Misfire in park when gas I pressed

Tiny
JORTIZ2001
  • MEMBER
  • 2003 CHEVROLET SILVERADO
  • 4.3L
  • V6
  • 2WD
  • AUTOMATIC
  • 208,000 MILES
Misfire in park when gas I pressed and held down. What could be wrong? Thanks.
Wednesday, September 1st, 2021 AT 3:18 PM

1 Reply

Tiny
SQM
  • MECHANIC
  • 6,383 POSTS
Hello,

You will typically get misfire due to having faulty spark plugs.
Does it misfire when you accelerate in drive? or only when parked?

https://www.2carpros.com/articles/engine-misfires-or-runs-rough

Usually with a misfire the engine light gets illuminated. Is your engine light on? If you scan for the codes as it can help diagnose the issue.

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Please let me know little bit more information.
Thank you.
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Wednesday, September 1st, 2021 AT 8:59 PM

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