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2003 Chevrolet Trailblazer LS 4.2L Poor Idle Quality, Misfire, Poor Fuel Economy
Posted to GM Driveability on 2/22/2008 4 Replies

Has a clear #2 misfire at idle (seems ok under load) Replaced original plugs 175k. No change. Checked LTFT -12% Ckecked for CAM counts seems ok I'm not positive how they normaly work this one slowly counts up then starts over (no codes) When cam sensor is disc...

4 Replies Received (View Replies)

  Related Documents & Media  2003 Chevrolet Trailblazer LS

 
Message Closed w/Summary

car Vehicle Data

2003 Chevrolet Trailblazer LS

VIN 1GNT13SX22
Engine4.2 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / sefi
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Misfire, Poor Fuel Economy
OccursHot, Idle

Trouble Codes

P0302Cylinder 2 Misfire Detected
Message Closed w/Summary

car Vehicle Data

2003 Chevrolet Trailblazer LS

VIN 1GNT13SX22
Engine4.2 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFI / sefi
EmissionsOBD-II Compliant
SymptomsPoor Idle Quality, Misfire, Poor Fuel Economy
OccursHot, Idle

Trouble Codes

P0302Cylinder 2 Misfire Detected