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For Impala 2002 34L: Got code 301 misfire cylinder 1 change spark plug plug coil pack ok Motor shaking and hesitate on acceleration what should you do next Thanks?
Wiki User
∙ 18y ago
Verify the plug wires are connected correctly. Look here: http://autorepair.about.com/library/firing_orders/bl-fo-1312.htm It can also be a bad spark plug, or plug wire. A burnt valve or blown head gasket is another possibility. A weak injector on that cylinder is possible. A compression check is in order if the ignition system is found to be OK. This will detect a blown gasket or burnt valve.
Wiki User
∙ 18y ago
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