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1997 GMC Vortec V6 misses bucks

Tiny
LYLEBUS
  • MEMBER
  • 1997 GMC SIERRA
  • 220,000 MILES
Acts like points bad on old car.
Really bad when cold.
changed plugs and wires.
Gives random misfire code.
Monday, March 26th, 2012 AT 7:52 PM

3 Replies

Tiny
DRCRANKNWRENCH
  • MECHANIC
  • 3,380 POSTS
You should have the fuel pressure checked.
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Monday, March 26th, 2012 AT 7:53 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Could be bad fuel and vacuum leak, normally will cause the random misfire P0300
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Monday, March 26th, 2012 AT 8:00 PM
Tiny
LYLEBUS
  • MEMBER
  • 3 POSTS
Will check thanks for the reply
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Monday, March 26th, 2012 AT 8:04 PM

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