Brake/Master cylider problems.

[88SporTruck]

Currently my truck has no brakes whatsoever. When I first got it they were working fine and it even seemed that the height sensing valve was still working. After it sat about a month I went to move it and the pedal goes right to the floor. Upon inspection I found no leaks or wet spots but the front resivoir of the master cylinder was bone dry.

 

Since I can't find any leaks I'm wondering if the fluid is leaking out into the Vac booster and getting burned up in the engine.

[Pete M]

it burned up while the truck was sitting?

[88SporTruck]

it burned up while the truck was sitting?

 

I had been starting it regularly and letting it warm up. At least 2x per week. I don't like to leave vehicles sitting a long time without running them.

[mule13]

did you pull the vacuum hose off the booster and see if it is wet?

maybe take the brake reservoir off the booster and look for fluid between there?

[88SporTruck]

The hose looks a little wet and the booster is not in the greatest shape. I fear removing the bolts will destroy it.

 

I'm trying to fix this on a budget since i am currently laid off. :mad:

[WBKrazy]

only the front half was dry? the front half holds the fluid for the rear brakes only, so the leak is somewhere in the rear system.. if none of the lines are leaking, the only other place it could leak from is the wheel cylinders.. since it's been sitting for a while you'll probably have to pull the drums off to check those.. but take a real good look where the lines go behind the gas tank as well, sometimes if a line breaks up there it can be hard to spot..

[88SporTruck]

It does not have tires (just put them on today) pulled drums and everything was bone dry.

 

I think ailens have abducted my brake fluid! :dunno: