Bulletin Information
Bulletin Title: #PIP5854 - Diagnostic Tip: DTC p0420 With A Possible Exhaust Backfire Under Load, Hard Starting Or Crank No Start Condition And/or Multiple Misfire Or Ignition Coil Related DTCs - (May 19, 2022)
Bulletin Type: Preliminary Information
Applies To: Engine Controls and Fuel
Applicable Vehicles
2022 GMC Truck Sierra 2500HD/3500HD - 4WD
2022 GMC Truck Sierra 2500HD/3500HD - 2WD
2022 GMC Truck Sierra 1500 - 4WD New (RPO J22, VIN Digit 5 = U)
2022 GMC Truck Sierra 1500 - 4WD Limited (RPO J21, VIN Digit 5 = 9)
2022 GMC Truck Sierra 1500 - 2WD New (RPO J22, VIN Digit 5 = H)
2022 GMC Truck Sierra 1500 - 2WD Limited (RPO J21, VIN Digit 5 = 8)
2022 Chevrolet Silverado 2500HD/3500HD - 4WD
2022 Chevrolet Silverado 2500HD/3500HD - 2WD
2022 Chevrolet Silverado 1500 - 4WD New (RPO J22, VIN Digit 5 = D)
2022 Chevrolet Silverado 1500 - 4WD LTD (RPO J21, VIN Digit 5 = Y)
2022 Chevrolet Silverado 1500 - 2WD New (RPO J22, VIN Digit 5 = A)
2022 Chevrolet Silverado 1500 - 2WD LTD (RPO J21, VIN Digit 5 = W)
#PIP5854 - Diagnostic Tip: DTC p0420 With A Possible Exhaust Backfire Under Load, Hard Starting Or Crank No Start Condition And/or Multiple Misfire Or Ignition Coil Related DTCs - (May 19, 2022)
- Subject:
- Diagnostic Tip: DTC p0420 With A Possible Exhaust Backfire Under Load, Hard Starting Or Crank No Start Condition And/or Multiple Misfire Or Ignition Coil Related DTC's
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