The Lemon IndexThe EGR valve isn't moving the way it's commanded.
Drive on, get it checked. You can usually keep driving. Have the code read at your next service or within a few weeks.
Sticking EGR valve. Then: carbon buildup; wiring fault.
Owners named P0404 in 19 complaints to the U.S. government, most often on the Ram pickup.
Cars owners report it on
Complaints that name P0404, by model. Raw counts, not a failure rate: popular models get more complaints.
Years owners report it on most: 2005 Ram pickup · 2008 Chrysler Town & Country
The details
What P0404 means
The EGR valve isn't moving the way it's commanded.
Can I drive with P0404?
Drive on, get it checked. You can usually keep driving. Have the code read at your next service or within a few weeks.
47% of the owner complaints that name P0404 also say the car stalls or shuts off. A complaint can describe more than one problem, so this doesn't prove the code caused it.
Common causes of P0404
- Sticking EGR valve
- Carbon buildup
- Wiring fault
A shop should confirm the cause with a scan and tests before replacing parts.
What owners describe
- Stalls or shuts off: 47% of complaints
- Loses power or goes into limp mode: 16% of complaints
- Transmission slips or shifts hard: 16% of complaints
- Shakes, runs rough or misfires: 16% of complaints
Share of complaints naming the code whose text also mentions each problem.
Model years that report P0404 most
2005 Ram pickup (3), 2008 Chrysler Town & Country (2).
Related codes
P0403 P0405 P0402 P0406 P0401 P0410 P0411 P0418
Quick answers
What does P0404 mean?
Exhaust Gas Recirculation A Control Circuit Range/Performance. The EGR valve isn't moving the way it's commanded.
Can I drive with P0404?
Drive on, get it checked. You can usually keep driving. Have the code read at your next service or within a few weeks.
What causes P0404?
Sticking EGR valve; Carbon buildup; Wiring fault.
Counts: NHTSA owner complaints whose text names P0404. A complaint is an owner's report, not a diagnosis. Meanings: the standard SAE J2012 definitions in our own words; manufacturer codes only where verified for that make. General information, not repair advice for your car.