1989 firebird with a 350.

Asked by Nightrider65 Nov 18, 2016 at 03:21 PM about the 1989 Pontiac Firebird STD

Question type: General

Runs rough when it runs for a few
minutes.changed all relays and intake manafold
gaskets and most sensors.what do i do now?

3 Answers
189,415

Paul answered 7 years ago

faulty IAC and replace the fuel filter as well..

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3,475

Paul answered 7 years ago

check all your plug wires for the right firing order & if they are on good?

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