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Misfires and struggles when trying to accelerate

Tiny
SCOTTY555
  • MEMBER
  • 2005 CHEVROLET
  • 4.3L
  • V6
  • 2WD
  • MANUAL
  • 210,000 MILES
The truck it accelerates but only lightly touching the pedal when I try to accelerate faster it misfires and struggles to do so often losing power cutting in and out like it is starving for fuel.
Saturday, April 8th, 2017 AT 4:22 PM

1 Reply

Tiny
STEVE W.
  • MECHANIC
  • 13,498 POSTS
Well as a starting point I would have a shop do a scan on it to see if it is setting any codes, then do a fuel pressure test and check for any vacuum leaks as a lean condition could cause both problems. You can usually rent/borrow a pressure test kit from a parts store to run the test.

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge

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Sunday, April 9th, 2017 AT 8:07 AM

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