Well guys, newbie here to the site and hoping you experts can lend a hand...(sorry it s alittle long but wanted to give a good discription).
Most of the time when my wife stops her '98 xplorer there is a thumping sound from under the passenger side - is doesnt happen all the time but about 90% and you can actually feel it through the floorboard. The noise is rotational, as in it occurs in time with the rototation of the tire. No noise while driving, only under light braking right before it comes to a stop?? It does groan a little bit when letting up on the brake pedal too. My head is sore from banging it on the wall trying to figure this out.
In a desperate search for a cure, I have replaced the lower ball joints, pads, rotors, shocks and sway bar end links, and tighten every bolt under the front end that I could see - none of which yeilded any improvement. I even tried disconnecting the sway bar - which didnt help either. The tierods are tight and have no play at all. Also had the upper ball joints checked and replaced the drivers side as shop said it was bad. I did notice the torsion bars were cranked up so that the explorer was slightly higher in the front than the rear. I brought the front end down a bit but noticed no improvement. I did notice the front CV shafts can move in/out a fraction of an inch (enough to feel them move but barely see the movement -maybe 1/8") but I thought some play was normal? My only thoughts now are bearings but I would imagine they would make some noise other than just while stopping?
Also thought of the torsion bar mounts I have read about but thought those noises would happen while driving too?? Any ideas are greatly appreciated as I am more than tired from throwing money/parts at this thing??
Thanks in advance.