Let me start by letting you know that this article is going to be very technically oriented towards fixing a 2003 Dodge Neon. I’m sure some of the info will be helpful for any car built in the 21st century, but you may want to skip over the gritty details. This article will also reveal the complicated way cars check for fuel leaks and explore some of the huge frustrations of modern emissions testing. Ready to unravel a mystery? I recently learned so much about the Chrysler EVAP system that I wanted to share – in plain English – what I went through, and what I learned.
You: “I have code P0440 – what should I do?”
Every car mechanic: “Replace your gas cap!” Continue reading