2006 SSR brake problems

[6281219]

Trying to find what is causing the front brakes to not release. Front wheels are hard to turn, rotors heat up. Can't get pressure to release on front calipers. Checked master cylinder and there does not appear to be any brake fluid in the return line. Plenty of fluid in reservoir. Any one else had such a problem?

[Jsdirt]

Sure does. Sitting is usually what kills them, especially in cold, humid areas of the country that use lots of road salt, like New England and such.

[Doug_Scott]

Trying to find what is causing the front brakes to not release. Front wheels are hard to turn, rotors heat up. Can't get pressure to release on front calipers. Checked master cylinder and there does not appear to be any brake fluid in the return line. Plenty of fluid in reservoir. Any one else had such a problem?

 

Ok, I'll bite, where is this "return line" you mentioned? Also agree with checking for blockage starting at caliper bleeder screw, back up the fluid path to the master. If breaking the bleeder loose on caliper does nothing, you can stop at that point. It will likely be either sticking piston in caliper or rusted/corroded caliper sliders. Also take a look at the rubber seal under the master cylinder cap and see if it is swollen. For some reason your post reminded me of something I ran into many years ago. Back in early 90's I ran into a batch of cars that someone had put engine oil into master cylinder. The oil caused all the seals in the brake system to swell up. This was likely caused by some quick lube place in the area I was working, but, still something easy to check.

[Jsdirt]

That's a GM staple - you're lucky you got 10 years out of them. Calipers are probably junk.

 

These newer ones you can't even disassemble, clean, and reassemble to fix like we always used to do back in the day - the problem will remain, so it's not even worth the effort. Buy a pair of new ones and call it a day, as long as both brake hoses are good. I'd replace them anyway after 10 years though. Cheap insurance.

[Duelin]

Crack the brake hose at the caliper. Does it release? If so pressurize system again. Now disconnect the brake hose where it attaches to the brake line. Does the caliper release? If not the brake hose is collapsed. Not an uncommon problem.

[sahls01gmc]

^, What he said. If it passes those tests, crack the line at the master cylinder and see if it releases.

[6281219]

Vehicle is 10 years old but only has 16,000 miles on it. Does that make any difference with regards to the calipers?