1989 Olds cutlass 3.1

1998 OLDSMOBILE CUTLASS
61,000 MILES • FWD • AUTOMATIC
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JBJBREED38
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  • 1 POST
check engine light on,code check says #5 miss fireing,changed plugs,wire,and coil.Still #5 missing.plug 5 had black gooy stuff on it-Oil?what next
Apr 9, 2011 at 4:00 PM
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RASMATAZ
  • ✓ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
Check compression and injector for no.5 cylinder
Apr 9, 2011 at 4:06 PM
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PROTECH1980
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  • 901 POSTS
Check compression on suspect cylinder, check for injector pulse at injector, if pulse OK, may have bad injector, swap out injector with another cylinder, see if misfire changes to the other cylinder you swaped it to, then you could suspect bad injector.
Apr 9, 2011 at 4:08 PM
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