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 MANUALSBUICK2011ENCLAVE CX, FWDREPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEMENGINE CONTROLS AND FUEL - 3.6L - DTC P0008 THROUGH DTC P0393DIAGNOSTIC INFORMATION AND PROCEDURESDTC P0016, P0017, P0018, OR P0019 (WITHOUT LF1, LFW, LFX)CIRCUIT/SYSTEM TESTING
2011 Buick Enclave CX, FWD
Circuit/System Testing
2011 Buick Enclave CX, FWDSECTION Circuit/System Testing
- Ignition ON, observe the DTC information with a scan tool. Verify that none of the following DTCs are set. DTC P0010, P0013, P0020, P0023, P0335, P0336, P0338, P0341, P0342, P0343, P0346, P0347, P0348, P0366, P0367, P0368, P0391, P0392, P0393, P2088, P2089, P2090, P2091, P2092, P2093, P2094, or P2095.
- If any of the DTCs listed are set refer to Diagnostic Trouble Code (DTC) List - Vehicle for further diagnosis.
- Idle the engine at normal operating temperature for 10 minutes. DTCs P0016, P0017, P0018, or P0019 should not set.
- If a DTC sets, inspect for the following and repair as necessary:
- The correct installation of the camshaft sensors
- The correct installation of the crankshaft sensor
- A timing chain tensioner condition
- An incorrectly installed timing chain
- Excessive play in the timing chain
- A mechanical cam actuator that is stuck in the full advance or retard position.
- A timing chain that jumped teeth
- A crankshaft reluctor wheel that has moved in relationship to top dead center (TDC) on the crankshaft
- Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data.
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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.