1999 - 2006 (GMT800) Section for all discussion related to the 1999-2006 Chevrolet and GMC trucks.

01 - no crank no power in cab

Old Jan 24, 2025 | 11:29 AM
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Default 01 - no crank no power in cab

I have a 2001 Silverado 1500 with 5.3 that will lose all electrical power when the key is turned to start. I get a funky clicking sound from the starter and then all electrical power disappers... dash, radio, lights, everthing goes dead. I also have intermittent power, so far new battery and have checked the cable and fuses and all are good. When I do have power and jump the starter relay i get the same clunk and all power vanishes again. I can undo the battery connection and reconnect and sometime power comes right back some times it might take a few minutes... is this possibly a bad starter or starter solenoid? Would that cause loss of all electrical power?

I am stumped on this one.. any ideas?
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