WHY DOES MY CAR DO THESE THINGS???? PLEASE HELP - 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 03-09-2004, 11:45 PM   #1
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Default WHY DOES MY CAR DO THESE THINGS???? PLEASE HELP

First Problem: Pull up to light and then the engine idles down and as I sit there the idle becomes lower and gets to the point like the engine is starving for air or fuel. Then the voltage drops to like 10 or so then the computer kick in and compensates for the problem. Then idle goes to normal then after about a min it does it again. What are some things that I could check for that might make this problem go away. ALSO I PULLED THE INJECTOR'* AND FLOW MACHED THEM, CLEAN THEM IN AN ULTRASONIC CLEANER AND BACK FLUSHED THEM.

Second Problem: Driving under 10mph'* or stopped. When I move the wheel back and forth I get a clunking sound from the front. Would this be the inner tie rods?????
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Old 03-09-2004, 11:49 PM   #2
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The clunking noise from moving the wheel back and forth may be the upper bearing plate I have been told, if I'm not mistaken. But I'd check your tie rods to be safe anyway. I'm not too sure on your first problem.
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Old 03-09-2004, 11:54 PM   #3
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Quote:
Originally Posted by bonnie94sse
The clunking noise from moving the wheel back and forth may be the upper bearing plate I have been told, if I'm not mistaken. But I'd check your tie rods to be safe anyway. I'm not too sure on your first problem.
Thanks for the quick feedback.
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Old 03-10-2004, 12:13 AM   #4
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Were your subs pounding away when you got to the stoplight idling?

If your amps are sucking the voltage, your car will stumble if it'* too much pulled, and lower the RPMS because of misfires, and then the alt drops, and then more misfires.
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Old 03-10-2004, 12:28 AM   #5
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Quote:
Originally Posted by BonneMeMN
Were your subs pounding away when you got to the stoplight idling?

If your amps are sucking the voltage, your car will stumble if it'* too much pulled, and lower the RPMS because of misfires, and then the alt drops, and then more misfires.

Nope subs where out of my car when this started
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Old 03-10-2004, 03:02 AM   #6
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Buy a new TB gasket. Remove the TB from the car, and then remove the maf screen from it. Clean the TB thoroughly with TB (intake-safe) cleaner and a toothbrush. Let it dry, then put it back together.

Pull codes and make sure you don't have an IAC issue.
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Old 03-10-2004, 06:52 AM   #7
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Lazy alternator?
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Old 03-10-2004, 12:47 PM   #8
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My lazy alternator didn't cause symptoms like that, but I suppose it could. What are your voltages?

I'd still go after the TB. Mine looked like a tarpit after 60k.
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Old 03-10-2004, 11:08 PM   #9
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Quote:
Originally Posted by willwren
Buy a new TB gasket. Remove the TB from the car, and then remove the maf screen from it. Clean the TB thoroughly with TB (intake-safe) cleaner and a toothbrush. Let it dry, then put it back together.

Pull codes and make sure you don't have an IAC issue.
I had cleaned the TB and upper intake and that made a big performance jump for me. Also my alternator i think is the problem because when i turn on my blower motor it goes down to like 11 or 12 volts on a tech 2.
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Old 03-11-2004, 12:10 AM   #10
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Hmmm that is weird. I don't think an alternator could cause idle issues like that, but of course none of us are there to witness it either I'd agree with the IAC replacement anyways, those little guys can get pretty crusty after lots of use.
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