Question about 2000 GMC Sierra
My 2000 GMC Sierra 4.3 litre won't start after sitting for 8 hours and it has rained. I've had all the electrical system checked and replaced the crankshaft sensor. To no avail, I need some help. Any suggestions?
GM has a factory recall on the 4.3L engine from 2001 and newer models for this fault. My 2000 Sierra with the same engine had the same fault. I replaced the plug wires, Cap rotor, enlarged the holes at the base of the distributor housing and the problem just kept reappearing. One article I read (by Larry Hammer an automotive expert) suggest that on a high mileage vehicle such as mine fumes from the crankcase would come-up around the distributor shaft and contaminate the distributor cap and rotor. I removed the entire distributor housing from the truck. I removed the distributor shaft from the housing, the shaft was completely dry ie no fumes. Regardless I pumped the distributor housing full of grease, I pushed the shaft down through the house and through the eight to ten inches of grease. There was no way any fumes would go up through the housing. I put the distributor back in the truck and the fault re-appeared about one moth later. I removed the cap cleaned it with Isopronal alcohol then coated the inside of the cap with di-electric grease, everthing except the brass contacts. I have been driving the truck for over a year now without incident. Peter, Halifax Canada.
Posted on Dec 23, 2008
Has the head gasket got a leak?
Posted on Sep 14, 2008
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Posted on Jan 02, 2017
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