No crank no start

2008 CHEVROLET TRAILBLAZER
282,000 MILES • 4.2L • V6 • 4WD • AUTOMATIC
Avatar
TYRONE MONTGOMERY
  • MEMBER
  • 1 POST
I replaced ignition switch when I turn the key no crank no start but if I go to the starter relay I can bypass it and it'll crank but it still won't start replaced battery ignition switch
Sep 7, 2025 at 2:05 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
Advertisement
Avatar
CANNON1349
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 861 POSTS
Hello,

If you can start the vehicle by jumping the relay then the relay may be bad. You can swap a relay that looks identical and see if the car will start. If it does, then replace that relay.

If the car still does not start then there may be a fuel issue. Can you hear the fuel pump making a whirring noise before starting the vehicle?

William
Sep 7, 2025 at 4:33 PM
Advertisement