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Master
1,916 Answers
- Posted on Dec 30, 2010
Re: Can this code p0442 be the gas cap?
Common Problems That Trigger the P0442 Code
- Defective or damaged fuel cap
- Distorted or damaged Fuel Tank Filler Neck
- Small tear or puncture in the Evaporative system hose(s) and/or Carbon Canister
- Defective Fuel Tank Sending Unit gasket or seal
- Small split in a seam of the Carbon Canister
- Defective Evaporative Vent Valve and/or Evaporative Purge Valve
- Defective or damaged Fuel Tank
- Defective Fuel Tank Pressure Sensor
- Defective Leak Detection Pump
- Slightly loose and/or worn clamps or hardened O-rings anywhere in the EVAP system
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