05 Impala 3.4 upon accellaration it bucks and jumps ,new TPS MAP Fuel pump and filter Ignition switch and still does it and also stops running at times , do you have any suggestions?
Cars & Trucks - Chevrolet - Impala - 2005 Chevrolet Impala
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Answers & Comments
Probably bad spark plugs, wires or ignition coil. Also cylinder number one spark plug is prone to cracking. If you cant isolate a cylinder pull each plug out and inspect for carbon tracking or plugs worn. Recommend using AC Delco original equipment replacement spark plugs.