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2003 Chevrolet Blazer LS 4.3L Misfire, MIL Lamp on
Posted to GM Driveability on 4/27/2011 19 Replies

came in missfiring with p0300 stored, customer installed new plugs in cyl's 1,2,4,6, and left the other two and wires, cap and rotor for me. cam retard was @ -8 so i took care of that, is now set to 0. ran like a champ for a week, came back with a miss and cod...

19 Replies Received (View Replies)

  Related Documents & Media  2003 Chevrolet Blazer LS

 
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car Vehicle Data

2003 Chevrolet Blazer LS

VIN 1GNDT13XX3
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / CMFI
EmissionsOBD-II Compliant
SymptomsMisfire, MIL Lamp On
OccursAlways

Trouble Codes

P0300Multiple Misfire Detected
Message Closed

car Vehicle Data

2003 Chevrolet Blazer LS

VIN 1GNDT13XX3
Engine4.3 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection / CMFI
EmissionsOBD-II Compliant
SymptomsMisfire, MIL Lamp On
OccursAlways

Trouble Codes

P0300Multiple Misfire Detected