Chevrolet Repair Questions? Ask a Chevy Mechanic for Answers ASAP
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On the 1998 Chevy Truck K 1500 Truck 4WD V8-5.7L,
BASE TIMING The distributor ignition system has no provision for timing adjustment. The base timing is preset when the engine is manufactured and no adjustment is possible.The distributor may need adjusting to prevent crossfire. It needs the Camshaft Retard Offset Adjustment, which is done with a scan tool.