Mechanics

GMC VAN SPARK PROBLEM

1996 GMC Van • 162,000 miles

Have code miss fire number 7 replaced plugs wires distributer cap and ingnition coil still miss fire no 7 please help
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Dons87
January 25, 2013.



Did you visually check for spark at the spark plugs? Any driveability issues? Use a gage and check fuel pressure. Check fuel injector. Just about anything can cause a misfire. Spark-- fuel-- compression.

JDL
Jan 25, 2013.