Another rough idle problem - 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 03-04-2004, 10:18 AM   #1
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Default Another rough idle problem

Hello

I'm not sure how normal this is or not

My 97 has 93k on it.

has always idled kinda rough. You can feel it shake, and it seems like one moment its going to stall out, the next it seems ok.

So far I've replaced the following on this car:

Intake manifold/gasket
Alternator x2
Fuel Pump/Filter
Spark Plugs/wires x 2
PCV valve/ tube
Coolant/thermostat/hoses etc

Where do I go from here? I'll be as specific with info as I can...
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Old 03-04-2004, 02:51 PM   #2
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Are you getting a check engine light? If so, what codes is it throwing?

Have you ever changed the oxygen sensor on the car?
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Old 03-04-2004, 02:52 PM   #3
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Did this start BEFORE or AFTER you sprayed carb cleaner in the TB?
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