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Hissing/dragging mystery noise from rear end, stumped!
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Could be brake pad drag. If the sliders are sticking or if the caliper piston seal is sticking to the piston (stuck corroded bore) the pads will drag on the disc. Happens frt and rear. The rears are easy fix. If Girlings on frt. Pita. There is a technique for the piston gaiter on Girlings. If u dont follow you will be chimping, Grasshopper. Seems as though disc runout would alleviate the problem but sometimes it dosnt.
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4.10 open here as well.
Before I started replacing anything other than the diff oil, I'd take a close look at the e brake. If its adjusted that poorly who's to say it was installed right. It's not uncommon for the shoe retaining pins to corrode or pop out which could easily cause a noise such as you describe.Seat Shocks....I have passed the baton to John Christy from Ninestitch. Email John or Garrett at ninestitch1@gmail.com
https://www.r3vlimited.com/board/sho...86#post4944786
Alice the Time Capsule
http://www.r3vlimited.com/board/showthread.php?t=360504
87 Zinno Cabrio barn find 98k and still smells like a barn. Build thread http://www.r3vlimited.com/board/show...20#post3455220
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A dragging/scraping/hissing noise from the rear wheels that doesn't go away with application of the brakes or parking brake won't be from dragging brake shoes or pads. It could be from something in the parking brake mechanism, which should be obvious once you pull the rotors. If not from the brakes or backing plates, the next most likely cause is a bad wheel bearing. A bad bearing in the differential is a possibility, but I'd change the wheel bearings before messing with the differential.The car makes it possible, but the driver makes it happen.
Jim Levie, Huntsville, AL
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Please keep this thread going! I'm concerned about a similar sound--it speeds up and slows down with the car. Rear rotors and brakes are brand new. Haven't looked at the e-brake, but I don't think it is too badly out of adjustment. I replaced a front wheel bearing, so I am suspicious of all the bearings at this point.
The guy I bought it from was not entirely truthful about its condition, so if something major were wrong like the rear diff, that kind of fits why he was selling it.'90 zinno 325iS
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If the whine is related to LOAD and throttle position and will still make a rumbling in neutral while coasting in neutral...............
usually the diff pinion RACES x2 will have worn and the 2x related bearings are dying.
the entire load of the car is put on these 2 bearings/races.
a slight amount of metal in drained differential oil will show this;OBD1 M54/M52TU swap as a M50b25
Z4 non powered steering rack fits e30
Euro e46 2005/6 320d 6mt gearbox into E30 with M20 hardy and beck 1985 327s engine
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