having problems with front rotors heating on my 1988 Cherokee...need help!
for quite awhile I had some evidence of a warped front rotor, so I replaced both front rotors, used new pads and test-drove my Cherokee (1988). I drove only a few miles and when I got out, the front brakes were really HOT (burning smell) particularly the passenger side. I took her home installed a new passenger-side caliper/hose, bled the brakes, took her out for a drive...still hot (but not quite as hot). I talked it over with a guy who suggested I bleed all four brakes again (thinking the reason the rotors were hot was due to air in the rear lines, thereby putting too much emphasis on the front brakes to stop). I did this, but no change in the heating situation (there is not longer a super hot, smoking rotor...but they're so hot you can barely touch them for a split-second, even after a slow drive around town. I should note that both front rotors are heating this way (equally). This weekend, I removed everything, double checked the free motion of the pads, thoroughly cleaned, polished and lubed (with brake grease) the channels that the pads slide on, also filed smooth the insides of the notches on the pads. Still no improvement. When jacked up, (wheels off, calipers and pads installed) I can rotate the rotor (by hand) with some evidence of dragging pads, (but it's not too hard to turn the rotors). Now I'm wondering if the problem could be a malfunctioning valve in the master cylinder (not releasing pressure fully). When I crack the bleeder valves on the calipers, (to release some possible pressure), there is no detectable difference in the effort required to turn the rotor (and only a slight dribble of brake fluid...not a squirt... when I cracked the valve). Anyone have an idea what this could be? Are Cherokee rotors supposed to be that hot (nearly too hot to touch) after a drive???