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Ted G.
Ted G., ASE Certified Technician
Category: Dodge
Satisfied Customers: 6138
Experience:  20 years auto repair experience, ASE Master Tech, Mechanical Failure consultant, Expert Witness
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2004 dodge neon: check engine light..the code reads p0440 what

Customer Question

2004 dodge neon check engine light is on the code reads p0440 what could be wronge and how do i reset the engine light and fix the problems
Submitted: 9 years ago.
Category: Dodge
Expert:  Ted G. replied 9 years ago.
A P0440 indicates a leak in your evaporative emission system. This can be as simple as a gas cap left loose. So first make sure your gas cap is on tight and has a good seal on it. Have the code cleared and see if it comes back. If it does you will need to have a smoke test done. This done with a special machine that injects smoke into th fuel tank system and pinpoints where the leak is. Most rpair shops can do this test.