Running rough

Tiny
TONI PERRY
  • MEMBER
  • 1992 PONTIAC FIREBIRD
  • 3.1L
  • 6 CYL
  • 2WD
  • MANUAL
  • 130,000 MILES
It is running really rough like it's misfiring.
Wednesday, January 22nd, 2020 AT 2:02 PM

1 Reply

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
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
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Wednesday, January 22nd, 2020 AT 6:27 PM

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