Question about 2004 Saab 9-3

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Can't compress calipers on rear brakes SAAB 93, 2004

Is there a one way valve or something that is not allowing the caliper to retract when I apply force to compress? I'm using a C clamp and bent the bar on the clamp trying to compress the caliper enough to fit over the new brake pads. Help???

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Rear disc brake pistons usually need to turned as you compress them. There is a tool you can rent or buy at most auto parts stores to do this job very easily using a 3/8 drive ratchet . Unless your SAAB is different than most newer cars with rear discs this should allow you to get the pistons back in to the caliper. Ask the counter man for one that fits or just look at the face of the piston to see if there are recesses to fit a certain tool into and match it up.

Posted on Jun 27, 2009

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Im not familiar with saab all that much but there are alot of calipers that actually screw inand this may be what type you have you should attempt to turn it inward.

Posted on Jun 27, 2009

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Same problem could compress the rear pistons and snapped a g-clamp trying

After reading this site I tried turning and pushing

I succeeded with needle pliers spaced for the holes in the piston with the handle ends into two half holes in a piece of wood so I could turn and push This still wasn't easy to do and after struggling and turning on one side on the other I had the bright idea of turning the car key to on (not start) and then it went in easy

I did open the bleed valve not sure if this helped once the ignition was on

The fronts are totally different just ease back the piston.

Posted on Apr 21, 2016

  • A Hoffman
    A Hoffman Jun 02, 2016

    Bleed valve was the trick. Ignition didn't do anything at best, made it harder at worst.

    Liked your idea about making a wood jig for your pliers. I couldn't hold pliers at right distance, turn piston, and apply pressure at same time. Even the tool set I borrowed from a parts store didn't have the right spacing.

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