1992 Chevy Caprice Left front caliper doesn't release prope

CPOTOCKY

MEMBER
1992 CHEVROLET CAPRICE

Brakes problem
1992 Chevy Caprice V8 Two Wheel Drive Automatic

I have replaced the 2 front calipers and pads on my 92 Caprice wagon because the left (drivers side) caliper was binding and causing the wheel to get hot and smell. After replacing both front calipers and pads, and bleeding the brakes, the left caliper still binds. The right releases OK.
What can cause this problem? Is it the master cylinder? The ABS system? The ABS sensor? I'm at a loss.
Thanks
Cliff

4 Replies

DOCFIXIT

MECHANIC
18,828 POSTS

Hi
Flex brake line is the culprit they are made of several plies the inner ruptures allows fluid to get to caliper but closes offf its return. Pump brakes with caliper locked open bleeder if pressurized fluid shoots out and caliper frees then replace flex line.
Hope this helps
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Friday, December 4th, 2009 AT 9:42 AM

CPOTOCKY

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3 POSTS

I replaced the flex line on the left side when I replaced the caliper. I tested the brakes as you suggested and some fluid did leak out freeing the wheel. What else could cause this pressure from being released?

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+1

Friday, December 4th, 2009 AT 10:19 AM

DOCFIXIT

MECHANIC
18,828 POSTS

Floating caliper check mounting bolts and bushings and lube. Can't think of what might be checking pressure to just that wheel.

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Friday, December 4th, 2009 AT 10:33 AM

CPOTOCKY

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3 POSTS

Everything is new and I lubed it just like the other side and the way I have done this for years on other cars. Can it be the ABS system? As stated, the wheel does free up when I open the bleed fitting. Only a small amount of fluid comes out.

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Friday, December 4th, 2009 AT 11:14 AM