1996 Chevy Tahoe engine misfire

131,000 MILES • V8 • 2WD • AUTOMATIC
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WILLIAM LABRECQUE
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  • 5 POSTS
my Tahoe has started running rough. when code is read it says misfire on #2 cyl. the thing is, when its cold its ok but right at 180 deg it sets the engine light on
. Ive changed plugs & wires but its still on #2. mechanic says its probably injectors, so I ran cleaner but no help.
Any suggestions from somebody that has had similar problems. I also changed cap & rotor. No change.
Dec 7, 2009 at 12:06 PM
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JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,248 POSTS
Have you checked if the cylender is getting spark? Also, using a noid light, are you getting a pulse from the fuel injector?
Dec 11, 2009 at 12:35 PM
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WILLIAM LABRECQUE
  • MEMBER
  • 5 POSTS
It's a problem that occurrs intermittently and at varying speeds. The only thing that SEEMS to be the same each time is the temp. I cannot check for spark or fuel pulse as I am driving about 40mph when it happens. Any other suggestions?
Jan 19, 2010 at 6:05 AM
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