When the outside temperature is above 90° F and the AC is running, a knocking noise from the engine compartment may be heard, especially when the vehicle is stopped or idling. This is commonly caused by a failing AC compressor assembly which will require replacement.
Average mileage: 93,006 (54,000–119,000)
Engines affected: 2.4L 4 Cylinder, 3.5L V6, V6
12 people reported this problem