Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
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Verify that both Red wires at the ignition switch have full battery voltage. Verify that the ignition switch is powering the Dark Green wire with key on and Yellow wire with the key in the start position and if not replace ignition switch. It sounds like the switch is failing to allow voltage to cross it causing no power to fuel pump. Let me know if you have questions, thanks.
we tested all the wires and they all have power. what should i try next?
its not clicking
I just recently purchased a 2004 Tahoe with 155000 miles