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Ok I have an 04chev Silverado 5.3L,that’s backfiring while on cruise.changed plugs and coil wires and camshaft,also changed crankshaft,and now after putting new wires and plugs it has now started flooding.what is the problem here please??
If you haven’t already, check your timing belt. If your valves are opening at the wrong times, fuel could be getting into your exhaust and combusting too late, causing the backfiring.