Another brake problem question Master Cylinder?
#1
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Another brake problem question Master Cylinder?
When I am at a traffic light, my brake peddle slowly sinks down. If I dont add pressure, the truck will start to move forward. (auto) Is this a master cylinder problem? Can these be rebuilt? SHould I get a new one? Aftermarket, rebuilt, Toyota only?
Could it be something else?
Could it be something else?
#2
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Originally Posted by trythis
Is this a master cylinder problem? Can these be rebuilt? SHould I get a new one? Aftermarket, rebuilt, Toyota only?
Could it be something else?
Could it be something else?
power brakes? maybe a vaccum leak.
if you pump it, does it then slowly fade again? or stay firm?
you have checked the fluid levels, right?
will it stop creeping with the parking brake applied? does this do anything to the feel of the pedal?
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Fluid is all the way, a little over the max line. It does fade with pumping. Can I just replace teh seals? Or do I have to buy the whole master cylinder?
#5
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Check the rear wheel cylinders and the front calipers for a leak first. One the rear, slightly pull back the dust covers to see if there is any brake fluid in them. If you cannot find a leak in any of those then it is most likely the master cylinder. I have heard that master cylinders should be honed when rebuilt, but I do not know for sure. I do not think a new one is rediculously expensive, so I would just buy a new one instead of rebuilding.
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I just had a similar problem and it turned out to be the brake job from hell, but the truck really needed it. I ended up replacing the master cylinder and the both front calipers and the rear wheel cylinders and majority of the brake line. All of my brake components where too rusty. I broke off every bleeder trying to crack open, broke most of the brake lines trying to remove. So, be ready to have a lot of patience.
Jake
Jake
#7
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Originally Posted by the_supernerd
Check the rear wheel cylinders and the front calipers for a leak first. One the rear, slightly pull back the dust covers to see if there is any brake fluid in them. If you cannot find a leak in any of those then it is most likely the master cylinder. I have heard that master cylinders should be honed when rebuilt, but I do not know for sure. I do not think a new one is rediculously expensive, so I would just buy a new one instead of rebuilding.
Fred
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