Question about 2004 Chevrolet TrailBlazer

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I have 2004 chevy trailblaser i change sparpugs but motor shaking a lot whats the ploblem and solution cant enybary help

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You have crossed two of the wires. 5.3 liter is 1 8 7 2 6 5 4 3.....4.2 liter is 1 5 3 6 2 4 ... If they are not crossed double check the spark plug wires for any breaks of bad plug boots and make sure the wires are not touching the minifold this will cause the spark to jump

Posted on Jun 10, 2011


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