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Running Rough

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Old 03-08-2012, 03:26 PM
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Default Running Rough
I have a 2003 Chevy Trailblazer that is skipping & sputtering. I had the plugs & plug wires changed and it is now worse! Any suggestions?
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Old 03-08-2012, 05:14 PM
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Test the coil? Check the injectors any, pull any codes?
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Old 03-09-2012, 08:10 AM
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open the throttle body butterfly so you can see if there is a bunch of carbon build up in the throttle body and on the butterfly
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Old 03-09-2012, 09:52 AM
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Have it scanned for trouble codes. Is the CEL flashing?
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