1997 gmc Vortec v6 misses bucks

1997 GMC SIERRA
220,000 MILES
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LYLEBUS
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  • 3 POSTS
acts like points bad on old car.
Really bad when cold.
changed plugs and wires.
Gives random misfire code.
Mar 26, 2012 at 7:52 PM
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DRCRANKNWRENCH
  • CAR REPAIR CONTRIBUTOR
  • 3,380 POSTS
You should have the fuel pressure checked.
Mar 26, 2012 at 7:53 PM
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RASMATAZ
  • CAR REPAIR CONTRIBUTOR
  • 75,992 POSTS
Could be bad fuel and vacuum leak, normally will cause the random misfire P0300
Mar 26, 2012 at 8:00 PM
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LYLEBUS
  • MEMBER
  • 3 POSTS
Will check thanks for the reply
Mar 26, 2012 at 8:04 PM
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