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2002 Toyota RAV4 Tight breaks after changing front break pa

Tiny
JOHNSONXU
  • MEMBER
  • 2002 TOYOTA RAV4
Brakes problem
2002 Toyota Rav4 4 cyl Four Wheel Drive Automatic

The problem is the front break became very tight and the break pads seems won't push back after the car is stopped by breaking. The break pads are new and the breaking is fine. I wonder is it because of the 2 bolt on caliper are too tight so the break pads would not "push back" after breaking. Also I removed the hose (the one uses to transfer break fluids) which was connected to the break, but I have put it back and took all the air out. Anyone got any idea of what's happening? Thanks
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Saturday, January 30th, 2010 AT 6:11 AM

6 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Could be the caliper piston is binding in its bore not retracting or the brake hose is collapsed internally acting as a one way check valve.
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Saturday, January 30th, 2010 AT 7:09 AM
Tiny
JOHNSONXU
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I think the piston retracts because when I accelerate, I feel the break is tighten only at the time I push the acce. Pedal down. I just did a quick google and some people said that the caliper pin should be cleaned before we put it back, but I didn't do that and the pins are rust.

Would this problem cause the pads do not push back after I release the break? Thanks
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Saturday, January 30th, 2010 AT 7:20 AM
Tiny
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Could be -clean it up and lubricate the hardwares double check for binding-when you replace the pads did you compress the caliper piston all the way in before you install the pads
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Saturday, January 30th, 2010 AT 7:27 AM
Tiny
JOHNSONXU
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Yes I did. Because I don't have the G/C Clamp tool, so I wrongly removed the break fluid hose (is it called break line?) To decompress then I can push the piston in. After that I put the host back and took all the air out from the bleeder and tightened.

By the way, are the caliper pins use to hold and lock the breaking pad to make it unmovable? Or the pins are suppose to make the pads slide-in/out when I break? Thanks
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Saturday, January 30th, 2010 AT 8:15 AM
Tiny
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It depends if its fixed or float type caliper-
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Saturday, January 30th, 2010 AT 8:24 AM
Tiny
JOHNSONXU
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Those pins are not fixed. The caliper looks like this,


https://www.2carpros.com/forum/automotive_pictures/472653_IMG_1751_1.jpg



https://www.2carpros.com/forum/automotive_pictures/472653_IMG_1752_1.jpg



https://www.2carpros.com/forum/automotive_pictures/472653_IMG_1760_2.jpg



This is not my car, but the caliper and inside looks the same as mine. Thanks.
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Saturday, January 30th, 2010 AT 8:34 AM

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