2001 Chevrolet Silverado Repair Question
Topics covered: Spark, Engine, Compression.
Mileage: 250,000 miles.
Mileage: 250,000 miles.
Asked on January 4, 2013
Chevrolet Silverado Spark Problem
What is a PO300 or PO301 random misfire code?
Asked by (pending member)Answer
Replied on January 4, 2013
What is engine litre size? How long since overall tune-up? Check for misfire on cylinder # 1. Visually check for spark at the spark plug, engine cranking. If you have good spark, use a gage and check fuel pressure. You may have to check fuel injector, also. Check cylinder compression.
