Fault Code Lookup › Powertrain codes › P0440

P0440 Powertrain · generic OBD-II

Evaporative Emission System

P0440 is a standard code covering engine, transmission, fuel and emissions. It names the system that logged the fault, not the part that failed. Below: which cars owners reported it on, what happened, and recalls on those cars, from 6 complaints filed with NHTSA. Updated November 9, 2026.

  • 6owner reports
  • 5car models
  • 0mention a crash
  • 0mention a fire
  • 2015–2018model years

Which cars get code P0440?

Every model whose owners mentioned P0440 in a complaint, most reports first. Each year opens that car's full problem report. Popular models collect more reports because more of them are on the road.

Where does P0440 show up?

By brand

  • Jeep3
  • Dodge2
  • Chrysler1

Component the owner filed it under

  1. Fuel/Propulsion System3 (50%)
  2. Electrical System2 (33.3%)
  3. Engine1 (16.7%)
  4. Electronic Stability Control (ESC)1 (16.7%)
  5. Power Train1 (16.7%)
  6. Exterior Lighting1 (16.7%)

Is there a recall for P0440?

The others concern the component owners file this code under (Fuel/Propulsion System) on the same cars; they may or may not relate to the code. Recall repairs are free; check your VIN at nhtsa.gov/recalls.

Fuel System, Diesel: Delivery: Fuel Pump Chrysler (FCA US, LLC) is recalling certain 2014-2020 Jeep Grand Cherokee, and 2014-2019 Ram 1500 vehicles equipped with 3.0L diesel engines. A high pressure fuel pump (HPFP) failure may introduce internal debris into the fuel system, potentially resulting in fuel starvation. NHTSA campaign 22V406000 · June 9, 2022 · Affected cars

2015 Jeep Grand Cherokee. Full risk and remedy on each car's report.

Fuel System, Gasoline: Storage: Tank Assembly Vantage Mobility International, LLC (Vantage) is recalling certain Vantage-modified 2016-2019 Dodge Grand Caravan vehicles. The fuel pump gasket may deteriorate, allowing fuel to leak. NHTSA campaign 20V278000 · May 15, 2020 · Affected cars

2016 Dodge Grand Caravan. Full risk and remedy on each car's report.

Fuel System, Gasoline: Delivery: Hoses, Lines/Piping, And Fittings Chrysler (FCA US LLC) is recalling certain model year 2016 Dodge Durango and Jeep Grand Cherokee vehicles manufactured February 10, 2016, to April 28, 2016 and equipped with a 3.6L engine built at the Saltillo engine plant. During the assembly of the engine, the fuel rail crossover tube may have… NHTSA campaign 16V814000 · November 10, 2016 · Affected cars

2016 Dodge Durango. Full risk and remedy on each car's report.

What happened when owners saw P0440?

4 of the 6 reports, spread across the models above, as the owners wrote them. NHTSA removes names and VINs; long reports are trimmed. CarHooq has not verified individual claims.

