HEI/Est Ignition System: Spark
Check for spark at coil wire and at each spark plug wire using a high output spark tester. Check spark plug wire resistance on suspect wires. Resistance should be no greater than 7000 ohms per foot.
Check for spark at coil wire and at each spark plug wire using a high output spark tester. Check spark plug wire resistance on suspect wires. Resistance should be no greater than 7000 ohms per foot.