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 MANUALSJEEP2008COMMANDER LIMITED, 4.7 N, RWDREPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEMDTCS P0339 TO P0507
2008 Jeep Commander Limited, 4.7 N, RWD
DTCS P0339 To P0507
2008 Jeep Commander Limited, 4.7 N, RWDSECTION DTCS P0339 To P0507
- P0339-Crankshaft Position Sensor Intermittent
- P0340-Camshaft Position Sensor Circuit
- P0344-Camshaft Position Sensor Intermittent
- P0401-EGR System Performance
- P0403-EGR Solenoid Circuit
- P0404-EGR Position Sensor Rationality Open
- P0405-EGR Position Sensor Circuit Low
- P0406-EGR Position Sensor Circuit High
- P0420-Catalyst Efficiency (Bank 1)
- P0430-Catalyst Efficiency (Bank 2)
- P0440-General EVAP System Failure
- P0441-EVAP Purge System Performance
- P0443-EVAP Purge Solenoid Circuit
- P0452-EVAP Pressure Switch Stuck Closed
- P0455-EVAP Purge System Large Leak
- P0456-EVAP Purge System Small Leak
- P0457-Loose Fuel Cap
- P0461-Fuel Level Sensor 1 Performance
- P0462-Fuel Level Sensor 1 Circuit Low
- P0463-Fuel Level Sensor 1 Circuit High
- P0480-Cooling Fan 1 Control Circuit
- P0481-Cooling Fan 2 Control Circuit
- P0501-Vehicle Speed Sensor 1 Performance
- P0503-Vehicle Speed Sensor 1 Erratic
- P0506-Idle Speed Performance Lower Than Expected
- P0507-Idle Speed Performance Higher Than Expected
RENDER: 1.0x
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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.