Transmission Life Question - Page 3 - 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 10-12-2004, 12:31 PM   #21
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my factory cooler is clogged.. what should I do? I am putting in a small one [don't know the rating], I just know a small one, that I am going to mount somewhere under the car, with a few 120mm fans.. with ducting to grab cold air. Sound like i'm going to run into trouble? I know this is in the 92-99 forum.. I just figured i'd hijack it for the time being.


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Old 10-12-2004, 12:40 PM   #22
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If your trans cooler is clogged, you're going to smoke your trans today. You have no circulation.

Replace it ASAP. By factory cooler, you mean the radiator, right?
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Old 10-12-2004, 01:14 PM   #23
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yuppidy yup. When I first start the car, a little ATF comes out, and I feel pressure on one line, and very little on the other. It could be just me, but I am believing it to be clogged. The car has been like this for several months [when my mom was driving it still], so maybe it isn't clogged. But my FSM didn't say anything about replacing anything if it is clogged. I'm going to re-read that, for some reason I think I may have mis-comprehended it.


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Old 10-12-2004, 01:17 PM   #24
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It could simply be a weak pump in your trans.
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Old 10-12-2004, 01:48 PM   #25
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wouldn't suprise me.. or my crappy fluid is thick.. and when i'm checking it, it is very cold, and not warmed up. If all else fails, it is $35 for the cooler I want.. i'll throw my money at that thing after my rebuild comes through. That, and a really big bottle of seafoam engine, tranny, and penetrating oil..


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Old 10-12-2004, 05:50 PM   #26
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point of clarification...

did 97 SEs come with a tranny cooler from the factory? was it an available option? i'm not sure if i have one... i always thought i did. i have my main cooling fan behind the radiator, then a smaller fan right next to it. i assumed this was a tranny cooler. am i wrong?
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Old 10-12-2004, 05:52 PM   #27
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No auxiliary cooler in 97, especially on an SE. I think 95 was the last year for that? You should have a 2-core radiator for coolant and trans, and also an AC condensor up front. An aux tranny cooler would be installed in front of the radiator.
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Old 10-12-2004, 05:55 PM   #28
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hmmm, i feel dumb. so what are the two fans? and with my mod level do i need to add an auxiliary cooler?
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Old 10-12-2004, 06:00 PM   #29
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Do you have a 4T60E or 4T65E? Have you actually looked at your trans pan to check? If it'* a 4T60E, go ahead with an aux. If not, forget it.

The two fans are for the radiator and AC condenser. They work in concert, two speeds.
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