can a bad feul pump make your car idle low

Asked by Mar 29, 2014 at 12:10 PM about the 1994 Buick Roadmaster 4 Dr STD Sedan

Question type: Maintenance & Repair

6 Answers

237,185

Usually not. Fuel pump is either on or off. A dirty throttle body might be your issue. Hard to tell without seeing the car. Any lights on the dash?

No lights cumin on jus idling low and wen I put da a/c on it gets weaker

237,185

Try cleaning the throttle body of carbon if you haven't already. Look on www.youtube.com on how to do this.

Cleaned it already

237,185

Check on the idle control sensor? EGR? PCV?

I just changed all that new

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