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1998 Pontiac Bonneville Question: engine has a miss, only when car is going up hill



dla28, 3.8L V6, Madison, IN, December 12, 2010, 21:56

I've put plugs,wires, new coil pack, fuel pump and filter, gas tank completely flushed, gas cap, Car went in for service, ran good and still does, until it goes up hill. drove car about a week, after service, check engine light came on, and the miss started.

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