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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 12-01-2010, 03:58 PM   #1
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ok so i was going to work yesterday and suddenly i had no power at first i thought it was a bad coil pack but they all work fine. it will accelerate but only do it well when it is already in the final gears. i had a problem like this when my brakes locked up but i had my front brakes completely replaced so i don't think it would be them again please help im am going to college in January and cant afford to take it to the shop if any one has an idea or could help in any way please do so
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Old 12-01-2010, 04:24 PM   #2
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Sounds like you TCC "Torque Converter Clutch" may be sticking and needs to be replaced. I think there is the wiring harness going into the top of bell housing. I'm not sure how easy this is to replace, but it may be worth taking to a Transmission shop to see what they think
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Old 12-01-2010, 04:25 PM   #3
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Jumped the gun, Check your Fuel Presure Regulator first, this is simple to replace just release the presure before you chenge it out.
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Old 12-01-2010, 04:29 PM   #4
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i went out and checked it i cant get the car to got above 3000 rpm with the pedal floored
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Old 12-01-2010, 04:32 PM   #5
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i will check the fuel pressure regulator thanks for the info
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Old 12-01-2010, 04:37 PM   #6
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How does the car run? Is it fairly smooth? If so, I would check for air filter restrictions. If the air filter is good, then check the catalytic converter <when the car is cold, hit it with a rubber mallet to see if it rattles>. The reason I ask is because if it is ignition related, that usually causes an uneven firing, which will make stuff shake. If it is fuel related, it usually makes the car chug or cough. The only other thing would be perhaps a timing issue, but I think the computer would have figured something out by now and thrown a Service Engine Soon light.
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Old 12-01-2010, 04:53 PM   #7
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Not going over 3000 RPM suggests to me it'* in limp home mode. have the car scanned for any codes. Some codes do not trigger a light.
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Old 12-01-2010, 04:57 PM   #8
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Did they have a limp home mode in '92?
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Old 12-01-2010, 05:03 PM   #9
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You know what? I don't recall. But it sure seems like that'* what is going on. The only other thing I can think of right now is a clogged exhaust.
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Old 12-01-2010, 05:38 PM   #10
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damn that is really what i was afraid of was a bad cat so i was trying to ignore the fact that it could be that and the air filter is brand new. so the cat will rattle if it is bad? hell i may just go ahead and get the magnaflow exhaust if i gotta cut the exhaust to get to the cat
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