Question about 1988 Chevrolet C1500

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88 chevy 350 knocking or pinging near front of engine

88 chevy k1500 with 350. Idles fine, runs good no bogging or lack of power, but has a loud knocking/pinging noise at the front of the engine, timming is good, new plugs, wire, cap, rotor...
could it be the timming chain? or would the knock sensor have alot to do with it... im lost
i appreciate all the help i can get
thank you

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  • lukebreton Jun 16, 2009

    actually, i just got back from the gas station, i bought fresh gas, plus octane booster for fun.. no change, checked the egr and all is good, checked timming once more, still no change... i kno its not a serious knock because i just changed the engine, and when it was in the orignal truck it had no knock...

  • Anonymous Mar 20, 2014

    bad knocking sound

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Just for the heck of it, have you tried upiing the gasoline one grade?

Posted on Jun 15, 2009

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