Mechanics

CHEVROLET SILVERADO SPARK PROBLEM

2001 Chevrolet Silverado • 250,000 miles

What is a PO300 or PO301 random misfire code?
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Guest
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.

JDL
Jan 4, 2013.


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