When changing the air filter, it is easy to knock off a hose on the air filter housing, which is part of the emission control system. If the vehicle is driven with this hose disconnected, the Check Engine Light will illuminate.
Average mileage: 117,278 (17,000–250,000)
Engines affected: 2.4L 4 Cylinder, 3.0L V6
25 people reported this problem