Brakes stay on

[01Crewcab7.3]

So on the 96, over night somehow the brake lights come on. Now I have noticed that while driving I have to lift the brake pedal up with my toes or the brakes will stay on while driving. Any ideas??


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[SuperCrutyPS]

Just throwing this out. Are you having any trouble with the brakes? Like being soft at first, maybe having to pump them? Could the brake shaft seal be leaking around the shaft allowing the brake pedal to slip down?

Just some thoughts.....

[01Crewcab7.3]

The pedal does seem a bit soft but I did not know if it was normal or not as I have never driven another OBS.


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[BigFuel]

Sounds like its time for a master. Undue the bolts holding it too the booster and separate the two. See if its leaking back into the booster as well.

[01Crewcab7.3]

Originally Posted by BigFuel

Sounds like its time for a master. Undue the bolts holding it too the booster and separate the two. See if its leaking back into the booster as well.

I'll check this out tomorrow and report back. Thanks.


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[FlagMissed]

Might just be low on brake fluid. Some thing happened to me on on my 01.

[01Crewcab7.3]

I will try bleeding them tomorrow and see how that does. If no success I will pull the MC and see if I can find anything. The weird thing is a searched high and low and can't find any fluid anywhere, so aside from into the power boost, where is it going?

[85_305]

Originally Posted by BigFuel

Sounds like its time for a master. Undue the bolts holding it too the booster and separate the two. See if its leaking back into the booster as well.

Thats what I'm thinking. Vacuum sounds like its getting weak.

[01Crewcab7.3]

I wasn't able to bleed the brakes before I had to take the truck to work this morning. However I did top off the fluid and the pedal seems stiffer and actually comes back up on it's own now. Now to find the leak tonight, in the dark, after a 14 hour day...


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[SuperCrutyPS]

I've heard that sometimes it leaks inside the cab. Fluid runs down the inside of the firewall behind the insulation. Not saying yours is leaking there, but it might be a place to look.