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I have a 1996 GMC Sierra The transmission cooler line that goes from the bottom driver side of Cooler to back of transmission is it pressure or return line
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Probably transmission cooler lines. Could be engine oil cooler lines. Been a while since I seen one of these. They do go to the radiator or cooler in front of the radiator. You'll have to crawl under it and see where the go. Transmission or oil filter. Neither is a fun job. I definitely wouldn't do this on the ground. You can not cut the lines to get them out. You need to watch how you get them out. One first then the next. They have to go back the same way. Most older ones come out threw the back. You have to twist and turn them to get them out and in(pay attention to this also). You can bend the lines some, Just don't be extreme with it.
if you get under the car on the driver side were the oil filter is and look were the filter screw onto the motor,if you see 2 large lines coming from the plate that the filter screws onto going to the front of the motor and attach to the lower rad then you have an engine oil cooler in the radiator.there will be lines that come from the transmission to the radiator that are considerably smaller.
A500 & A518 Overdrive Automatics (and the 904, 727 and other variants) run the Transmission Cooler Lines out of the Left side of the Transmission, near the Shifter Linkage & Kickdown linkage.
The lines then run along the side of the transmission, along the side of the engine oil pan, to the bottom tank of the radiator (or external cooler, if the truck had an external cooler installed).
Generally speaking ... oil goes in hot and comes out colt ... heat rises ... while I an not familiar with your particular car, my guess would be that the hot oil goes in the top and is cooled as it flows down through the cooler and returns to the transmission via the bottom line.
The trans cooler is in one of the radiator tanks.All automatics have this.Some vehicles with the bigger motors and transmissions will also have a separate cooler.Some people will install a separate cooler in there vehicles when they do a lot of hauling or trailering.Hope this helps.Good luck.
there should be 1 nut and stud holding the lines to the housing. I would suggest replacing the upper o-ring for the oil filter adapter at the same time. The oil cooler hoses are also prone to leak, if so, you want to replace evreything while you are there.
Its fairly easy, you dont have to replace the fittings at the cooler. if they are leaking up at the cooler, it needs to be replaced, but if not, its just simple line to line, not too long of a process
please rate well! hope this gives you the info you needed!
PRESSURE LINES HAVE FITTINGS, RETURN LINES CAN USE HOSE CLAMPS,ALSO YOU ARE USING A TRANS. COOLER, YOU CAN ELIMINATE THE RAD. FOR COOLING TRANS. ALSO THIS WILL HELP YOUR COOLING SYS, DUE TO A LOT LESS HEAT GENERATED BY TRANS FLUID.IF THIS IS NOT A GOOD HELP, TRY PUTING COOLER LINES IN TWO BUCKETS. START ENG.PUT IN GEAR, SO THE PUMP CAN OPERATE, PLS,MAKE A VERY SHORT PERIOD. HELPER WOULD BE HANDY, ALSO RETAIN LINES TO CONTAINERS, DUE PRESSURE.
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