2nd Generation S-series (1995-2005) Tech Discuss 2nd generation S-series (1995-2005) general tech topics here.

brake drag and pulsating brakes

Thread Tools
 
Search this Thread
 
  #1  
Old 03-26-2012, 03:37 PM
99blazer604's Avatar
New Member
Thread Starter
Join Date: Aug 2010
Location: Vancouver
Posts: 4
99blazer604 is on a distinguished road
Default brake drag and pulsating brakes

For about a year now my brakes have felt like they are dragging, or the vehicle just feels sluggish overall. Also when braking the brakes pulsate similar to ABS but different.

1999 Chevy blazer 4x4, 200k
new rotors, calipers, pads, last year, also new wheel bearings (somewhat suspect the nut may be torqued too tight)

I raised the front of the truck, took off both wheels, it seems as though the brake pads were engaged on the rotors, but i hear that these brakes don't have a mechanical retract, that the pads just come off the rotor while driving from vibration?
Should i be able to easily turn the hub?, when no brakes are applied at the pedal, it seems quite difficult to spin the hubs.

I believe i also replaced the brake lines at the wheels at the same time.
 
  #2  
Old 03-26-2012, 07:23 PM
50lb_cat's Avatar
Super Member
Join Date: Mar 2012
Location: Iowa
Posts: 1,024
50lb_cat will become famous soon enough
Default

Did you grease the caliper pins? Do you smell brakes? Are the wheels hot to the touch? You should be able to spin the fronts fairly easily.
 
  #3  
Old 03-26-2012, 07:38 PM
warthogdriver's Avatar
BF Veteran
Join Date: Aug 2009
Location: Bay City, Michigan
Posts: 2,785
warthogdriver is a jewel in the roughwarthogdriver is a jewel in the roughwarthogdriver is a jewel in the roughwarthogdriver is a jewel in the rough
Default

^^^ double check the caliper pins...sounds like they are jamming up on you.
also look up the torque specs...they are on here if you search..or google for your year of blazer
 
  #4  
Old 03-27-2012, 09:40 PM
abig84's Avatar
BF Veteran
Join Date: Aug 2009
Location: munster indiana
Posts: 3,424
abig84 will become famous soon enoughabig84 will become famous soon enough
Default

easy way to tell is park on a verrrrrrry slight hill and put it in neutral the car should start to roll really slow. or just put it in neutral while driving slow and see how it stops. i see a ton of fullsize chevys where the rear pads rot to the slides and either dont work or lock up against the rotors... s10s i do see occasionally but not as much
 
  #5  
Old 03-27-2012, 10:48 PM
4x4blazerguy's Avatar
Senior Member
Join Date: Mar 2008
Posts: 975
4x4blazerguy is on a distinguished road
Default

My thought was a possible wheel speed sensor. My 98 feels like it is pulling to one side. I have an ABS light that goes on & off. Sometimes it pulsates. Just a thought
 
  #6  
Old 04-11-2012, 05:37 PM
shanerouleau's Avatar
New Member
Join Date: Apr 2012
Location: Sault Ste. Marie
Posts: 5
shanerouleau is on a distinguished road
Default

same sort of problem. i smell burning brakes and they are really soft. rotors and pads looks good fluid seems fine. how do u grease or check the torque specs?
 
  #7  
Old 06-02-2012, 10:55 AM
99blazer604's Avatar
New Member
Thread Starter
Join Date: Aug 2010
Location: Vancouver
Posts: 4
99blazer604 is on a distinguished road
Default

I'm going to look at them again today. Replace anything that I think looks like its an issue. I'm done with pulsing brakes I can't take it! The rotors were fine before, hopefully they still are!
 
  #8  
Old 06-02-2012, 01:00 PM
war00's Avatar
Junior Member
Join Date: Dec 2011
Location: Little Britain, Ont.
Posts: 301
war00 is on a distinguished road
Default

more than likely if the caliper pins were siezed the rotors will be warp. the blazers had issues with the rear caliper pins siezing. saw it all the time when working at the stealership. best thing to prevent this is every 10k pull the wheels, pull the pins, clean em, grease em, install and rotate your tires, torque and your good to go.
 
  #9  
Old 06-27-2012, 05:02 PM
Skibum458's Avatar
Beginning Member
Join Date: Jan 2009
Posts: 10
Skibum458 is an unknown quantity at this point
Default

I've had pulsating brakes the last 2 weeks and ended up replacing all the rotors and pads since there were no obvious defects. On the back left the emergency brake pad fell out when I pulled the rotor and on the rear left on of the sliders were frozen. I don't really know which component was the culprit but there's no more pulsing. I also found a bad lower ball joint in the process but that nightmare is another story...
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Krnt
2nd Generation S-series (1995-2005) Tech
5
11-20-2017 09:05 PM
mr.vls
1st Generation S-series (1983-1994) Tech
8
08-24-2013 02:50 PM
dano440
Steering, Suspension & Drivetrain
0
05-06-2012 07:42 AM
abig84
General Chat
10
01-19-2012 08:41 AM
zero psi
Sights N Sounds
5
01-15-2006 07:27 PM



Quick Reply: brake drag and pulsating brakes



All times are GMT -5. The time now is 10:39 AM.