Mystery of the disappearing brake fluid...

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Frogman

Junior Member
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Mar 15, 2026
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Location
Durango, CO
First Name
Rick
Truck Year
1981
Truck Model
GMC K1500
Engine Size
5.0
Ok friends, here is something I have never experienced. '78 Chevy. This is my elderly neighbor's plow truck. I moved it for her last fall and the brakes did not feel right. Popped the cap of the reservoir and the front chamber was empty. Bone dry. I guessed probably a bad wheel cylinder; I would deal with it in the spring. I went out last week to fill it up and bleed the brakes so I could move it to investigate. Popped the cap and now both chambers have fluid????
Thoughts?
 

Smtty58

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Location
Mass.
First Name
Lyle
Truck Year
1990
Truck Model
R3500 Crewcab
Engine Size
350
Is it possible somebody went to move it after you parked it? They may have noticed the brake issue and filled it.
 

Sad Sack

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Nebraska
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Goober
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1985
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C15
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305
Prankster?
 

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