I have a noise coming from the DS rear wheel that I'm trying to diagnose on my 93 FZJ. I've searched a ton of threads and have a few leads, but would like a few opinions before I tear into it again. I don't want to just start throwing parts at.
History- I replaced the rear pads (NAPA) about 1K miles ago. I pulled into work one morning and they were screeching pretty bad. After the pad replacement I would get occasional braking noise but nothing significant. Fast forward a year and approx 1K miles.
I was gone most of last year and unfortunately the truck sat a lot. My wife occasionally drove it around the neighborhood but that's about it. Since I have been home I have a constant noise that is somewhat annoying and a little embarrassing. The best I can describe it is "snow" on a tv, you know back in the day when you woke up in the middle of the night and nothing was on tv so it was just- snow. It's not too loud, and I don't notice with windows up and though it may still be there I cannot hear it above 35-40MPH because of other road noise. It is constant, and does not change or go away when braking. Braking seems pretty normal with no real pulling, vibrations, etc. I thought maybe it was the parking brake but I can apply the brake all the way to a complete stop and it does not change the sound. I thought it could be the slide bolts on caliper so I took everything off, cleaned, lubed and reinstalled with no change. Rotor probably could be replaced but, nothing crazy there. Pads looked good. I probably should have removed the disc / drum and checked the inside of parking brake but didn't. The wheel bearings are tight with no preceptable movement on DS and a very slight movement on PS. One odd thing I did notice is if I clock the DS rear wheel forward there is a ping that rings the driveshaft like a bell. I thought this could be a bad u-joint, but the noise I'm getting seems to roughly match tire speed and not driveline.
Here is what I plan to check this weekend. If you can think of anything else please let me know.
- pull brakes and check for a frozen piston or bad brake line
- pull rotor disc / drum and inspect parking brake assembly
- service u joints to see if there is any change. Replace if necessary.
- inspect / re-pack wheel bearing. Replace if necessary.
Thanks for the help!
History- I replaced the rear pads (NAPA) about 1K miles ago. I pulled into work one morning and they were screeching pretty bad. After the pad replacement I would get occasional braking noise but nothing significant. Fast forward a year and approx 1K miles.
I was gone most of last year and unfortunately the truck sat a lot. My wife occasionally drove it around the neighborhood but that's about it. Since I have been home I have a constant noise that is somewhat annoying and a little embarrassing. The best I can describe it is "snow" on a tv, you know back in the day when you woke up in the middle of the night and nothing was on tv so it was just- snow. It's not too loud, and I don't notice with windows up and though it may still be there I cannot hear it above 35-40MPH because of other road noise. It is constant, and does not change or go away when braking. Braking seems pretty normal with no real pulling, vibrations, etc. I thought maybe it was the parking brake but I can apply the brake all the way to a complete stop and it does not change the sound. I thought it could be the slide bolts on caliper so I took everything off, cleaned, lubed and reinstalled with no change. Rotor probably could be replaced but, nothing crazy there. Pads looked good. I probably should have removed the disc / drum and checked the inside of parking brake but didn't. The wheel bearings are tight with no preceptable movement on DS and a very slight movement on PS. One odd thing I did notice is if I clock the DS rear wheel forward there is a ping that rings the driveshaft like a bell. I thought this could be a bad u-joint, but the noise I'm getting seems to roughly match tire speed and not driveline.
Here is what I plan to check this weekend. If you can think of anything else please let me know.
- pull brakes and check for a frozen piston or bad brake line
- pull rotor disc / drum and inspect parking brake assembly
- service u joints to see if there is any change. Replace if necessary.
- inspect / re-pack wheel bearing. Replace if necessary.
Thanks for the help!
