1995 Buick Regal electrical or fuel

303,000 MILES • 6 CYL • FWD • AUTOMATIC
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SMPOWERBEAR
  • MEMBER
  • 1 POST
I have a problem when I either have the cruise set or regular pedal driving, when I release the gas pedal, or step on brake to disengage the cruise the RMP with quickly drop to 1 or even to 0 and then quickly spike back up to 2.5 or 3. sometimes it has gone to zero and the car has quit and then restarted cause the speed going. But on the same token I have been at a slower speed and it has quit running. When it does this it does restart with no problem. Sometines wihen this happens the service engine light will come on and sometimes it doesn't.
Mar 14, 2009 at 2:47 AM
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JDL
  • ✓Experienced Mechanic
  • 16,098 POSTS
Hello, I'd check trouble codes, I believe your obd1, you can check codes yourself.

I'd check the iac and throttle position sensor, to start.
Mar 14, 2009 at 3:33 AM
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