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harbydog

Member Since: 25 Feb 2018
Location: Norfolk
Posts: 6

Is this normal on a TD5 90 please ? (TC/ABS related)

Hi, my previous wafflings were over-complicated !

Is it normal for the abs pump to prime now and again, mainly when accelerating ? It doesn't activate abs or tc, you can just hear it doing something.

Thank you

28th Feb 2018 10:58am

bankz5152

Member Since: 02 Feb 2017
Location: South London/North Kent
Posts: 2168

Shouldnt do. Should just activate when the ABS is being used

28th Feb 2018 12:13pm

GREENI

Member Since: 22 Aug 2010
Location: staffs
Posts: 10382

I understand it that it will do, if it's icy/snowy then it will as you have traction control.

28th Feb 2018 2:22pm

harbydog

Member Since: 25 Feb 2018
Location: Norfolk
Posts: 6

We thought it was a fault until we changed the abs pump and now it does the same thing but quietly in the background. Just wondering if we do have a fault or if it’s doing what wit should do. Thanks for your replies people.

28th Feb 2018 7:56pm

bankz5152

Member Since: 02 Feb 2017
Location: South London/North Kent
Posts: 2168

In normal conditions - so dry roads etc.. they shouldnt make any noise or anything, they should act like "normal" brakes.

In snow/wet/icy/sandy conditions then the abs pump will trigger when the abs kicks in. However the abs pump shouldnt kick in if the TC kicks in. If you follow?

28th Feb 2018 10:11pm

grafty99

Member Since: 15 Aug 2012
Location: North Devon
Posts: 4785

Pretty sure the TC uses the brakes to control wheel spin - so the pump will activate

2002 90 Td5 Station Wagon
1990 Vogue SE
Triumph Tiger Explorer 1200
Td5 90 Thread http://www.defender2.net/forum/topic50767.html
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28th Feb 2018 10:23pm

rallysteve

Member Since: 10 Feb 2014
Location: Cumbria
Posts: 2227

2002 Defender 110 Td5 DCPU Keswick Green

Indeed pump is required for the traction control. 02' 110 TD5 Double Cab Rebuild Thread

28th Feb 2018 10:26pm

bankz5152

Member Since: 02 Feb 2017
Location: South London/North Kent
Posts: 2168

Indeed but no pedal feedback or major noise from the pump, but when the ABS is active, you get pedal feedback and more noise. As the TC uses much less"braking pressure" than the ABS

Ive been at the pub quiz so this could be nonzense

28th Feb 2018 10:43pm

grafty99

Member Since: 15 Aug 2012
Location: North Devon
Posts: 4785

28th Feb 2018 10:55pm

harbydog

Member Since: 25 Feb 2018
Location: Norfolk
Posts: 6

The abs and tc works. So feedback on the pedal when you lock the brakes when braking, and tc operation when you hit the gas in the ice. What I’m talking about is normal driving on a dry road, straight line (but does it more if cornering) when you can hear the pump doing something, but no affect on vehicle. As we previously had a noisy pump it was noticeable and annoying. Now we have a new (to us) quieter pump, it still does it but quietly and less annoying apart from not knowing if it should be happening. Thanks again for replies.

1st Mar 2018 9:20am

Balvaig

Member Since: 19 Feb 2016
Location: Fife
Posts: 730

2016 Defender 90 Puma 2.2 Landmark LE Corris Grey

Don't have experience of a TD5, but my 2.2 Puma does it occasionally . It seems to be an over sensitive sensor which will cause the ABS to prime ( slight chatter from pump). Occurs usually on a slightly bumpy road or bend. No TC light, and no fault codes. Did it more when it was new, less frequent now.

1st Mar 2018 10:32am

JWL

Member Since: 26 Oct 2011
Location: Hereford
Posts: 3443

My Td5 will chatter away every so often when driving, it will often do its grumble when I'm turning at a junction in our village as there's a large inspection chamber in the road with a metal lid and it attracts the attention of the sensors when turning tight over it. I find it reassuring in that it still works and isn't broken

1st Mar 2018 12:05pm

Mike c

Member Since: 11 Aug 2017
Location: Maldon, Essex
Posts: 928

As above on mine, tight turns on a slightly slippery/loose or uneven surface triggers it momentarily

Had the light flickering yesterday under acceleration on a slushy/icy/snowy lane as you would expect, good to know it's there!

1st Mar 2018 12:30pm

harbydog

Member Since: 25 Feb 2018
Location: Norfolk
Posts: 6

Thanks again for the replies. What got us started on this wS that the pump was really noisy, and we were a bit transfixed on stopping the noise, overlooking it might have just been a noisy pump. I have a D2 and most stuff is quieter, eg windscreen wipers. Cheers for your help.

1st Mar 2018 1:47pm

Martyn668

Member Since: 17 Mar 2013
Location: Cambridgeshire
Posts: 135

Here’s another “Is this normal ABS/TC” question. Passed my MOT. Phew. Then about a week later ABS/TC lights come on and stay on. (Thank you Land River, for not doing that before the MOT!) But in the snow and ice the ABS still works. Not sure about the TC. Can’t really “feel” that. I had always assumed that if the warning lights came on the system would shut down completely. Obviously not, which is a good thing. Still, I’ve got 11 months to sort it out. Only joking, will get it sorted sooner than that. Don’t have Nanocpm, but I guess a faulty sensor, it usually is, particularly if the pump still activates the system.

3rd Mar 2018 11:31am

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