Not exactly Buick related, but I trust my Buick Brothers here for suggestions. 2008 Expedition, 85k New rear pads in May New front pads in September I did them myself, All calipers all pushed back with a c-clamp with normal effort, no fluid or leaks noted. Sometime after new rear pads, and before new front pads I noticed that sometimes it feels like something is holding the truck back. It has gotten worse in the last few days after new front pads. From a red light or stop sign, let off the brake and the truck doesn't move or roll like usual, and seems to take extra effort to get going. My driveway has a slight grade and normally the truck will roll out but when this happens, you can tell its rolling much slower than it should. Ive used a laser thermometer, and there's no wheel/rotor/caliper thats considerably hotter than the others. After driving it around for a while, Ive lifted one wheel at a time and spun it by hand and none have any resistance. Checked brake hoses, none are twisted or kinked. e-brake is not on. But sure feels like a caliper that has stuck. Any other ideas?
might be the caliper bushings/pins siezed.push the pistons back in & see if you can move the caliper back & forth.
They were really 'free' when I took them off, and I added more anit-sieze when I reinstalled them. No corrosion or stickyness at all. Its not throwing any codes. Im dropping it off for new plugs/AC check up this afternoon, I'll have the mechanic drive it to see what he thinks
I imagine that God has set a limit on how many running Fords are allowed on the roads at any one time, and your number just got picked this month. o No:
on my dads 01 chevy the rubber lines caused it. apparently they get bad places on the inside and keep the fluid from bleeding back out fast enough.
Saw my mechanic, we took it for a drive, he could feel how the brakes don't let go as fast as you think He suggested since the pads were new that I 'bed' them (I had not don this) We took it to a stretch of road and did 8-10 hard slows from 60mph to 20mph and let go. He mentioned the rotors look shiny, possible the new pads could be sticking to them Seemed a bit better, so we decided to drive it for a few more days and see if I can do a few more hard brakes. When I got home though I could smell the pads. Got my thermometer out again and both rear rotors were 280 Drivers front rotor was 310 Passenger front rotor was 520 - so seems that may be the culprit - even though it does not pull to either side when braking or when letting off the brake
Autozone Calipers are $87....the guy was nice enough to give me 20% off cause Im a regular Will be here tomorrow. Any special details to look out for? Just the washer each side of the fitting and bolt it in. Approx torque?
I once had a brake hose collapse internally. Caused some of the same symptoms. Eventually the caliper would not release. I replaced the caliper and still had the same problem that was how I found the hose. Have you tried to bleed the front caliper? Did the fluid flow normal?
Good idea... Not yet. Before I bolt on the new caliper I'll bleed it, and inspect the hose. If I get a good amount of fluid with my vacuum pump Ill go ahead and swap the caliper
All in good fun... I would not expect anything less from us Buick guys. Heck I even tease a friend of mine who's a chevy guy, and bought an F150! never understand that one...
I think you stumbled on to something. I just got the T road ready and completely drivable. As I added one Ford to the road network, God made yours go away. I am truly sorry. :grin:
Oh yeah, just messing with you Curtis. :laugh: But for the record, I wouldn't turn down a 71-73 Mach 1. I love those cars. :bglasses: But would that make me a traitor? o No:
More then likely its your caliper slide pins.. Had a 00 WS6 Trans Am seize up on me and a 01 WRX do the same thing.. Heck its almost cheaper just to buy a new caliper then to fool with it.
Im certain its not the slide pins, they were pristine when I took them out to do the pads last week. I add anti-seize when I reinstalled too. Picked up the new caliper tonight, hope to get time tomorrow to get to it.
You took the cap off the master cylinder when you pushed the pistons back into the calipers to let the pressure off, right?
