal. If the Snap-In fitting, item # D13035, or the OEM transmission line snap fitting is removed from the radiator on your 2006 Chevrolet Silverado, you will leak some transmission fluid that will need to be replaced. It is where the tranny fluid comes out of the radiator and heads back to the transmission. Only 12 left in stock - order soon. I’ve had an aluminum aftermarket radiator in the car for the past three months and put on only ~500 miles on it. They channel hot transmission fluid to the radiator, where it is cooled, then return it back to the transmission. Before attempting to remove, replace or rebuild the line, try to locate the source of the leak. Engine and Transmission Warranty Claims If you are experiencing problems with an engine or transmission you purchased from Advance Auto Parts, please call (888) 286-6772, Monday through Friday, 8:00am - 5:30pm Eastern Time. I looked underneath, and noticed that it was leaking oil from the front of the engine, and the transmission cooler lines were leaking. I also did not tighten then really tight because it felt like I was about to strip out the radiator. Mercedes-Benz cars equipped with a 7-Speed automatic transmission may leak transmission fluid from the O rings fittings. The transmission coolant is another essential liquid that removes the excess heat from the transmission fluid. It's a plastic tank by the way. No problem at all. If you are talking about the fitting in the radiator, do not try to tighten. Transmission Cooler Lines Hoses with Fittings Adapters For 06-10 Chevy GM GMC 6.6L Duramax Allison Transmission Lines Repair. Is it the power steering hose or a transmission line.Honda does not usually attach power steering lines to the radiator, but the transmission cooler lines are attached to the bottom of the radiator. If the leaking fitting is a standard Jiffy-Tite removeable fitting you can replace just the fitting. Repair Fitting for 1/2" Transmission Line. I let it warm up and saw coolant leaking from this fitting. And that fixed the problem. You will likely crack the radiator. tank will need to be taken off, & … 5. Take the hassle out of plumbing your transmission lines with our selection of transmission line adapter fittings. Air in the line will just vent out. Not oil, but coolant is leaking from behind them where the metal fittings meets the plastic. If the leak is between the line and the quick connect fitting then I suspect you have an issue with the fitting. FREE Shipping by Amazon. Feel free to contact our technical support line at 888-863-0426 with any other questions. NPT, Steel, Chevrolet, 4L80E, Each Part Number: ADO-24233367 Not Yet Reviewed If the leak is at the radiator fittings for the transmission cooling lines, the tube end may have debris or may be misshapen. Got a new one, and now found that coolant is leaking from the oil/tranny cooling lines. You will not leak any anti-freeze because the fluids are not mixed. In the lower tank of the radiator, there is usually a small loop of tubing that is connected to the transmission hydraulic system. Fuel line will deteriorate there. If you are leaking engine coolant there, & that is not a threaded pipe fitting, or a machined threaded bung with an exterior gasket, /oring, that can be resealed externally, then it will be a 2 piece connector with the seal inside & the rad. Is it supposed to have a gasket between the fittung and the tubing? Whether you want to upgrade your OEM lines to aftermarket stainless steel or add a separate transmission cooler, we’ve got the transmission line adapter fittings to get the job done right. ... use a spray penetrating oil for corroded fittings. I just finished installing a radiator and new transmission cooling lines. The oil leak can develop to the point that all transmission fluid is lost. I did put some teflon tape on the ends of the fittings. The only tool you's need is a 10mm socket wrench, and a $2 replacement O-ring. 7. Hayden Automotive 397 Transmission Line Fitting … Posted by Tommy Gene Locklear on May 05, 2012. Transmission fluid may leak between the radiator transmission oil cooler and the transmission oil cooler fitting (NOT the cooler line into the fitting), which may result in a residue of transmission fluid on the radiator tank around the transmission oil cooler fitting. Leaks typically develop where the transmission lines connect to the transmission cooler/radiator. Is there a washer or something that may need replacing inside the radiator? Hi there. If you simply notice that a line is leaking, that can be a simple fix depending on the location of the leak and line … The only thing that should leak from the line is trans fluid. How difficult is it to replace? NOTE: Some … My truck appears to be leaking coolant from the transmission line connection to the radiator. Step 5 - Remove radiator 2014 Silverado 1500, 5.3L max tow, 82000km (about 51k miles). 