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1999 Chevy Blazer spits and sputters

Tiny
CGC
  • MEMBER
  • 1999 CHEVROLET BLAZER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 160,000 MILES
I have a 99' chevy blazer v6 4wd and if I don't let it sit and run for a few min after I start it it cuts out and drives really slow for about a min then it's fine. My uncle is a mechanic and he told me he thought it was a fuel filter so I changed it and it hasn't helped. Could you give me your oppinion on what wrong with it? Thanks
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Wednesday, August 11th, 2010 AT 9:10 AM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Lack of acceleration, chugging, hesitating, bogging, misfiring etc. Could be caused by one of the following below:

Start here inspect and test all the items below and comeback with results.

Oxygen sensor.
Catalytic converter.
Fuel injectors dirty/sticking.
Mass airflow sensor/Airflow meter.
Throttle position sensor.
Crankshaft position sensor
Knock sensor
Manifold absolute pressure sensor.
EGR Valve
Fuel pressure regulator leaking or defective fuel pump.
False air leakage.
Fuel contamination.
Foul/defective spark plugs.
Open spark plug wires.
Ignition coil/Coil packs defective.
Incorrect ignition timing.
Cap and rotor.

Note:If it doesn't apply disregard it.
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Saturday, August 14th, 2010 AT 4:58 AM

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