Spongy brakes?

[rs657f]

Hello all. I know the title is vague but i have a question about this. I am very well rounded when it comes to disc brakes and how to maintain them. I have a 96 tahoe 5.7 and this is my first time dealing with rear brake drums. I had the the master cylinder and both brake cylinders replaced in the rear. I was told by my mechanic that the pedal would be spongy for a while due to the fact these rear drums are self adjusting. How true is this? Im kind of nervous to drive this thing. The pedal does pump up all the way prior to turning the car on. IT doesnt take a lot to stop the truck but it doesnt stop like i would like. Let me know what you all think.

Thanks

 

[#1taho]

The drums need adjusting almost monthly. It's a major down fall with that breaking system. But to rule that out bleed it again just to be sure. Don't want to have any issues cause of a bit of air. How are the front brake pads , rotor size, and caliper pins and piston movement?


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[SunlitComet]

they always seem to have a bit of spongy but after install the rears will self adjust as you apply brakes while in reverse on duo-servo systems. if you have have the police package it happens in forward. if trailing/leading type it happens on any brake application. if one has to do it manually regularly then something is wrong.

 

[rs657f]

the rest of the braking system looks good. I greased the slid pins and replaced the pads. Ill have to try some more trouble shooting this weekend. I havent taken the backs off but from what i was told the shoes and everything were in decent shape. Ill have to catch a youtube video and attempt to replace that stuff if i dont see any results from the self adjustment

 

[roy72004]

Try to manually adjust the shoes, they may have left em quite loose so it's taking a while to adjust. I always self adjust mine kinda tight when I replace shoes or drums and let them even themselves to the drums that way. Altho, before I did my axle swaps, the brakes were always spongy. I haven't driven an obs that didn't have some softness to the pedal.

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[rs657f]

Ok. I will keep trying to brake and let them adjust themselves before I jump in and screw something up. It may just be me being paranoid since I haven't driven an older truck in so long. I will give it until this weekend to adjust themselves a bit more before I dive in. thanks!

 

[2000tahoeZ71]

I spent a great deal of time manually adjusting the braked when I replaced the rear drums/shoes/hardware on mine. It was incredible how much of a difference it made on the pedal feel and braking. I adjusted the shoes out until I had a little trouble getting the drum on, then backed off a couple of clicks.

 

[Richamos1]

I have a 2000 Limited which has the police suspension package. So to adjust those do you hard brake going forward?

 

[SunlitComet]

doors and drive type and number of lugs on axle please.

 

[2000tahoeZ71]

2000 limited is a 4 door with 5lug axles. correction to my error, yes all limiteds had theZ60 police package