The first sound is a thumping sound when driving down the road. It's hard to say which side it is coming from. I checked the tires and I don't see any knots or visual sign of damage to the tires. They are the original tires on the truck and still have a lot of tread. The paperwork in the glove box when I got the truck showed the tires were balanced when they were put on. This Explorer has had new shocks, inner & outer tie rods, upper control arms w/ball joints, lower ball joints, and new sway bar bushings and end links with bushings put on within the last 6 months. The majority of the front end parts have been replaced so I'm not sure what is causing this thump sound. It only occurs when moving. Something important also is that I don't really "feel" the thump in the steering wheel. It could just be so minor that I don't notice it on road surfaces that aren't perfect and most SUV's don't ride like a car does.
Is it possible it could be wheel bearings? Could a tire have gotten out of balance already? I thought the bearings made the grinding, squeeling, or whirling sound. I never had one cause a thump before. I've checked the new parts that have been put on recently and all still seems well.
The other sound is a rattle noise. It occurs mostly when I hit bumps, but it does happen when sitting still at an idle also if the endine has a moment it doesn't run at a perfect idle all the time. It is a metal sound. I was thinking the exhaust because I recently had a new muffler put on, but upon visual inspection I can not see any loose parts. The metal sound also sounds like it is a really thin piece of steel, kind of like a dust shield for brakes. I checked that out and they weren't loose so I don't know.
I apologise for the long post, but I want to be as thorough as possible. Any thoughts on this thumping sound when moving?
have the same problem?
Sunday, May 2nd, 2010 AT 3:39 PM