P0440 on JEEP WRANGLER
What P0440 Means on Your JEEP WRANGLER
Real JEEP WRANGLER Owner Reports (Source: NHTSA Complaints Database)
"A large amount of fuel violently erupts from tank mouth when filling and overflows onto the vehicle, ground & myself. this occurs at each complete fill-up. this 2005 jeep wrangler sporadically trips obd-2 check engine codes for emission evaporative components, in the p0440-p0456 range."
"When fueling vehicle, fuel spits back and overflows every time nearing full tank. also sets check engine light p0440. potential fire hazard."
Data from NHTSA Vehicle Complaints Database. All reports are filed by vehicle owners directly with the U.S. Department of Transportation.
Common Causes of P0440 on JEEP WRANGLER
Percentages based on NHTSA complaint component analysis for this vehicle.
Complaint Trend by Year
What To Do Next
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1
Check for recalls on YOUR VIN
Go to nhtsa.gov/recalls and enter your VIN. Free repairs if your vehicle is covered.
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2
Get a proper diagnosis
A code alone doesn't tell you the exact failed part. A diagnostic at a shop ($50-$150) pinpoints the root cause before you spend money on parts.
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3
Compare repair quotes
Get 2-3 quotes. Dealer vs independent shop prices often differ 30-50% for the same repair.