Check Engine Light on Due to Faulty Idle Air Control Valve on Honda Pilot

Problem Description and Possible Solution

On some models a faulty Idle Air Control (IAC) valve can cause an engine surge at idle and set a Check Engine Light (MIL). Replacing the faulty IAC valve will commonly correct this problem.

Problem Data
RepairPal Verified
Average mileage: 131,500 (72,000–180,000)
2 model years affected: 2003, 2004
7 people reported this problem
Viewing 1 - 3 of 3 comments
Started with engine surging at idle. Then, while in driving in lower gear, the engine stays at higher rpms and does not shift smoothly (jumpy). After a period, engine light came on and VTM light also. More breaking power needed to slow vehicle and some bucking was noted.
Also had a high idle and hard shift from park to drive or reverse. Replaced the IAC. Fairly easy to do.
check engine light went on. previous earlier experienced idling problems.