No crank no start

2008 CHEVROLET TRAILBLAZER
282,000 MILES • 4.2L • V6 • 4WD • AUTOMATIC
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TYRONE MONTGOMERY
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  • 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
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CANNON1349
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  • 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