Car Problem Reports
Ford Expedition Knocking sound next to third row seat.
Ford Expedition Problem
Average Mileage: 154,333 mi (83,000 mi - 223,000 mi)
Knocking sound in the back of the car when the a/c or heat is on.
Replaced the rear ac blower damper motor. = $40.00
Visitor, 2004 Ford Expedition, 190,000 mi
Knocking sound heard behind middle passenger seat. Second row only not blowing hot or cold
Visitor, 2005 Ford Expedition, 145,000 mi
Last winter my car was cold, when I turned the rear heat on, it began thumping loudly. Has done it ever since...
KNOCKING SOUND WHEN HEAT WAS ON IN BACK VEHICLE BLOWER