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1998 Chevy Beretta rough idle

Tiny
2CP-ARCHIVES
  • MEMBER
  • 1998 CHEVROLET BERETTA
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 95,000 MILES
1998 Chevy Beretta mileage: 95,000. My car is in very good condition; however, it has developed a rough idle upon coming to a complete stop. The tachometer oscillates between 200 Rpms to approximately 1300 Rpms. If I don't even off the idle by giving it a little gas, the engine stalls. How and where do I adjust the idle? Thank you in advance for your help.
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Monday, November 8th, 2010 AT 10:50 PM

1 Reply

Tiny
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  • MEMBER
  • 4,540 POSTS
The idle speed is controlled by the computer. Your car may be ready for a major tune-up including spark plugs, plug wires, distributor cap, rotor, fuel filter and air filter. Also, perform a fuel pump pressure test. Clean fuel injection system including throttle bore, idle speed control motor and passages. If problem still exists, scan computer for trouble codes.
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Monday, November 8th, 2010 AT 10:56 PM

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