My car has an automatic transmission. The only tool you's need is a 10mm socket wrench, and a $2 replacement O-ring. Can someone confirm this? Thread Size 18mm x 1.5 (male) to 3/8" Tube - Compression (female). I have seen this problem with some fittings supplied with aftermarket radiators. tank will need to be taken off, & … Designed to replace leaking cooler line fitting located at the radiator in 2002-up FORD Explorer / Trucks with metric threads into the radiator. 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. Hey, I have a k1500 GM pickup, and I recently got a new radiator drain plug because the old one was leaking a little. 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, … And that fixed the problem. I noticed a small oil leak coming from my truck. that has developed a leak around the upper oil cooler line fitting where it enters the radiator on the driver's side. They typically resemble brake lines and are made of metal. This may be If so, is this an easy fix (just remove Learn the roles of the transmission cooler lines, the symptoms of leaking, and the cost of replacing them. Repair Fitting for 3/8" Transmission Line. 5.0 out of 5 stars 1. 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. I found a small amount under and around the skid plate when I went to change the oil today. 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. If the leak is at the radiator fittings for the transmission cooling lines, the tube end may have debris or may be misshapen. If the leak is between the line and the quick connect fitting then I suspect you have an issue with the fitting. I’ve had an aluminum aftermarket radiator in the car for the past three months and put on only ~500 miles on it. If the line unthreads from the radiator ok you should not need a line. It is where the tranny fluid comes out of the radiator and heads back to the transmission. Posted by Tommy Gene Locklear on May 05, 2012. 2014 Silverado 1500, 5.3L max tow, 82000km (about 51k miles). Radiator was leaking when I got the truck. Transmission coolant line is not the same as fuel line. Hey guys, Thanks for all the previous help. 1996 GMC 2500 with 134k on it. You will not leak any anti-freeze because the fluids are not mixed. Step 5 - Remove radiator Get it as soon as Fri, Jan 8. Disconnect the transmission cooler lines at the radiator and drain the fluid into a drain pan. 7. If your truck is an automatic transmission, disconnect the oil cooler lines. I let it warm up and saw coolant leaking from this fitting. Air in the line will just vent out. The oil leak can develop to the point that all transmission fluid is lost. 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. Been other threads on this issue, Only way to find out if you cant find the issue yourself is have someone look at it. In my case (2001, E39, 540i) I replaced the O-ring at the junction of the cooler line with the radiator. You will likely crack the radiator. Repair Fitting for 1/2" Transmission Line. Is it supposed to have a gasket between the fittung and the tubing? Transmission Cooler Lines Hoses with Fittings Adapters For 06-10 Chevy GM GMC 6.6L Duramax Allison Transmission Lines Repair. The radiator is aluminum. (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. Making headway on my truck. In the lower tank of the radiator, there is usually a small loop of tubing that is connected to the transmission hydraulic system. 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. 99. I did put some teflon tape on the ends of the fittings. Radiator are called transmission cooler lines or rebuild the line is trans fluid the... 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