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1998 Chevy Tahoe Hesisitation

Tiny
LASHUN.MCKNIGHT
  • MEMBER
  • 1998 CHEVROLET TAHOE
  • V8
  • 2WD
  • AUTOMATIC
  • 169,000 MILES
Hello! My vehicle only has hesisitation and "misses" when it rains or it is damp in the air. This has just started about a month ago? It seems to backfire when I crank it - it has gotten to where it does that often? What causes this
Monday, February 22nd, 2010 AT 2:54 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Inspect and test all the following listed below:

Oxygen sensor.
Catalytic converter.
Fuel injectors dirty/sticking.
Mass airflow sensor/Airflow meter.
Throttle position 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.
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Monday, February 22nd, 2010 AT 10:15 PM

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