Have 1996 gmc pickup sierra 2500 4x4, 5.7 liter. Trouble code p1345. Mechanic replaced distributor, crankshaft sensor, plug wires, coil, battery. Same problem. Misfires badly when rainy/humid. Run better after engine is hot or parked hot for awhile.
have the same problem?
Monday, November 21st, 2011 AT 9:55 PM