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2012 GMC Sierra 1500 SLE 5.3L Hesitation, MIL Lamp on
Posted to GM Driveability on 7/13/2018 17 Replies

As soon as the engine runs for 5 plus minutes it starts to misfire on # 5 cylinder and has poor accelleration, We have tried new plugs, wires, Known good injector & coil, Static & running compression is good [same on all 8 cylinders- 195 psi] Leak down tes...

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  Related Documents & Media  2012 GMC Sierra 1500 SLE

 
Message Closed w/FIX

car Vehicle Data

2012 GMC Sierra 1500 SLE

VIN 1GTR2TE02C
Engine5.3 L / 8 cyl / FLEX
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsHesitation, MIL Lamp On
OccursHot, on Accel, Idle

Trouble Codes

P0300Multiple Misfire Detected
P0305Cylinder 5 Misfire Detected
Message Closed w/FIX

car Vehicle Data

2012 GMC Sierra 1500 SLE

VIN 1GTR2TE02C
Engine5.3 L / 8 cyl / FLEX
Trans4-speed Automatic (Electronic)
DeliveryFuel Injection
EmissionsOBD-II Compliant
SymptomsHesitation, MIL Lamp On
OccursHot, on Accel, Idle

Trouble Codes

P0300Multiple Misfire Detected
P0305Cylinder 5 Misfire Detected