Decoding P0440 on Your 2022 Chevrolet Colorado
Your 2022 Chevrolet Colorado has triggered a P0440 code, leading our investigation to the EVAP system. As the final year of the second-generation Colorado, the 2022 model benefits from years of refinement but still shares the known EVAP vulnerabilities of GM trucks. Available with the 2.5L I4, 3.6L V6, or 2.8L Duramax diesel, here's what to look for.
Symptoms
- Check engine light on
- Faint fuel odor
- Slight MPG drop
- Fueling difficulties
- Emissions failure
No performance impact. Your Colorado drives normally.
Top Causes
- Gas Cap — Check for a loose or worn cap first. Estimated repair: $5–$20.
- Vent Valve Solenoid — The most common mechanical failure. Located near the charcoal canister. Estimated repair: $75–$195.
- Purge Valve — Can stick or fail electrically. Estimated repair: $65–$170.
- FTP Sensor — May drift with mileage. Estimated repair: $90–$230.
- Vapor Hose Leak — Heat and vibration from truck use can cause cracks. Estimated repair: $40–$135.
Diagnostic Steps
- Replace gas cap and clear code
- Scan for all EVAP codes
- Actuate vent and purge solenoids
- Smoke test for leaks
- Inspect visible hoses and connections
Repair Costs
- Gas cap: $5–$20
- Vent valve: $75–$195
- Purge valve: $65–$170
- FTP sensor: $90–$230
- Hose repair: $40–$135
- Diagnostic: $80–$150
Driving Impact
None. Safe to drive, tow, and haul.
DIY Friendly
Very. The second-gen Colorado is well-documented for DIY EVAP repairs. Vent valve and purge valve replacements are popular weekend projects with plenty of video guides available.