Post by: loosenup on April 14, 2009, 07:06:14 PM
I have a slight prob with me ABS. It seems to work fine .. but too much .
Under normal breaking the ABS kicks in , but with a Booiiinngg noise from under the bonnet and a juddering from the brake pedal accompanied by a chattering noise. ( best description I could come up with)
I have recently changed the axle .. This noise did not occur before that .
I am thinking maybe the sensors on the back wheels?
I did have to disconnect the vacuum pipe from the rear , and replaced it at the same time.
Not familiar with ABS at all so any help would be great.
The brakes stop the car no probs
By the way it is a 2000 orvis xj 4.0l
Phill
Post by: tim_aka_tim on April 14, 2009, 07:30:42 PM
Post by: loosenup on April 14, 2009, 08:19:20 PM
Post by: tim_aka_tim on April 14, 2009, 08:47:08 PM
Post by: loosenup on April 14, 2009, 09:13:40 PM
Post by: captain cavalier on April 23, 2009, 04:19:07 PM
a standard 99 4litre wont have
Post by: loosenup on April 23, 2009, 06:14:03 PM
What's an lsd?
Been driving it with the condition now but it does not do it all the time , so I am tending to think there is a dodgy sensor involved.. gonna try swapping back to old ones as they look identical and see what appens.
Phill
Post by: Dave69 on April 23, 2009, 07:13:24 PM
Limited Slip Differential. one rear wheel will spin slightly then the rear differential will lock the two rear wheels so they will then turn at the same rate improving traction. when your driving along after the rear differential will then operate as normal.
the LSD should not have any effect on the way the ABS works
Post by: loosenup on April 23, 2009, 11:32:40 PM
I do know what it is .. but for the life of me could not get the LSD bit
Thanks tho Dave for the explanation
Phill
Post by: captain cavalier on April 24, 2009, 08:43:13 AM
Post by: Dave69 on April 24, 2009, 02:34:59 PM
Quote from: "captain cavalier"
I just wondered if they were different size tone rings on a lsd diff thats alltone rings are normally at the wheel end of the axle and no where near the diff, correct me if wrong
Post by: Mike Pavelin on April 24, 2009, 02:39:20 PM
Post by: Dave69 on April 24, 2009, 06:00:41 PM
Post by: loosenup on April 24, 2009, 09:09:20 PM
there are 2 sensors on my axle .. one for each wheel. There is no sensor at the diff position .
It is a Dana 35c.. which is stamped on the axle ( both old and replacement )
It is weird what happening , cos it is not all the time which is pushing me to think one of the sensors is buggered.
The other question is .. does the abs make a boing noise when activated , never had it go on before , but mine does.
The brakes actuallly work great .
Phill
Post by: garyf on April 24, 2009, 09:21:52 PM
Post by: loosenup on April 24, 2009, 10:41:35 PM
which I assume is what is supposed to happen when abs activated?
Post by: MOCAJ on April 25, 2009, 06:11:22 AM
i had the same when i replaced a driveshaft on a Clio, they had changed the design in that particular year and the number of teeth was decreased by 2
just mark a tooth with tipex and then count round the ring
Post by: garyf on April 25, 2009, 08:01:06 PM
Post by: Dave69 on April 25, 2009, 11:17:14 PM
Quote from: "garyf"
make sure the sensor is close enough to the ring and sat square on
if a sensor is not working wouldn't the abs warning light be illuminated. but since these sensore are magnetic they do pick up small pieces of metal which could affect the tone pulse. the blot holding these on could be rusted in place so give it a soaking of penitrating oil first before removal
Post by: loosenup on April 26, 2009, 09:31:43 AM
Would rust on the tonewheel affect the sensor?
not counted the rings yet.
phill
Post by: Dave69 on April 26, 2009, 09:41:06 AM
Post by: dxmedia on April 27, 2009, 11:27:21 AM
just my £0.02
Post by: loosenup on April 27, 2009, 05:31:36 PM
I think I will replace the sensors with the original ones from the old axle and see if that cures it . Will have a crack at the weekend.
Hi dx
bled system thoroughly when changing axle .. actually renewed all the fluid sd s mstter of course, nice clean fluid at all four wheels.
I did this cos the lubrication of the xj was non existent when I aquired the car. The only thing left to top up now is the transfer box, and 2 more oil changes to get the engine sweet.
Thanks for all the replies so far .. been a great help
phill
Post by: MOCAJ on April 27, 2009, 05:56:19 PM
Post by: loosenup on April 27, 2009, 10:44:50 PM
Pulled the fuse at mo just to make driving a bit better :-D
Phill
Post by: dxmedia on April 27, 2009, 11:26:03 PM
Post by: loosenup on April 28, 2009, 08:45:29 PM
I assume you meant Fuse, If you did , then no I didn't cos there was not a prob before I changed the axle.
If you meant fuel then
phill
Post by: dxmedia on April 28, 2009, 10:55:05 PM