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05 Chevy Silverado


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Posted

My 05 silverado is throwing a code p0300 itsa 5.3l i just changed the plugs. Some times it runs fine and then it idles rough. when i drive the truck the engine light flashes and then it will just go off. I am having a hard time with this one please help.

Posted

The P0300 is for a random misfire and does not indicate which cylinder it is. If it was a P0302 that would be for #2. There is an intermittent problem with a plug or wire somewhere.

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