Any ideal ?? 97 silverado 4.3 vortec shut off after a loud backfire while driving . It cranks over but will not start now. I checked and it has spark .

Asked by May 11, 2015 at 10:09 AM

Question type: Maintenance & Repair

1 Answer

69,405

Run a compression test. The backfire suggests that it jumped timing. If you have low or no compression on all cylinders, it's jumped timing. HTH. -Jim

Best Answer Mark helpful

Your Answer

Shortcuts

Maintenance & Repair Experts

  • #1
    Tom Demyan
    Reputation
    177,670
  • #2
    dandyoun
    Reputation
    94,460
  • #3
    tennisshoes
    Reputation
    77,220
View All

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.