Trans cooler leaking.. - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 08-19-2004, 02:19 AM   #1
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Default Trans cooler leaking..

I walked out of work tonight and went to my car and noticed a puddle underneath the front of it.. The parking lot is always full of fluid spills, but to be sure it wasn't mine, i popped the hood, and as soon as i grabbed the secondary release under the hood, it felt wet.. I smelled it and sure enough... trans oil :(. So i couldn't find any leaks in the system and the fluid was still full on the stick, so I start the car to pressurize the system and check for leaks and as i walk around front i see it squirting out of the trans cooler in front of the radiator... to say the least, I was not impressed. The only thing I can think of is someone poked something at it because I made it all the way to work and after I come out theres a puddle and its leaking fast when the car is started. I'll have to get a better look at it tomorrow to see the leak I guess. Does anyone know how long this will take to replace? I'll be doing it myself next week probably (good thing I have 2 cars). Are there any aftermarket direct replacements that I should go with? or would a stocker be better? thanks.
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Old 08-19-2004, 02:21 AM   #2
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Aftermarket would be fine.. one of similar size...
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Old 08-20-2004, 06:43 PM   #3
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im picking one up in about a half hour... what should i go with? Light, medium, or heavy duty? I'll probably go with medium, unless someone has a better suggestion. It'* only $34.99 lifetime, so I might as well.
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Old 08-20-2004, 06:56 PM   #4
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You've got the L67. Go heavy duty. You can always block part of it off in the winter. The best choice though would be a thermostatically controlled unit.

Just get one a bit bigger than the stock cooler you're replacing, and make sure it whill physically fit.
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Old 08-22-2004, 04:49 PM   #5
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I ended up buying the Heavy Duty and installed it yesterday, thanks for the input.
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