Question about 2003 Chevrolet Avalanche

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Chevy Avalanche won't start

My Chevy Avalanche won't start. It does not do anything. I've tried to jump it, checked the fuses and switched the relays. Any ideas would be appreciated.

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If you're getting no power at all when you turn the key to start, try disconnecting the battery and then hook it back up. Chevy has had some problems with an ignition relay solenoid that's mounted under the driver's side dash. Disconnecting power could reset the switch....If that seems to be it, a replacement is around $250. at a chevy dlrshp.

Posted on Feb 04, 2009

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Have you done a deap cycle charge on the battery. Also check your battery cables. Are they broken, or need to be changed. Check both all the way to the body of the car and the starter.

Posted on Jan 31, 2009

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Chevy avalanche won't start


another person wrote this, I was trying to find more info for you.

I'm answering my own post so other's may reference. The problem was my Powertrain Control Moudle (PCM) kept blowing out due to a bad fuel pump.

so if you are inclined to check, your fuel pump can still work and not work correctly. So this needs to be tested under correct measures. More than likely on the truck. But I would locate the PCM and check to see if its blown.

If I find anything else I will forward it to you.

tepfy

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