Last post on Oct 07, 2012 at 4:46 PM
You are in the Chevrolet Blazer
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Chevrolet Blazer, GMC, SUV
Mar 05, 2012 (3:16 pm)
The 1990-2001 S10 and Blazer ABS system is a poor design and the 1995 - 2001 ABS was improved over the 1989-1994 ABS system. With ABS brakes it is important to flush the brake fluid every 10,000 miles, including the ABS modulator. It takes special equipment and technical knowledge to flush the ABS modulator and unfortunately, most auto repair shops don't have the expertise to bleed the air out of the ABS modulator. I found two Chevrolet dealerships that did not know how to bleed my 1991 S10 Blazer ABS system and two auto repair shops with ASE technicians on staff that told me.... "Take it somewhere else" . GM still has rebuilt 1995 - 2001 ABS modulators for sale for $800 MSRP. One company offered to rebuild my 1991 ABS modulator for $700. My 1991 ABS modulator was still good but it had air in it. I found a technician on Craig's List that came to my house and finally bled my ABS system but it too two people about 6 hours, manually cycling the ABS modulator and foot pumping. My brakes work good now but I don't think the ABS works anymore, at least it does go into the ABS test mode in the first 30 feet after I start driving the vehicle.
The ABS brakes on my 1994 Ford F150 truck has not worked in 12 years. All the brakes my Ford truck has now is standard brakes but at least the Ford ABS modulator does not have any air in it. It seems that the Ford ABS system never had problems with air in the modulators. The brakes on my Ford truck stops fine in city traffic but the rear brakes lock up and skid on wet pavement.
You MUST cycle the ABS modulator to expel the air when you bleed the ABS brake system. If you don't, there will still be air in the ABS modulator and the brakes can go to the floor. In order to cycle the modulator on a 1989-1995 ABS modulator, it takes a GM Tech 1 scan tool . On the 1996-2001 ABS, it takes a different scan tool.
The GM Tech 1 scan tool is obsolete and a good used GM Tech 1 scan tool cost $400 - $500. There is no auto repair technician that will pay that much for a tool that he may only use once a year.
#106 of 116 Re: ABS [duntov]
Mar 05, 2012 (3:21 pm)
Many Thanks. Looks like I find a reputable dealer.
#107 of 116 2002 Blazer brake suggestions
May 06, 2012 (9:20 am)
Do have any suggestion for a vehicle that stops 600 times a day for delivery. I am using OEM parts now, would slotted rotors and different pads last longer?
#108 of 116 No better
May 06, 2012 (11:43 am)
Slotted and vented rotors are for high speed stops. Those rotors expel heat plasma (gasses) that is created between the pads and the rotors. If left to remain between the pads and the rotors during a high speed stop, , the plasma will lubricate the pads and reduce their braking ability.
I prefer Bendix CT3 ceramic brake pads for city or highway driving. They are quiet, have a good pedal feel, low brake dust, less rotor wear, they are long wearing and have excellent braking in all temperatures. .
#109 of 116 98 Blazer 4wd ABS engages at slow speed
Jun 08, 2012 (2:11 pm)
My ABS keeps engaging when I go to stop at a slow speed. I was told by the dealer that it was the right front ABS sensor, I did not choose to pay them $400 for a $65 part, and did have it replaced with an ABS sensor--however, I still have the problem. Someone said something about an ABS sensor in the bearing--did we get the wrong part replaced--help, I'm running out of money and afraid to drive the car and only do when I have to. Thank you.
#110 of 116 Replace hub and sensor
Jun 08, 2012 (4:31 pm)
GM/ACDelco 15997039, Sensor, front wheel, speed. 4WD......$50.00 ($101.24 msrp)
You may be required to replace the wheel hub when using a new sensor if the sensor pick up end is hitting the reluctor ring (tone ring).
#111 of 116 Re: Replace hub and sensor [duntov]
Jun 09, 2012 (2:32 pm)
Thank you for your help
#112 of 116 Re: 98 Blazer 4wd ABS engages at slow speed [gmbutkus]
Jul 24, 2012 (11:59 am)
my 2000 Blazer did the same thing. I ended up just pulling the fuse for it and now I have no ABS but the old-school brakes work fine. I did that about 2 years ago and have not had any issues. The ABS light does stay on all the time.
#113 of 116 Re: Another cause of sticking [jlflemmons]
Aug 16, 2012 (8:22 am)
SURE, saw more than once!