Question about 1989 Ford Ranger

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1991 Ford Ranger w/ABS Rear brakes lockup

Rear brakes lockup especially on wet pavemant

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I have a 94 ranger with abs (front only) make sure it has sensors@ back

Posted on Jan 30, 2009

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Sounds like you need to replace the wheel cylinders also check brake shoes and adjust properly upon reassembly

Posted on Jan 30, 2009


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1998 ford ranger repair manual for the abs brake system

If the brakes work but you have to push very hard, try checking the vacuum supply to the brake booster with the engine running.

Oct 19, 2013 | 1998 Ford Ranger

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1994 ford aerostar abs light

check the sensors on each wheel of the brakes ,their is a sensor on each wheel so check the wires to these sensors are not broke or corroded first then report back as star trek is on soon, then i will explaiun how to test them forget the code reader as the ABS will reset itself as soon as it reads a signal from all four wheels its the only onboard computer that does

Feb 09, 2012 | Toyota Sienna Cars & Trucks

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I replaced the brake master cylinder on my 91 Lincoln Mark 7 with a non high pressure master cylinder and the rear brakes do not hold. Do I need to change the cal. on the rear also?

ANTI-LOCK BRAKE SYSTEM (and HCU-Hydraulic Control Unit)
General Information The 4-Wheel Anti-lock Brake System (ABS) is an electronically operated, all wheel brake control system. Major components include the power brake booster, master cylinder, the wheel speed sensors, and the Hydraulic Control Unit (HCU) which contains the control module, a relay, and the pressure control valves. The system is designed to ****** wheel lockup during periods of high wheel slip when braking. Retarding wheel lockup is accomplished by modulating fluid pressure to the wheel brake units. When the control module detects a variation in voltage across the wheel speed sensors, the ABS is activated. The control module opens and closes various valves located inside the HCU. These valves, called dump and isolation valves, modulate the hydraulic pressure to the wheels by applying and venting the pressure to the brake fluid circuits. Some models are equipped with a Traction Assist (TA) system. The TA system senses wheel spin upon acceleration, turns on the Hydraulic Control Unit (HCU) pump and applies fluid pressure to the appropriate rear wheel. Two additional isolation valves in the HCU will also close to permit fluid to flow only to the rear wheels. The TA system monitors TA usage to avoid overheating the rear brakes. If the system does sense brake overheating, the ABS module will inhibit TA operation until the rear brakes are permitted to cool down.
SYSTEM COMPONENTS The anti-lock brake system consists of the following components:
  • Vacuum booster and master cylinder assembly
  • Hydraulic Control Unit (HCU)
  • ABS module
  • Wheel sensors
  • Pedal travel switch
On 1992-1994 and 1995-00 a scanner is used to perform the brake bleed. But on yours, I think it's different according to the manual.
What do you mean change the cal. on the rear also? Do you mean Caliper?

Jul 26, 2010 | 1991 Lincoln Mark VII

1 Answer

Ford ranger 91 4 cyl 2.3- rear brake vibration or bouncing. can it be abs problem?

Double check the rear shoes foir heavy glazing and wear. My recomendation would be to replace the rear shoes but to get rid of the issue, to have the drums turned(machined) or replaced.

Apr 10, 2010 | 1991 Ford Ranger Supercab

2 Answers

ABS System

abs malfunction buy a new unit

Jun 02, 2009 | 1999 Ford Ranger SuperCab

1 Answer

Ford Ranger 150 Pick Up Truck

If you are talking about the back brakelights being on continuously, some Ford products have a sliding plastic brake switch under the pedal which sometimes needs adjustment after a brake job. If you are talking about dash lights, then it sounds like the ABS or proportionate valve is stuck off-center. Some vehicles have to be bleed in a factory recommended sequence which keeps that problem from happening.

Apr 23, 2009 | 1991 Ford Ranger Supercab

2 Answers

Abs and brake light has come on in a 2000 ranger 6 cyl

Had a similar issue on an old Mazda pickup that was really a Ford. I found that the issue was with an ABS sensor mounted near the rear axle. When I opened the cover, I found a lot of corrosion. I scraped out what I could and sprayed it down liberally with some electrical contact cleaner. I did not have any ABS function to my brakes althought they still worked. 2 or 3 days after my cleaning efforts, the ABS and brake light went out and the ABS function returned to my brakes! I think a junk yard wanted a couple hundred bucks for that part. Check and see if you have the actual abs function (ie brake pedal pulsing during a skidding hard braking action). This may very well be your isse and it may be a very cheap fix!

Mar 29, 2009 | 2001 Ford Ranger Regular Cab

1 Answer

2003 Ranger FX-II ABS light on

This isn't hard to do at all really and should be easy to procure the part from the local parts store. There is only one little screw holding it in


  1. Raise and support vehicle.

  2. NOTE: Clean off dirt and foreign material that may have collected around the rear anti-lock brake sensor before removal. Remove the rear anti-lock brake sensor.
1 Disconnect the rear anti-lock brake sensor electrical connector. 2 Remove the bolt. 3 Remove the rear anti-lock brake sensor.
  1. NOTE: Thoroughly clean the mounting surface. NOTE: Inspect the anti-lock brake sensor O-ring for damage; lightly lubricate the O-ring with axle lubricant. To install, reverse the removal procedure

Nov 05, 2008 | 2003 Ford Ranger Regular Cab

1 Answer

Brakes pulsate real hard

That is just the ABS system at work. It is supposed to prevent your wheels from locking which often makes the brake pulsate, especially in wet weather or or snow or ice. The only way to really stop this is to disable to ABS by unplugging it and removing the fuse. This will make the ABS light appear in your dash, but your brakes will stop pulsating.

Jul 14, 2008 | 1997 Pontiac Sunfire

1 Answer

Rear wheel brakes lock up

It could be a couple of things..Either you have a fluid leak and its getting on the brake pads making them grab or it could be the abs system itself.. There is a speed sensor on the rear axle which also controls the abs.. That can be changed easily and isnt too expensive.. Kip

Jun 24, 2008 | 1998 Ford Ranger SuperCab

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