I borrowed my son's truck today. It is a 2003 F-250 4WD with 95,000 miles. It has been sitting for roughly 2 months before today.
When I got onto secondary roads, I could feel a bucking type sensation when I let off the gas. Seemed to be coming from the rear. Didn't think much of it as this is not a smooth driving vehicle by any standards. By the time I reached the highway, it was worse. Felt like I was driving over small speed bumps, but the road was smooth. I was afraid that the truck was going to shake itself apart. I quickly exited the highway, and drove home on the slower back roads. Roughly an hour later I crawled underneath to see if I could find any obvious problems. I was expecting to find a bad driveshaft U joint. All the driveshaft and U joints looked good. Shocks seemed good. For some reason I touched the passenger side brake caliper and it was really hot. Strange. I crawled out from under the car and felt the wheel hob and it was way too hot to touch, even after cooling for an hour. All of the other hubs were just slightly warm.
I am a decent shade tree mechanic, but I have no experience with 4 wheel drive systems. It seems obvious that the burning hot hub is directly related to the bucking problem that I experienced, but I am not sure how to start. Would you expect a partially seized wheel bearing? I didn't have time to take off the wheel and dig deeper. I am travelling on business until Friday, but should have a chance to look at this next week. The car is not needed in the near future, so there is plenty of time.
Does anyone have any thoughts about this issue or where I should start.
I appreciate any advice you can provide.
When I got onto secondary roads, I could feel a bucking type sensation when I let off the gas. Seemed to be coming from the rear. Didn't think much of it as this is not a smooth driving vehicle by any standards. By the time I reached the highway, it was worse. Felt like I was driving over small speed bumps, but the road was smooth. I was afraid that the truck was going to shake itself apart. I quickly exited the highway, and drove home on the slower back roads. Roughly an hour later I crawled underneath to see if I could find any obvious problems. I was expecting to find a bad driveshaft U joint. All the driveshaft and U joints looked good. Shocks seemed good. For some reason I touched the passenger side brake caliper and it was really hot. Strange. I crawled out from under the car and felt the wheel hob and it was way too hot to touch, even after cooling for an hour. All of the other hubs were just slightly warm.
I am a decent shade tree mechanic, but I have no experience with 4 wheel drive systems. It seems obvious that the burning hot hub is directly related to the bucking problem that I experienced, but I am not sure how to start. Would you expect a partially seized wheel bearing? I didn't have time to take off the wheel and dig deeper. I am travelling on business until Friday, but should have a chance to look at this next week. The car is not needed in the near future, so there is plenty of time.
Does anyone have any thoughts about this issue or where I should start.
I appreciate any advice you can provide.
