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Runs poor

Tiny
PIETZ189
  • MEMBER
  • 2000 CHEVROLET BLAZER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 125,000 MILES
I have a 2000 chevy Blazer 4.3 Every time I start it it ideals fine but when I hit the gas it spits and sputters but after 3 or 4 blocks it snaps out of it and runs and drives perfect I repalced the fuel filter and that dint help
Tuesday, August 9th, 2011 AT 11:27 AM

1 Reply

Tiny
JDL
  • MECHANIC
  • 16,098 POSTS
How long since a tune-up? Any applicable codes? With that spider fuel system, I suspect that first. Use a gage and check fuel pressure, key on engine off. The fuel poppets may need to be cleaned, there is a shop procedure for that cleaning. I don't know if injector cleaner in the gas tank will help or not? Sometimes it does.
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Tuesday, August 9th, 2011 AT 2:03 PM

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