This is one the mechanic can't answer. This is the 2nd winter now that when I leave my Tracker sit for 4 or more hours and then start it up and go a couple of hundred feet and get the speed up to at least 25 mph - the brakes are EXTREMELY hard to push down. Then, after that the brakes work just fine. It seems that this does NOT do this in nice,warmer weather. I had taken it to a repair shop and they could not find anything wrong. How can this 'minor' problem be solved?
2007-03-11 05:29:27 · 4 answers · asked by mrhalloween17268 6 in Cars & Transportation ➔ Maintenance & Repairs
Flush the system. Sounds like the lines are freezing. Brake fluid attracts moisture, and if any got in the system, it could be freezing in the cold temps. Good luck!
2007-03-11 05:38:17 · answer #1 · answered by Doug K 5 · 0⤊ 0⤋
Your vacuum booster check valve has moisture on it. When the car is shut off overnight the valve freezes shut and you only get a couple of power assisted brake applications til the vacuum is used up. Eventualy heat from the engine and interior of teh car unfreezes the valve allowing engine vacuum back into the booster.
Replace the check valve. Shouldn't be very expensive.
By the way, the valve is located at the end of the large vacuum line where is connects to the brake booster. It should just push into a rubber grommet
2007-03-11 12:38:12 · answer #2 · answered by Delphi 4 · 0⤊ 0⤋
Somethings wrong with your brake fluid, brake cable, or the pump for it (I think there is one). I would get the dealership to look at it because they know what they are doing. But I hope it get's fixed for cheap!
Good luck!
2007-03-11 12:38:39 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Flush the brake lines.
Water in the lines is freezing.
2007-03-11 12:36:50 · answer #4 · answered by Mr. KnowItAll 7 · 0⤊ 1⤋