cause fluid to decrease in one reservoir section and increase in the other?
2006-08-07 16:37:50 · 11 answers · asked by Anonymous in Cars & Transportation ➔ Maintenance & Repairs
I just replaced the MC and it still does it.
2006-08-07 16:52:28 · update #1
The vehicle master cylinders I am familiar with are constructed with the common wall between the reserviors a slight bit lower than the external walls. This enables the brake fluid to remain at equal levels in both reservoirs until a serious leakage in one part (front or rear) of the system causes the fluid to drop below the level of that middle wall. With such a leak the brake fluid will be low in one reservoir, while remaining at a higher level in the other, but not full to the required mark. So, IOW, probably a leak in either the front or rear brake system.
If the front section of the reservoir is low, you have a leak in the rear brake part of your brake system. If the rear section is low, check for fluid leak in your front brakes.
2006-08-07 17:01:42 · answer #1 · answered by ½«gumwrapper 5 · 0⤊ 1⤋
Your brake master cylinder as two sections for safety reasons. The sections are two sizes. the largest section is for the front brakes. And I guess you have disc brakes. As your front pads wear down, the brake fluid will also drop. This is normal. If the rear brakes are disc, they will do the same. If you have drum brakes, the fluid height should stay the same or if you have a leak,the height drops. If you do have an increase in the small section, someone either added fluid or you have an internal problem in the master cylinder and may require changing. If your unsure and know a good mechanic, take it to him to be safe. The proportioning value works to adjust braking to weight being carried in the bed of a truck. It should not affect fluid height.
2006-08-07 16:58:57 · answer #2 · answered by mark w 2 · 0⤊ 0⤋
NO
The master cylinder may be faulty. I have seen many right out of the box that were faulty.
The proportioning valve reduces the pressure to the rear brakes. Regardless of what type of brakes a car has, the rear brakes require less force than the front brakes.
2006-08-07 18:07:17 · answer #3 · answered by Vulcan 1 5 · 0⤊ 0⤋
No, the brake fluid is hydraulic and it'll pushed in both sides with the same pressure, what can happen is that if the valve is damage may be is getting air from out side and that can make you feel that one side is breaking stop more that the other. You can put someone to push the brakes pedal meanwhile you position your self in the sides of your car to listen and to see if you hear a pfss or if there's a leak.
2006-08-07 16:46:48 · answer #4 · answered by Javy 7 · 0⤊ 0⤋
Sounds more like a bad master cylinder. Proportioning valve just controls the pressure to the rear brakes to keep them from locking up too easily.
2006-08-07 16:42:29 · answer #5 · answered by toejam 2 · 0⤊ 1⤋
Kelly f hit it on the nose. The first thing to check would be your hose. They will work fine to engage the brakes but do to a collapsed wall on the inside the pressure cant release when you let off the pedal. These are easy to test also. Hit your brakes and see if the wheel will turn if not break the line loose at the caliper and see if the wheel will turn. If not it has to be the caliper but yours is new so I dont think it will still be sticking. If you put it all back together and you still have problems just break fittings loose starting at the caliper one at a time back to the master. Good luck!
2016-03-27 03:11:10 · answer #6 · answered by Anonymous · 0⤊ 0⤋
It is possible.....I've never seen it, but it could happen. Generally, the power for the pressure is set by the throw and seals in the master cylinder. Check your pushrod. Some are adjustable and it may require adjusting. It may need to come back toward the firewall a bit (the push rod). That's where I'd start. Good luck.
2006-08-07 17:30:14 · answer #7 · answered by jeff s 5 · 0⤊ 0⤋
yes it will ,,this the most common cause for that,,it will also cause the brake system to be out of balance,,meaning the front may do all the work,,or the rear may do all the work,,either way it really plays tricks on you,,i own a repair shop,,and have done this for 35 yrs,so now i like to help people that really need it,may be this will help you figure it out,,good luck with it.
2006-08-07 16:45:50 · answer #8 · answered by dodge man 7 · 0⤊ 0⤋
I don't think so, but a bad combination valve or master cylinder could. Need to know the type of vehicle to be sure.
2006-08-07 16:45:43 · answer #9 · answered by Albert F 5 · 0⤊ 0⤋
it sound more like the master cylinder is bypassing.did you bleed the master cylinder before you put it on,if not then bleed the brakes and try that
2006-08-07 17:14:36 · answer #10 · answered by Anonymous · 0⤊ 0⤋