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2002 Chevrolet Trailblazer LS 4.2L Surge, Misfire, MIL Lamp on
Posted to GM Driveability on 11/3/2015 6 Replies

inital problem vehicle came in cyl no. 2 misfire replaced coil vehicle came back 2 weeks later with cel on code 1515 setand 1516 set sometimes 1512 sets and at idle front 3 cylinders you can pull connectors off coils and no change

6 Replies Received (View Replies)

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car Vehicle Data

2002 Chevrolet Trailblazer LS

VIN 1GNDT13S02
Engine4.2 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsSurge, Misfire, MIL Lamp On
OccursAlways

Trouble Codes

15151516 -
1516testing and results
Message Closed

car Vehicle Data

2002 Chevrolet Trailblazer LS

VIN 1GNDT13S02
Engine4.2 L / 6 cyl / GAS
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsSurge, Misfire, MIL Lamp On
OccursAlways

Trouble Codes

15151516 -
1516testing and results