Check Engine light came on. Code states P0440 Evaporative Emission Systems. However, i looked to see if recall was issued for my vehicle and it states a recall was issued for this but not my vehicle vin number.
2016 Dodge DurangoFuel/Propulsion SystemNHTSA complaint 11455058 · Mar 3, 2022
Check engine light code P06DE occurred 04/2022. Oil pressure sensor removed And replaced. Check engine light code P06DE occurred 05/2022. Performed 2nd oil change in less than 1 month. Check engine light code P0440 occurred 10/2022. Evaporative System Integrity Monitor Switch replaced. Check engine light code P06DE occurred 03/2023. Oil pressure sensor removed And replaced (including R&I Lower intake Manifold). Check engine light code P06DE occurred 04/2023 Oil pressure sensor removed And replaced. Replaced oil pump and gaskets needed for reassembly of engine. Check engine light code P0523 occurred 05/2023. Replaced transfer case module. Check engine light code P0523 occurred 06/2023.
2015 Jeep Grand CherokeeElectrical System, EngineNHTSA complaint 11525706 · Jun 6, 2023
JEEP SAFETY CONCERN 2016 JEEP RENEGADE TRAIL HAWK 4WD MILEAGE: 35.000 OUR VEHICLE DISPLAYED CHECK ENGINE CODE (P0440). TOOK THE VEHICLE TO THE DEALER AND THEY REPLACED A FRONT VACUUM VALVE. THREE DAYS LATER THE CHECK ENGINE LIGHT WAS BACK ON. BROUGHT THE VEHICLE BACK TO THE DEALER. THE DEALER STATED A PRESSURE SWITCH IN THE GAS TANK WAS THE PROBLEM BUT THE PART HAD TO BE ORDERED. WHILE THIS CHECK ENGINE LIGHT WAS ON I DISCOVERED THAT WHEN THE ELECTRONIC COMPUTER MODULE (ECM) SEES AN EMISSION CODE THE ECM WILL DISABLE THE VEHICLES 4WD AND THE REMOTE START. THE REMOTE START IS NOT A SAFETY CONCERN BUT THE 4WD IS.THERE WAS A SNOW STORM THAT HIT THE EASTERN SEABOARD AND EFFECTED OUR AREA. SINCE…
2016 Jeep RenegadeElectronic Stability Control (ESC)NHTSA complaint 11076445 · Mar 6, 2018
69000 MILES, CHECK ENGINE LIGHT CAME ON. CODES P0440 WAS THROWN 2X. I ALREADY REPLACED PURGE VALVE AT MY OWN COST. I ALSO INFORMED DODGE. THEY WON'T FIX IT UNLESS I PAY FOR DIAGNOSIS. WHICH I ALREADY HAD ONE DONE. ALSO HEADLIGHT BULB DROPPED AT 38K MILES AND I INFORMED DODGE AND MECHANIC. SHE SAID I DIDN'T HAVE THE WARRANTY ON IT AND THEY WOULDN'T REPLACE UNLESS I PAID FULL COST
2018 Dodge DurangoExterior Lighting, Wheels, Fuel/Propulsion SystemNHTSA complaint 11350522 · Aug 20, 2020

P0440: questions drivers ask

What does code P0440 mean?

P0440 is a generic OBD-II powertrain code. Its standard definition is "Evaporative Emission System". The code tells you which system set the fault, not which part failed; the owner reports on this page show what it meant in practice for 5 car models.

Which cars get code P0440 most often?

In NHTSA owner complaints, P0440 is mentioned most for the Dodge Durango (2), Jeep Grand Cherokee (2), Chrysler Pacifica (1), across 5 models and model years 2015 to 2018. Popular models collect more reports because more of them are on the road.

Is there a recall for code P0440?

No NHTSA recall text names P0440 directly. 3 recalls on the cars that report this code concern the same component owners name most (Fuel/Propulsion System); they may or may not relate to the code. Check your VIN at nhtsa.gov/recalls.

What should I do if my car shows P0440?

Write down when the code appeared and what the car did (warning lights, loss of power, noises, speed, weather). Check your VIN for open recalls at nhtsa.gov/recalls, ask a dealer or independent workshop to read the stored freeze-frame data before anyone clears the code, and keep the repair order. If the car loses power in traffic, stop driving it. CarHooq does not diagnose: these are owner reports and official recall notices, not repair advice.

How this page was made

CarHooq read the text of every owner complaint filed with NHTSA for 19 US and European brands (model years 2012 onwards) and picked out the diagnostic trouble codes owners wrote down. This page lists every mention of P0440. The definition is the generic SAE J2012 wording; a carmaker may use the code slightly differently. Nothing here is a diagnosis. More answers: the fault code FAQ. Data: NHTSA Office of Defects Investigation (public domain), retrieved November 9, 2026. How CarHooq reports are made.

Is something missing or wrong on this page? Tell CarHooq. One line is enough; every message is read.

Look up another code

Or check a car: Problem Lookup · Used-car checker