Transmission Issues... - 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 08-18-2010, 11:47 PM   #1
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Unhappy Transmission Issues...

Uh oh...
I came to a stop sign today and when it came time to go, Bonnie just wouldn't go. I let off the gas and tried again and she went along like normal. Later, the same thing happened (only in a more busy intersection).

Did some stop-and-go tests and found that this only happens when taking off from a stop with moderate to heavy acceleration. The trans fluid level is good, nice and red still. Filter was changed ~6,000 miles ago. Didn't find any leaks in the lines. I'm going to have Autozone scan for trans codes tomorrow and throw some Lucas in it.

If the lucas doesn't help... am I looking at a rebuild / new car? I only paid $950 for the car and I'm not willing to spend more than $1000 on a new transmission. I'd rather just go to the auction and pick up a new car for cheap.
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Old 08-19-2010, 12:33 AM   #2
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Post up the codes and we will go from there. At this point it'* hard to say what'* wrong.
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Old 08-19-2010, 08:00 AM   #3
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Please drive it a bit and make sure it'* up to temp when you go to scan it. Most trans codes will reset when things are good in the trans. This keeps it working as well as possible, but makes diagnosis a bit tougher.

I'm thinking a valve body/soleniod issue. If it'* a soleniod, that'* a relatively easy fix once you get the side cover off.
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Old 08-19-2010, 11:12 AM   #4
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Th eguy at AutoZone was . He told me that he couldn't scan the car unless the engine light was on. I made him plug it in anyways and we found no codes.

Put 3/4 of a bottle of Lucas in it, and it seems to be working fine.
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Old 08-19-2010, 09:56 PM   #5
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Some codes are stored, some are not. Some transmission codes are stored and never trip a light.
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Old 08-20-2010, 07:16 AM   #6
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Add an extra quart of fluid to the trans and report back.

Usually when you have a "neutral out @ a stoplight" condition, it is usually an internal problem if the fluid is full. You could drive around with a presuure gauge attatched and if the pressure is OK when it happens, you have an internal problem.
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Old 08-20-2010, 09:22 AM   #7
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There'* one thing I'm curious about. My ScanGauge reads the trans temp, and I'm wondering what the normal operating temps are for this transmission?

Usually it gets up to 180 on an average trip, but I've seen it up to almost 210 before.
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Old 08-20-2010, 09:47 AM   #8
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The unofficial rule of thumb on trans temp is ambient temp +125 degrees.

180 is great.
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