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.

Is my transmission dying?

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Old 02-17-2005, 12:25 AM
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Default Is my transmission dying?

Oh boy *crosses fngers* doooont be breaking...

Ok, I've noticed a new problem. When I'm stopped at a red light or somethign with foot on brake, i feel the tranny vibrate suddenly a few times now and then while I'm stopped. Only happens in Drive with the brake on. No leaks, n o burning or anything, it just does that....
Old 02-17-2005, 12:37 AM
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Pull your TB off and clean it for starters. Your trans can't make your engine stumble. And while you're in there, change your plugs and wires.
Old 02-17-2005, 08:44 AM
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Whats my TB? What does it stand for?
Old 02-17-2005, 09:38 AM
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Throttle body. Full tuneup, AND remove it for a thorough cleaning with all sensors removed. Clean the IAC seperately, don't touch the TPS, and clean the MAF sensor filaments GENTLY with rubbing alcohol and a Qtip.

Pay particular attention to scrubbing the back of the throttle plate and IAC passage.
Old 02-17-2005, 11:27 AM
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think you might have used a few too many acronyms in there for a newb... so here'* the breakdown:

IAC: Idle air control valve. If you look at the throttle body off of the intake, you'll notice on area that bumps out of the normal round area that air moves through. the do-hicky in there is your idle air control valve. it'* responsible for making sure that the engine gets air when it needs it (when your throttle plate is closed, your engine needs to get air through here).

MAF: mass airflow sensor. This guy is mounted on the top of the throttle body, and is typically rectangular, and held in place with 3 or 4 small bolts. this tells your PCM (powertrain control module) how much air is moving into your motor.

TPS: Throttle position sensor. This guy tells the PCM how open (or closed) your throttle is. if you look where the throttle cables come to the throttle body, follow the axis that they rotate about, and on the other side of the throttle body, you'll find your TPS.

On the other hand, you could just follow the wires that go to your throttle body. there'* three of them, and based on the descriptions above, you should be able to find them easily...
Old 02-17-2005, 12:50 PM
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All the acronyms we may use are in Techinfo.
Old 02-17-2005, 05:08 PM
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I appreciate the comments that were made between this post and my last one, but in the interests of staying on topic and not debating Techinfo'* usefulness, they were deleted.

Nothing personal
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