Mechanics

CHEVROLET BLAZER SPARK PROBLEM

2001 Chevrolet Blazer • 11,800 miles

Last week or two eng cranks alot before it will start after it has sat for 8 hours or more but after it has started and run warmed up it started up fine until sat again for 8 or more hours after a short trip and then sat for about three hours did not start at all cranks just fine just will not fire up and run it is a 2001 Blazer 4.3 eng 4 wheel drive and has 11800 miles on it
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Guest
December 26, 2012.



How long since a tune-up? Any applicable trouble codes? When the problem is ongoing, have helper crank it while you visually check for spark at the spark plugs. If you have spark everywhere, use a gage and check fuel pressure. Do you have the spider fuel system, that system is noted for problems.

JDL
Dec 26, 2012.