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Topic: ABS playing up (Read 527 times) |
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Butterfingers
Full Member
2.3, 16V auto R Reg Ultima
Posts: 202
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ABS playing up
« on: Mar 28th, 2006, 11:42am » |
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On two separate ocassions now, I've had the ABS light come on and then on start up behave normally. The first time I was stuck in traffic and it appeared, but after turning the engine off for 15 mins it behaved normally. And again yesterday it came on as I was pulling off and then this morning its behaving like nothings happended.
Anyone else had this? It sound more like a loose connection to the modulator or a dirty sensor perhaps. Also it was not raining.
Thanks.
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Butterfingers
Full Member
2.3, 16V auto R Reg Ultima
Posts: 202
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Re: ABS playing up
« Reply #2 on: Mar 28th, 2006, 12:09pm » |
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Thanks, I've already read that, it doesn't cover what I've described.
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Highlander
Moderator
Expert
13 Scorpios, XR4x4, Suzuki SJ413 for off road :)
Posts: 8244
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Re: ABS playing up
« Reply #3 on: Mar 28th, 2006, 12:31pm » |
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discs, pads, wheel bearings, tyre pressures all ok?
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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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Butterfingers
Full Member
2.3, 16V auto R Reg Ultima
Posts: 202
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Re: ABS playing up
« Reply #4 on: Mar 28th, 2006, 1:00pm » |
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on Mar 28th, 2006, 12:31pm, Highlander wrote:| discs, pads, wheel bearings, tyre pressures all ok? |
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Discs and pads renewed in January, tyre pressures around 35 pSi, and no squeaks from the bearings. But no sign of it playing up today
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sector-9
Senior Member
No scorpio anymore
Posts: 1069
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Re: ABS playing up
« Reply #5 on: Mar 28th, 2006, 8:06pm » |
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Favourite is a wheel sensor or wiring - mine just started to play up again on the Rover 820 (hasn't happened since last summer) - it seemed to be worse with heat and damp to the point that driving through a small puddle on a moderately warm day was enough to cause it to happen. Seems to have cursed every 800 I've known...
I'm not sure about the Ford ABS system but the Bosch ABS used on the Rovers was very easy to diagnose; you just shorted two wires out on a multiplug and counted the number of flashes from the ABS warning light. Don't know if you can do the same with the Ford system but you can manually check each sensor using a digital multimeter set to AC millivolt range. Disconnect each wheel sensor and attach the meter probes to the sensor wiring. With the wheel stopped you should get no voltage reading. Spin the wheel and you should get a definite (though low) voltage reading if the sensor is working.
Darren
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Jonnycab
Senior Member
Former owner of 2.3 Ultima Facelift saloon
Posts: 3900
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Re: ABS playing up
« Reply #6 on: Mar 29th, 2006, 12:24am » |
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I had this problem on my previous '95 Scorpio. In wet weather the ABS light would come on & when trying the brakes I had no ABS (wheels locking). It turned out to be a loose connection on the n/s/f/wheel !!
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