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1991 Toyota Corolla Question: ping when get hot



, 1.6L 4 Cylinder, Manchester, NH, April 11, 2011, 13:33

when it get hot it start to ping, but when u step down on the gas it stop.

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  • Answer #1

    April 19, 2011, 19:52

    I suspect the EGR valve's plugged or faulty causing the ping at part throttle.

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