GMC Sierra C3 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your GMC Sierra C3
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GMC Sierra C3 ProblemsReplace spark plugs at 80,000 miles and inspect ignition wires
Our technicians recommend replacing spark plugs at 80,000 miles. At the same time, the spark plug wires should be checked and if any hot spots are found, the ignition wire set should also be replaced. On the V8 engines, our technicians recommend having the coil packs checked as well.
GMC Sierra C3 Questionsstock exhaust (1 answer)
If there is anyone out there who has a stock exhaust system and could send me some pic's. I got the truck and was going to put an exhaust on it and the original owner cut it all up and welded a very bad job. This would be very heplful.
What is making my driver and passenger side floor boards wet?
When turning at low speed, as in a parking lot, the front seems to "crab".