General Technical & Electrical General technical and electrical discussion for the Ford Ranger that does not fit in any other sub-forum.

Why does my brake pedal pulsate, then the abs light comes on?

Thread Tools
 
Search this Thread
 
Old Dec 10, 2020
  #1  
Grandole96's Avatar
Thread Starter
|
Member
Joined: Dec 2019
Posts: 4
Likes: 0
From: Millers Creek, NC
Why does my brake pedal pulsate, then the abs light comes on?

Hey all, I have a 96 2.3l with rear abs, when I first inherited the truck the abs light was on, and stayed on 24/7, after I installed a new rear abs sensor the light went off, and with new front rotors and pads, the brakes work perfectly. But now, when braking downhill the pedal will pulsate a few times and then the abs light will come on, the pulsating will stop and the brakes are smooth again. Turing the engine off and on resets the abs light. OBD scanner couldn’t pick up any codes. Anyone have any suggestions?

thanks!
 
Reply
Old Dec 10, 2020
  #2  
RonD's Avatar
RF Veteran
iTrader: (1)
Joined: Jan 2014
Posts: 30,635
Likes: 2,952
From: Vancouver, BC
Pulsing in brake pedal means the ABS valve is opening and closing to prevent wheel lock up, so pulse pedal is "normal" if pressing brakes hard enough, but ABS light shouldn't stay on
OBD readers can't read ABS codes

Check brake fluid level, that can trigger ABS light when brakes are used and it won't go off until key is turn off and on again


 
Reply
Old Dec 10, 2020
  #3  
Grandole96's Avatar
Thread Starter
|
Member
Joined: Dec 2019
Posts: 4
Likes: 0
From: Millers Creek, NC
Originally Posted by RonD
Pulsing in brake pedal means the ABS valve is opening and closing to prevent wheel lock up, so pulse pedal is "normal" if pressing brakes hard enough, but ABS light shouldn't stay on
OBD readers can't read ABS codes

Check brake fluid level, that can trigger ABS light when brakes are used and it won't go off until key is turn off and on again

Yeah fluid levels are fine, and yeah the brakes will pulse a few times before ABS light comes on, and stays on. would bleeding the rear brakes possibly help?
 
Reply
Old Dec 11, 2020
  #4  
RonD's Avatar
RF Veteran
iTrader: (1)
Joined: Jan 2014
Posts: 30,635
Likes: 2,952
From: Vancouver, BC
No, if brakes are "spongy" that means air in the lines

 
Reply
Old Dec 11, 2020
  #5  
Grandole96's Avatar
Thread Starter
|
Member
Joined: Dec 2019
Posts: 4
Likes: 0
From: Millers Creek, NC
Originally Posted by RonD
No, if brakes are "spongy" that means air in the lines
They’re not necessarily spongy, just pulsing
 
Reply
Old Dec 11, 2020
  #6  
RonD's Avatar
RF Veteran
iTrader: (1)
Joined: Jan 2014
Posts: 30,635
Likes: 2,952
From: Vancouver, BC
Pulsing is most likely the ABS valve
It can be warped front rotor but there would be no ABS light associated with that
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
alehmann
General Ford Ranger Discussion
2
Mar 19, 2020 08:12 PM
Bird76Mojo
Drivetrain Tech
13
Feb 6, 2011 03:26 PM
mightyquinn55
General Technical & Electrical
9
Sep 26, 2010 02:38 PM
Fenech627
General Ford Ranger Discussion
2
Mar 18, 2008 03:14 PM
YellowEdge
General Ford Ranger Discussion
11
Apr 17, 2006 08:05 PM




All times are GMT -6. The time now is 09:11 AM.