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Topic: abs kicking in when stopping (Read 812 times) |
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chris-durham
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abs kicking in when stopping
« on: Jun 6th, 2008, 12:00pm » |
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Hi all,
ive a problem with the abs on my 96 scorpio, everytime im just about to come to a halt at say 2-5mph, the abs kicks in, it doesnt do this at higher speeds, just when the car is about to stop? Has anyone had a similar problem? any help greatly appreciated.
Regards
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Highlander
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13 Scorpios, XR4x4, Suzuki SJ413 for off road :)
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Re: abs kicking in when stopping
« Reply #1 on: Jun 6th, 2008, 1:35pm » |
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Yep, mine does it the odd time too, not all the time and not for a while, dunno why though
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on Oct 17th, 2011, 12:35pm, Simmo wrote:I give up !  Too much for an old boy!  |
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chris-durham
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Re: abs kicking in when stopping
« Reply #2 on: Jun 6th, 2008, 1:53pm » |
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i read somewhere that they were meant to do it one to check operation, but mines is every single time
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Highlander
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13 Scorpios, XR4x4, Suzuki SJ413 for off road :)
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Re: abs kicking in when stopping
« Reply #3 on: Jun 6th, 2008, 2:36pm » |
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This is what it says on the fault finder:
Brake PEDAL VIBRATES oddly?
Odd sensation on pedal under light braking and starting off?
YES:
No fault - ABS module tests the modulator by firing each solenoid in turn during the moving ABS test. This can cause an odd sensation very occasionally if you are braking lightly at the same time.
might be worth checking the tyre pressures and maybe even the sizes?? different sized tyres would do it.
Have you had a new one recently? used the spare?
try giving the ABS sensors a quick clean.
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on Oct 17th, 2011, 12:35pm, Simmo wrote:| I give up ! Too much for an old boy! |
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scorpio_man
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Ford Kuga awd
Posts: 5654
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Re: abs kicking in when stopping
« Reply #4 on: Jun 6th, 2008, 2:58pm » |
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hi there
iirc, it's one of the sensors acting up a bit. give them and the toothed rings a clean with brake cleaner.
also clean the connectors to them. the rear one is under the rear seat base.
give the wheels a shake to check the wheel bearings.
hth
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chris-durham
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Re: abs kicking in when stopping
« Reply #5 on: Jun 6th, 2008, 3:00pm » |
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Ok, will have to give that a try over the weekend, there is no abs fault light being trown up.
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scorpio_man
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Ford Kuga awd
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Re: abs kicking in when stopping
« Reply #6 on: Jun 6th, 2008, 3:06pm » |
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on Jun 6th, 2008, 3:00pm, chris-durham wrote:| Ok, will have to give that a try over the weekend, there is no abs fault light being trown up. |
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hi there
yes, that's right. it's something like one sensor has told the system that it's locked up just as you're nearly at rest, hence the abs cuts in and pumps the brakes.
hth
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harry.m1byt
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Re: abs kicking in when stopping
« Reply #7 on: Jun 6th, 2008, 9:27pm » |
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My Granada used to do it almost everytime I slowed to a crawl to making the 90 deg into my drive. I put it down to the wide variation in my wheel rotation speeds due to the tight turn.
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August '95 2.9 12v auto Ultima -
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Tompion
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1997 2.3 Ultima estate.
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Re: abs kicking in when stopping
« Reply #8 on: Jun 7th, 2008, 12:02pm » |
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When it happened on mine it was too big an air gap on one of the rear sensors. This had been caused by the sensor ring wearing down the sensor when the wheel bearing failed. Compare the 2 sensors to see if one is shorter, the face should be flat not concave. I filed a bit off the mounting sleeve to get the sensor closer which solved the problem.
Dave
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ABS multiplug wheel sensor pins MK IV or MK 20
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chris-durham
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Re: abs kicking in when stopping
« Reply #9 on: Jun 7th, 2008, 9:19pm » |
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Hi Tompion,
I will have a check of the rears tomorrow, i only got a look (and clean) of the front n/s today.
cheers
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