Sinking brake pedal

[Sidewinded_idi]

so currently I'm having an issue of randomly at stop lights if I sit in gear (automatic) my brake pedal will start to get soft and my truck will start rolling forward.it doesn't do it when I first apply its only if I sit there holding the pedal on. Anyone else experience this?

 

[franklin2]

Usually that is your master cylinder leaking by. Double check the brake fluid level in the reservoir, if it's low you may have a leak somewhere. If it's not low, then your master cylinder is leaking by.

 

[Clb]

Stickies read the hydro boost thread
Booster
Mc
Rear shoe adj

 

[79jasper]

Usually that is your master cylinder leaking by. Double check the brake fluid level in the reservoir, if it's low you may have a leak somewhere. If it's not low, then your master cylinder is leaking by.

9/10 it's the rears being out of adjustment. Lol
At least on these trucks.

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[franklin2]

9/10 it's the rears being out of adjustment. Lol
At least on these trucks.

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You must have some super strong springs on your shoes if you can press the pedal down and it takes that much time to overcome the springs. Never seen that before.

 

[79jasper]

Must be. Lol

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