Question about 2004 Chevrolet TrailBlazer

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Wont turn over wont boost ap hand goes to 0 - 2004 Chevrolet TrailBlazer

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Chevy Trailblazers are noted for the ECM (or PCM) going bad. The symptoms are no crank, and a corrupt memory code error. Plug in a scanner and check for codes related to ECM failure. This is usually in a cold climate. Warm the ECM with a hair dryer and it will start if that is the problem. The ECM sends a crank signal to the starter relay to activate the starter.

Posted on Apr 19, 2014

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With limited info I would say starter is at fault. That would would account for no boost from outside source and when turn key the volt meter goes to zero.

Posted on Apr 19, 2014

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