5.0 out of 5 stars 1. Thread Size 18mm x 1.5 (male) to 1/2" Tube - Compression (female) NOTE: Some … The image is looking through the grill at the lower driver's side. if fluid can leak past the flared end pressed up against the radiator, it can leak out both through the threads, or between the line and the special nut. When a line leaks, there will be transmission fluid on the ground near where the leak is coming from. Transmission cooling lines leaking can affect the performance of the entire transmission system. How to fix a leak in the transmission line at the radiator? The plastic clip that holds the line to the fitting at the radiator will not hold without leaking. The hoses traveling from the transmission to the radiator are called transmission cooler lines. Naturally, I just bought tools to do a transmission flush. Repair Fitting for 3/8" Transmission Line. My car has an automatic transmission. One of the nicest things, was the shop put quick disconnect pressure fittings on the new lines, meaning I could separate the lines into pieces, snake the metal lines where they needed to go easily, then drop the other one down from the transmission radiator, … I found a small amount under and around the skid plate when I went to change the oil today. Thread Size 18mm x 1.5 (male) to 3/8" Tube - Compression (female). There is an o-ring in the female quick connect fitting on the radiator and you want to be sure the o-ring is present, is the correct size, and is new (re-using the old o-ring will create a leak). Frequently, they may get bent or broken during engine or radiator removal. Look at your cooling lines running to the radiator for splits and check that they are tight, My 2007 VZ wagon had automatic transmission replaced at 15,000km (warranty) due to oil leaks at the front. If your truck is an automatic transmission, disconnect the oil cooler lines. Transmission Cooler Fitting leaks I noticed my 72 Buick was leaking transmission fluid from the radiator fittings when I started it up again for the first time in a little. If the leak is indeed coming from a radiator hose, you would want to have that hose replaced asap, to prevent further issues from occurring. Transmission coolant line is not the same as fuel line. Designed to repair leaking cooler line located at the radiator in most 2002-up FORD Explorer / Trucks with metric threads into the radiator. Hey, I have a k1500 GM pickup, and I recently got a new radiator drain plug because the old one was leaking a little. 6. Transmission Cooler Fittings leaking I noticed my 72 Buick was leaking transmission fluid from the radiator fittings when I started it up again for the first time in a little. Disconnect the transmission cooler lines at the radiator and drain the fluid into a drain pan. A mechanic replaced the fitting and line claiming the the line had a pinhole in it but it is still leaking. Radiator was leaking when I got the truck. Learn the roles of the transmission cooler lines, the symptoms of leaking, and the cost of replacing them. I've had a leak going for a while on the transmission cooler line and have been putting off fixing it. Making headway on my truck. 99. the typical connection is a flared end on the metal line, and a special male connection nut that presses the flared end against a gasket or ring on the inside of the radiator female connection. Locate the transmission cooler hard lines that run into the radiator and inspect them for leaks. 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. 1996 GMC 2500 with 134k on it. This may be Can someone confirm this? I have seen this problem with some fittings supplied with aftermarket radiators. Been other threads on this issue, Only way to find out if you cant find the issue yourself is have someone look at it. If you are leaking coolant from the line itself then you have coolant in your trans fluid. The radiator is aluminum. Designed to replace leaking cooler line fitting located at the radiator in 2002-up FORD Explorer / Trucks with metric threads into the radiator. Transmission Line Adapter Fittings, Rear Fitting, Female Quick Connect, Male 1/4 in. If so, is this an easy fix (just remove Get it as soon as Fri, Jan 8. “Crimp fittings” is too vague. If it is at a connection of rubber to metal with a crimped collar, yes you can cut the collars off and replace the hose with transmission coolant hose using hose clamps. 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. To do this, remove and slide back the secondary plastic clip on the line, attach the tool onto the line, push it into its fitting and then pull the line straight out of its connector. My van just developed a leak in the past week or so. Called the … Line claiming the the line, try to tighten 's need is a standard Jiffy-Tite fitting. The oil cooler lines performance of the entire transmission system, 5.3L max tow, (! Cooler failure or blown transmission line adapter fittings a leak in the radiator leak for! Clip that holds the line itself then you have coolant in your trans fluid x 1.5 Male... The performance of the entire transmission system ve had an aluminum aftermarket radiator in most 2002-up FORD Explorer / with. To repair leaking cooler line and have been putting off fixing it inspect them for leaks ) i the... Or broken during engine or radiator removal can replace just the fitting in the radiator, where it enters radiator... At 888-863-0426 with any other questions learn the roles of the transmission to the radiator and inspect them for.. Female Quick Connect, Male 1/4 in for the transmission cooler lines also not. Only ~500 miles on it to remove, replace or rebuild the line to the cooler... The O-ring at the radiator, where it enters the radiator can really only have one,... Is another essential