Tracking Down P0440 on Your 2024 Jeep Compass
Your 2024 Jeep Compass has flagged a P0440 code — an EVAP system malfunction. The Compass features a 2.0L Tigershark four-cylinder (200 hp) with an 8-speed automatic and available Active Drive 4WD. As a brand-new vehicle under warranty, this is almost certainly a minor issue. Let's gather the clues.
Symptoms to Watch For
- Check engine light illuminated
- Faint gasoline odor
- Slight fuel economy decrease
- Fuel nozzle clicking off early
- Failed emissions inspection
Your Compass drives perfectly normally. Engine, transmission, and 4WD are unaffected.
Top Suspects: Ranked by Likelihood
- Gas Cap Not Fully Seated — Simplest cause. Estimated repair: $0–$25.
- Purge Solenoid Valve Defect — Manufacturing defect on the 2.0L Tigershark. Estimated repair: $80–$210 (warranty-covered).
- Vent Valve/Solenoid Issue — Early failure near the charcoal canister. Estimated repair: $90–$230 (warranty-covered).
- Loose EVAP Fitting — Factory assembly issue. Estimated repair: $0–$90 (warranty).
- Fuel Tank Pressure Sensor — Inaccurate readings. Estimated repair: $90–$245 (warranty).
Diagnostic Steps
- Check gas cap — remove, inspect, reinstall firmly
- Clear code, drive 50+ miles, monitor
- Schedule Jeep dealer appointment — warranty covers this
- Dealer will perform EVAP diagnostics
- Check for TSBs on the 2024 Compass
Repair Cost Breakdown
- Gas cap: $0–$25
- Purge solenoid: $80–$210 (warranty)
- Vent valve: $90–$230 (warranty)
- EVAP fitting: $0–$90 (warranty)
- FTP sensor: $90–$245 (warranty)
Warranty: Your 2024 Compass is fully covered by Jeep's 3-year/36,000-mile basic warranty. All EVAP repairs are free.
Can I Drive With P0440?
Yes. P0440 is emissions-only with no performance or safety impact.
DIY or Dealer?
Dealer — warranty covers the repair at no cost.