Tuesday, January 13th, 2009 AT 4:36 PM
I have a Y2k Ford Explorer with 110K. After driving for about 10-15 min. I would stop at a light and hear a thumping noise. Same tempo, not very fast with about a second between thumps. After I shut off the car the thumping continues for about 15-20 seconds after the car is off. When I walk outside the car to deterime the origin is seems to be low in the engine compartment. It does not happen all the time.

