Brakes Pulsating

[94Sierra4x4]

Warped rotors? Defective calipers, worn out pads? What do you guys figure? Truck'll damn near hop up and down off the ground when braking. Shocks are pooched so I'm assuming thats why I've got the hopping effect.

What could cause a warped rotor?

Thanks fellas.

 

[96Z71ECSB]

Dead shocks don't help.
Have you checked to see if your front brakes are done. Warped rotors are usually a sign that they are almost done.
The rotors might be done also (to thin). Have them checked for thickness. They may be out of spec.
Rotors are cheap. Put new ones on with some decent pads and call it a day.
Get some shocks installed while your at it.

 

[94Sierra4x4]

Roger that, I've got shocks, was going to wait to get a few projects done at once.
I haven't checked the pads yet. I'll get 'er done this weekend.
Thanks man. You pretty much confirmed what I was assuming, I'll have a good look at them today and most likely just replace them regardless.
I did get a little squeak out of 'em yesterday, they must be getting down there.

 

[oohunter04oo]

Warped rotors will cause the steering wheel shake very badly, warped drums will cause a vibration in the seat and the pedal truck when stopping. So you probably have warped drums. Take them all off, bring them to Oriellys and get them all resurfaced.

 

[1997chevydriver]

Warped rotors will cause the steering wheel shake very badly, warped drums will cause a vibration in the seat and the pedal truck when stopping. So you probably have warped drums. Take them all off, bring them to Oriellys and get them all resurfaced.

Warped rotors will cause pedal pulse too

 

[94Sierra4x4]

Warped rotors will cause the steering wheel shake very badly, warped drums will cause a vibration in the seat and the pedal truck when stopping. So you probably have warped drums. Take them all off, bring them to Oriellys and get them all resurfaced.

No O'Riellys here, steering wheel shakes. Pedal pulses.
Assuming warped rotors now for sure.

Also have a clunk when taking off and coming to a stop. I'm assuming its the u-joints, but could it be in the drums?
I did a highway trip a few days ago, and in OD I was stuck at 70km/h coasting down hill. Popped into neutral and I stayed at 70km/h.. I assumed sticky park brake at time because I hadn't used it much until that day. Brakes dragging? What would cause that?

Warped rotors will cause pedal pulse too

Pedal pulse, very prominent when at slow speeds, feel the pedal come out/in/out/in against my foot.


Thanks for the information guys.

 

[oohunter04oo]

wheel if the steering wheel shacks get rotors or resurface them. if you still feel a vibration do the drums next. you may need to lube your driveshaft slip yoke to fix the clunk, may not be ujoints.

 

[great white]

Rotor/rotors

 

[94Sierra4x4]

wheel if the steering wheel shacks get rotors or resurface them. if you still feel a vibration do the drums next. you may need to lube your driveshaft slip yoke to fix the clunk, may not be ujoints.

Awesome, I'll get the rotors on first and see how it is.
Roger that on the slip yoke. I'll try that first.

Rotor/rotors

Thanks!

 

[94Sierra4x4]

Just updating now that I've finally thrown the other rotors on there.. It was most definitely rotors causing the pulsating. Brakes feel brand new. Pads had lots of life left.