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.
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HOMESERVICE MANUALSPONTIAC2008GRAND PRIX BASEREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 136 (ENGINE CONTROL SYSTEM & FUEL SYSTEM - 3.6L - DTC P0135 TO P0420)
2008 Pontiac Grand Prix Base
Section 136 (Engine Control System & Fuel System - 3.6L - DTC P0135 To P0420)
2008 Pontiac Grand Prix BaseSECTION Section 136 (Engine Control System & Fuel System - 3.6L - DTC P0135 To P0420)
WARNING: This page is about a different car, the 2007 Buick LaCrosse and 2007 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.
- DTC P0135
- DTC P0137
- DTC P0138
- DTC P0140
- DTC P0141
- DTC P0201, P0202, P0203, P0204, P0205, or P0206
- DTC P0221
- DTC P0222
- DTC P0223
- DTC P0261, P0264, P0267, P0270, P0273, or P0276
- DTC P0262, P0265, P0268, P0271, P0274, or P0277
- DTC P0300
- DTC P0301-P0306
- DTC P0318
- DTC P0324
- DTC P0327 or P0332
- DTC P0328 or P0333
- DTC P0335
- DTC P0336
- DTC P0338
- DTC P0341, P0346, P0366, or P0391
- DTC P0342, P0347, P0367, or P0392
- DTC P0343, P0348, P0368, or P0393
- DTC P0351-P0356
- DTC P0420
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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.