stuck caliper slides rear passenger 1996 850

Sounds reasonable to me. I've seen a lot of slide pins that have lost their lubrication (the stuff is still there, but maybe water got in and ruined the grease). It sure messes up the brake wear. I once forgot to lube one corner of our 85 765T when I did the brakes and within a month the new Volvo pads were worn away and had ruined the new brake rotor. Lesson learned.

Mike

From what you are saying there is a noise in the rear brakes the slides are no more than pins & a retainer that holds the brake pads in without seeing & hearing my best guess is that the retainer is touching the edge of the rotor the correction replace the pin kit on both sides the kit comes with 4 pins & 2 retainers

Glenn Klein wrote: my best guess is that the retainer is touching the edge

Glenn, your suggestion makes sense, thanks! I tried to find this kit, and only found it for the 740. Any suggestions where I might find it for the 850? I guess the obvious answer is the volvo dealer? Andy

Rear brake hardware kits for the 850 are very easy to find.

Raybestos Part # H15604, Wagner #F132614S and others. Any auto parts store can get them for you and it should be under $10 for the kit.

Same goes for front hardware kits.

John

They are the same kits as they used ATE calipers in the rear the pads are the same in the rear 200 700 900 800 Glenn

Glenn Kle> > my best guess is that the retainer is touching the edge

I got some decent weather this weekend, and took it apart. The anti-rattle spring pins were indeed frozen on that side, and the outboard pad was hardly worn. I had previously checked for pad wear, and the outboard pad tricked me. The inboard pad was completely gone, and inside of rotor scored. Lesson learned, all replaced. It seems to me that these pins are such a weak point in the design that they should be a maintenance item in themselves...perhaps remove, clean, and replace every 50K. Can they be re-used if they are in decent shape? Thanks,

Andy

Yes on both counts. Sticking pins are so common I suspect they are a major cause of brake pad wear. I have been lucky enough to be able to clean and relube all the pins I've encountered so far, but replacements are usually inexpensive enough it might be a fool's errand to reuse them.

My wife's car is a Toyota Prius hybrid, and the brakes are used so lightly (normally relies on regenerative braking above 11 mph except on rough surfaces or hard stops) that I expect to relube them at least once before time for pad replacement. A Prius tech in the Yahoo Prius group recommends relubing every 30K miles. 50K should be okay for Volvos, I'd guess.

Mike