Mechanics

HELP! OUT OF IDEAS!

Chevrolet Other

Hello, Recently my silverado has been giving me some electrical problems. Yesterday, my truck was running fine. It was hot (100 + degrees) and I stopped at the store on my way home from work. When I came out and tried to start it, it only clicked. I got a jump and it started up, so I had the battery tested and replaced it. I also put in a new " in the box" alternator that I had already from a buddy. Truck started up and all seemed OK. Today, when leaving work, same clicking deal. I disconnected the neg bat cable and reconnected it to ensure good contact. Started right up. This continued throughout the day. Also hot BTW. I also noticed that the fuel and temp gauges self check ok when ignition is turned on and work good when running, but when I shut off the truck and remove the key and close the door, as soon as the dome lights go out, the temp and fuel gauges float up, as if they are getting power. When I open the door, they go back to no reading or the rest position. Then, once again, close the door and dome goes out, I hear a click and up the gauges go. They also return to normal if I just simply put the key in the ignition or if I arm the keyless entry. But as soon as it arms and the lights go out, click! Gauges moving up. Fuel gauge shows at 3/4 full when this happens and temp varies. Hope I have given you enough info. Any help would be greatly appreciated. Thanks Oh yea, 2001 silverado, 4x4, Z71, x-cab, 60K, 5.3L, Auto w/push button 4x4.
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Hercules58
July 26, 2006.




Sounds like an ignition switch problem.

Tiny
Demearsjr
Jul 28, 2006.
If you turn the key and hear a click, the ignition switch has activated the relay (the click you hear), so switch is doing it's job as I see it. Your getting no crank. You state that you pull the negative cable and re-install and it (cranks) starts.
I would be suspicious of a bad cable, as that is what your moving and getting a change. Is the cable corroded (green). I've seen cables rotted internally causing this.
When it happens, you need to find where the power is stopping.
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Have you found out what is causing your problem? I have a 99 Z71 doing the same thing. Shut the door dome light goes off gauges go back up. Let me know if you have figured it out. Thanks

Tiny
Huff94
Aug 21, 2006.

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