Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET2012CHEVY EXPRESS G2500, VAN PASSENGER, 4.8L ENG VIN AREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 477 (ENGINE CONTROLS DIAGNOSIS - 6.6L (LLY) (DTC P0238 TO DTC P0652))
2012 Chevrolet Chevy Express G2500, Van Passenger, 4.8L Eng VIN A
Section 477 (Engine Controls Diagnosis - 6.6L (LLY) (DTC P0238 To DTC P0652))
2012 Chevrolet Chevy Express G2500, Van Passenger, 4.8L Eng VIN ASECTION Section 477 (Engine Controls Diagnosis - 6.6L (LLY) (DTC P0238 To DTC P0652))
WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- Diagnosis
- DTC P0238
- DTC P0299
- DTC P0300 (Federal Emissions)
- DTC P0300 (California Emissions)
- DTC P0301-P0308 (Federal Emissions)
- DTC P0301-P0308 (California Emissions)
- DTC P0335
- DTC P0336
- DTC P0340
- DTC P0341
- DTC P0370 or P0374
- DTC P0401
- DTC P0403
- DTC P0404
- DTC P0405
- DTC P0406
- DTC P0506
- DTC P0507
- DTC P0601-P0607, P1600, P1621, P1627, P1680, P1681, P1683, or P2610
- DTC P0611, P1293, P1294, P1295, P1296, P1658, or P1687
- DTC P0612
- DTC P0642
- DTC P0643
- DTC P0650
- DTC P0652
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.