It is running really rough like it's misfiring.
Jan 22, 2020 at 2:02 PM
Running rough
1992 PONTIAC FIREBIRD
TONI PERRY
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Is the check engine light on or flashing? If there are no codes then we need to check for vacuum leaks.
Does it only run rough when idling or at other times? Have you performed any repairs to this point?
https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge
https://www.2carpros.com/articles/engine-misfires-or-runs-rough
Does it only run rough when idling or at other times? Have you performed any repairs to this point?
https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge
https://www.2carpros.com/articles/engine-misfires-or-runs-rough
Jan 22, 2020 at 6:27 PM