Question about 2004 Chevrolet Silverado

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Difficulty starting with loud tick throwing code

Difficulty starting with loud tick. Throwing code P0300 for 2-4 misfiring cyl. Just changed spark plugs w/o new s.p.wires. Did not start until purchased new tank of gas has 136,000 miles

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  • k_robinson_s May 11, 2010

    Had it towed in and changed the spark plug wires and had the oil changed at 2000 miles. It starts fine now but is having the engine opened for bad lifters, hopefully that is all. I had been in sales at the dealership that sold me my the truck with free oil changes for life. I don't think they where changing my filter just topping the oil off. There was a 11/2 inch of sludge in the filter. Of course there is no way to prove the filter was from my truck but they also had no answer for the problems. When I told the G.M. and the service manager they were the only ones to chg the oil I got the "dumb" look. The story here, don't take the free oil and filter changes at dealerships even from friends. Thanks for the help.

  • Lyle D. Rowh May 11, 2010

    Sometimes problems occur after an event, but isn't always related. Have you checked the coil that supplies voltages to # 2 & 4 cylinder?

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Ignition coil is the problem.

Posted on Feb 09, 2010

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