Last post on Oct 07, 2012 at 4:46 PM
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Chevrolet Blazer, GMC, SUV
#16 of 116 Bleeding ABS brakes
May 03, 2010 (6:40 am)
Bleeding ABS brakes is a sore spot on the Chevrolet S10 Blazers. Most auto repair shops give up trying to get the correct brake pedal travel after about 2 hours of foot pumping. The shop then will tell the customer that the ABS modulator is bad and needs to be replaced. The ABS modulator costs $700 for a rebuilt unit for the 1985 -1994 ABS brake systems. Rebuilt modulators are not available anymore and the customers old ABS modulator must be rebuilt by some company that rebuilds auto parts for auto parts retailers. The cost of rebuilding and replacing the ABS modulator usually causes the owner of an older S10 Blazer to junk the vehicle. Most auto repar shops will not attempt to replace a ABS modulator a 1985 - 1995 S10 Blazer unless the customer puts up a $500 deposit before the work begins. Auto repair shops are afraid when the job exceeds the cost of the vehicle value, the customer will walk away from the job and give the S10 Blazer to the auto repair shop.
Most of the time all that is wrong with the ABS brake system is air in the lines. It takes an extraordinary amount of time, a special procedure and a l;ot of patience to bleed those brakes especuially if you don't have the proper tools. . If a auto shop technician tries to foot bleed the S10 Blazer 4WD ABS brakes he may never get correct brake pedal travel because his is merely pushing air back and forth in the brake lines. . A pressure bleeder is required to maintain a constant pressure as the air is pushed out of the system and most auto repair shops don't have a pressure bleeder that fits an S10 Blazer master cylinder. A special reverse pressure brake bleeder is available that pressurizes the brake lines from the wheel cylinders to the master cylinder and expells the air out of the master cylinder. . That special brake bleeder kit cost about $300 and most auto repair shop technicians will not invest that much money in a brake bleeder kit that they may not use but once every five or ten years.
About 1995, the NTSB had a hearing about the earlier ABS brake systems on the S10 Blazders but GM fooled the NTSB and blamed the failures on the drivers not knowing how to use ABS brakes and got out of an expensive recall.
You are fortunate to have a 2000 Blazer because GM made vast improvements to the ABS brake system since 1996 and the later model ABS modulators are much more reliable..
#17 of 116 2000 Chevy Blazer LS 4wd rear calipers sticking
Feb 06, 2011 (3:29 pm)
After pressing on the brakes the rear calipers do not release causing the back tires to get extremely hot while driving for some time.When I am coming to a stop I feel brake grab. I do not know very much at all about what causes this, if I need to replace calipers and hoses or what. I would really like some feed back before I take it to the shop and spend alot more than nessesary. Thank you...
#18 of 116 Re: 2000 Chevy Blazer LS 4wd rear calipers sticking [danigirl]
Feb 06, 2011 (6:10 pm)
Just go get a couple rear calipers and install them. This is a common problem with S10 rear disc..
#19 of 116 Re: 2000 Chevy Blazer LS 4wd rear calipers sticking [danigirl]
Feb 07, 2011 (12:38 pm)
S10 rear calipers just don't lend themselves to being reused. The good news is that they are not that expensive, and rebuilts work fine and are readily available.
Pick a good parts house and replace both. Quick and easy fix.
#20 of 116 Re: Brake Noise in 2002 LS Blazer [ezdays]
Mar 16, 2011 (2:37 pm)
Feel that back wheel after driving on it for a little bit and see if it's hot. If it is I would check to see if your back brakes are dragging a little. Might not be the problem, but it's definitely worth checking.
#21 of 116 2002 Blazer LS 2 Dr rear wheel drive
Jul 17, 2011 (3:43 pm)
I have this thump thump with I apply my brakes makes the car rattle, but when you drive it is smooth sailing no problem. The car did this before I did anything to it. I have put new tires on it, had them balanced, front alignment, put all new rotor's and pad's on the car and still have the same problem. Now I don't know??
#22 of 116 Re: 2002 Blazer LS 2 Dr rear wheel drive [zzzroc]
Sep 26, 2011 (9:12 am)
My 2002 Blazer has developed the same problem at 74,000 miles. I did a visual inspection of all components and checked all calipers to see if they were properly "free floating". One of the rear calipers (drivers side) appeared to be somewhat sticky whereas the other passenger side floated smoothly. I have not changed any parts yet since I want to check out other possibilities like wheel bearings, warped rotors. I did check tires by moving the spare to each wheel with no change in the thump. Maybe the rear caliper drags on the disc, overheating it, causing it to warp, resulting in uneven friction on the disc's surface. I wonder if the warping could be permanent even on a new replacement disc if the caliper is not replaced? At this point I'm not sure what the problem is.
#23 of 116 Chevrolet Blazer Brake Problems
Oct 09, 2011 (7:54 pm)
#24 of 116 2001 jimmy brake indicator problems
Apr 05, 2006 (8:05 am)
I have a 2001 Jimmy SLT truck. i have had no major problems and I'm hoping this is not one. First, when I first start Jimmy, it seems as though my accelerator is locked. I have to push hard to pop it loose. Jimmy jerks off(of course) because I have to give the accelerate one hard pump. After then everything is fine until I cut Jimmy off and have to start again. What is this and is it an easy fix?
Next, The brakes seem to be fine but, the indicator light for ABS and Emergency brakes come on all of the time. Jimmy has no squeaking or scrubbing in the brakes. Is this a brake problem or a faulty indicator light problem?