Fixing That Annoying p0442 dodge ram Engine Light

If you've just pulled a p0442 dodge ram code from your truck's computer, you're probably feeling a mix of frustration and "not this again." It's one of those diagnostic trouble codes that won't necessarily stop your truck from running, but it'll definitely keep that yellow "Check Engine" light glowing on your dash like a beacon of annoyance. In the world of Dodge trucks, this code is a classic member of the EVAP family, specifically signaling a "small leak" in the Evaporative Emission system. ...

February 10, 2026 · 7 min · Mirna Mcdonnell