Questions and Answers
Buick Brake Fade
Q. While waiting at a stop light with foot on the brake, the brake pedal will slowly fade down about 1/2 " after approx. 15 seconds.
- 1993 Buick LeSabre, 3.8
- 53000 mi.
- ABS
- P/S, A/C, Cruise
Had complete brake job done at 43,000 miles, no apparent leaks, master cylinder full. My thoughts, needs bleeding. No hissing sounds to indicate a leaking check valve.
Your thoughts are appreciated.
ThanksA. I agree, I think there is a little air in the system that needs to be bled out.
I would recommend a brake fluid flush and fill with new fluid and a good bleeding. Brake fluid absorbs moisture from the air and deteriorates over time, that's why it should be changed every two years. With an ABS system, I would recommend it be vacuum bled instead of the standard method. Most ABS systems have to be vacuum bled to insure all the air is bled out.
Additional Information provided courtesy of AllDATA
