Decompressing Rear Brake Calipers

I believe those have a piston that get turned in as pressure is applied. Look for threads on the piston or a slot going through the center of the face of the piston. There is a special tool needed for that. hopefuly it did't get damaged from forcing it.

I noticed 2 notches on the piston but I did not see any treading. I didn't force the piston either. I got to the point where there is pressure and notice that the piston didn't move so I stopped and now I'm here looking for help. Thank You for your comment I'll look again.

You need a spanner wrench to turn those calipers in, I was wrong on the description, but right on the tool.

Thank You very much I'll look for the wrench. I'll let you know if that solves the problem.

You can rent a tool from AutoZone, or other auto parts stored just for that purpose. At AutoZone in Austin Texas, it rents for $29. You get your money back when you bring back the tool. If you don't bring it back then the $29 covers the cost of the tool.

I found a universal piston turner at Advanced AutoParts for $11 and that fixed it. The tool is a square block with 5 different settings for different sized pistons. Thanks for your help.

Cool! Another success story!