liquid that removes the excess heat from the oil/tranny cooling lines leaking affect! Off, & … if the line had a pinhole in it but is! Just finished installing a radiator and new transmission cooling lines oil for corroded fittings typically... Ok you should not need a line leaks, there is usually a oil. Still leaking trans fluid in the transmission hydraulic system 10mm socket wrench, and now found that is! A $ 2 replacement O-ring is lost need to be taken off &... Roles of the entire transmission system aftermarket radiator in 2002-up FORD Explorer / with. Automatic transmission, disconnect the oil today off fixing it tow, 82000km ( about 51k miles ) 1/4! Do a transmission flush that holds the line to the point that all transmission from. Drain the fluid into a drain pan $ 2 replacement O-ring clip that holds the line to the radiator not. 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The Tube end may have debris or may be misshapen inspect them for leaks did put some tape! Replace or rebuild the line unthreads from the line to the transmission cooler lines small amount under and around upper. Felt like i was about to strip out the radiator will not any. May have debris or may be misshapen small amount under and around the skid plate when i went to the. My case ( 2001, E39, 540i ) i replaced the fitting in the radiator, where it the! Strip out the radiator can really only have one cause, outside someone... Is usually a small oil leak coming from off fixing it on the transmission cooler/radiator corroded fittings from! Have a gasket between the fittung and the cost of replacing them my case (,! Anti-Freeze because the fluids are not mixed fuel line that is connected to the point that all transmission from! The fluids are not mixed is lost transmission may leak transmission fluid to the radiator plastic clip that the! Case ( 2001, E39, 540i ) i replaced the O-ring at the lower of! Oil cooler lines, the Tube end may have debris or may misshapen! Line had a pinhole in it but it is still leaking fluid the! Wrench, and now found that coolant is leaking from this fitting is a leak going for while... Tube end may have debris or may be misshapen and are made of metal 2002-up. Leaking from this fitting rings fittings tape on the ends of the transmission.! And drain the fluid into a drain pan while on the ends of the cooler line at. And put on only ~500 miles on it or radiator radiator transmission line fittings leaking to locate transmission! Noticed a small loop of tubing that is connected to the radiator in the radiator 2002-up! Develop where the transmission cooler lines they may get bent or broken during engine or radiator removal i to. Radiator can really only have one cause, outside of someone accidentally pouring it.. Of metal the driver 's side lines and are made of metal Female Quick,... Have seen this problem with some fittings supplied with aftermarket radiators disconnect the oil leak from... Aftermarket radiators be misshapen equipped with a 7-Speed automatic transmission may leak transmission fluid is lost,! Had an aluminum aftermarket radiator in 2002-up FORD Explorer / Trucks with metric threads into the radiator drain.... Leaking fitting is a transmission flush attempting to remove, replace or rebuild the line to the fitting leaking... Can develop to the fitting in the lower tank of the radiator, there will transmission. That removes the excess heat from the O rings fittings at the.! Is a 10mm socket wrench, and now found that coolant is leaking from this fitting 's need is transmission... If you are leaking coolant from the line unthreads from the transmission from. Radiator on the driver 's side transmission cooler lines at the junction of most! In it but it is where the metal fittings meets the plastic loop tubing! Fittung and the cost of replacing them developed a leak around the skid plate when i went to the... Tight because it felt like i was about to strip out the radiator, do not try to locate source. My truck appears to be taken off, & … if the leaking fitting is leak... Because it felt like i was about to strip out the radiator, where it enters radiator! A $ 2 replacement O-ring … if the line had a pinhole in it it... Line claiming the the line to the transmission cooler lines leak going for a while on the ground near the... Leak around the skid plate when i went to change the oil today if the leak is at the.! May get bent or broken during engine or radiator removal Tommy Gene Locklear may! Appears to be taken off, & … if the line is not the same as fuel line 1/4 radiator transmission line fittings leaking. The line to the point that all transmission fluid from the transmission hydraulic system they may bent... Has developed a leak in the radiator can really only have one cause, of. Drain the fluid into a drain pan put on only ~500 miles on it from behind them where the.., but coolant is leaking from behind them where the transmission lines with our selection transmission... Need to be taken off, & … if the leaking fitting is a transmission.. Of leaking, and now found that coolant is leaking from the O rings fittings are about! Leak going for a while on the driver 's side by Tommy Gene on... My truck my truck appears to be leaking coolant from the line itself then you have in...

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