I have just been told my front ABS sensor rings are cracked and breaking up, making the abs cut in at low speeds. Incredibly, the rings, which must be a cheap part, cant be procured by themselves, and I have to spend £700 plus on two whole driveshafts etc.
Has anyone else had this problem, there must be a way around what appears to be a complete nonsense.
Hyundai UK have told me I cant sinply buy the sensor rings!
Does anyone know of a generic part, or a pattern part where I could source replacements.
Or does anyone know an alternative, e.g. can I just disconnect the front ABS?
what would that do, (apart from not having abs on the front?)

welcome to the forums :00000732:

the abs status rings that are fitted on the c.v. joints at the end of the drive shafts can not be re-newed independantly, this applies to all makes of cars. o/k so the status rings are obviously made at a factory in the first place and then assembled somewhere else but unless you know someone in a factory who can slip you some out the back door you have got no chance, and even then you would need an engineering shop to replace the rings. on some cars you can just change the c.v. joints at the end of the drive shafts which obviously works out cheaper but on other cars including hyundai you have to buy the compleate shafts.

as to your other point you can not dis-connect just the front abs system. you could pull the fuse out and dis-able the whole abs system but the warning light would be on constantly on the dash. panel and it would not pass an mot test in that state

Hmmm, Montego,
I appreciate your comments.
I think I am going to take one of the wheels etc. off and have a good look. The sensor ring is just a sintered metal ring thats been castellated. On the web you can find the factories that supply ABS sensor rings with dozens of pictures of sensor rings. They are sintered metal, obviously to the right spec. but dont look like much of an engineering challenge.

I dont know how its fitted, i.e. a pressure fit, or there's a keyway etc. I'll try and check that out. Its clearly not forged togther with the rest of the driveshaft, its the wrong metal, so it must be a retro fit into the drive as a final assembly stage.

If I can get one off, I dont see why I cant go to the local engineering place and get a couple made. The metal wont cost much, and based on the rings on the web sites, it looks like its just a lathe and a milling machine job. Even if someone spend hours on it, its still going to be far cheaper than changing the whole drive shaft unnecessarily...

I'll let you know how it looks if it stays dry over the weekend and I can get the jack out etc..

(I think I'd rather take the fuse out and stick some tape over the warning light on the dashboard than have dodgy abs, which makes the brakes judder at low speed... would buy me some time to work out how not to get ripped off!)

I will use the web to see if I can find a source.......will feed back info.........

Ji Mickishere

The following is from a thread I initiated earler . hope it is useful .




the ABS in my trajet gets active unnecessary at low speeds(<30Km/h) .

this has happened 4 times in the last month . the Jet stops , but you feel

the brake paddle travels deeper , this is kind of scary , because it

happens unexpectedly . I checked the speed sensor at all wheels and

found that signals are getting through to the ABS controller (H ECU)

connector . Has any of you experienced such thing , what might be

the cause and what is the remedy . thanks

Regards
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trajetXG
post Jul 30 2006, 09:17 AM
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Worn brake pads or worn disc rotor? smile.gif


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Have A Nice Day...click here to see my Jet.
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post Jul 30 2006, 09:47 AM
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mazen,
when the trajet first came out in 2000, they had some problems with the ABS activating during low speeds. the symptoms are as you described.

Since the year 2002, this problem was supposedly fixed.

Looks like it has "returned".

All I can suggest is go to your loca hyundai service center.
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post Jul 30 2006, 03:06 PM
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Hi!!

Know this prob from my old Jet. ABS-Ring located on driveshaft broken. Was a expensive defect cause the driveshaft at to be replaced.

I heard, in Europe the Ring can be replaced alone in the mean time. Will be shrunk and pasted...
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post Jul 31 2006, 07:46 AM
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TrajetXG

thanks for the advice but the brake pads or disc rotor are fine .


jackson91

I believe your analysis for the problem are most likely the case .

because I made all the electrical measurement , and all was within the

specified limits . My Jet. model is 2000 .

From your experience is there a software that needs up dating to

remedy the problem , or it is all embedded within the (H ECU) of

the ABS .

jennes33

The problem started after the Jet suffered a heavy impact due

to being lifted by the jack on a tilted surface and fell . I checked that

teethed ring which provides the speed source but not accurately

I think I need to check it again . but question , is the teethed

ring molded to axle or it just glued or attached . from what

you mentioned it sounds like it is just attached .

I appreciate any comments on this matter .

Regards to you all
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post Oct 15 2006, 02:18 AM
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Hi All


I had the problom fixed . Fine adjustement to the inductive sensor


and good cleaning to the teethed rotor . things are fine now

no problom for the past 6 weeks


Bye
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post Oct 18 2006, 06:18 AM
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Same ABS problem here in UK. Toothed ring that ABS sensor reads is cracked. Common problem apparently. The other side has been welded up in the past which I am not entirely happy about!

Have to replace whole driveshaft at £300 + tax, and about an hours labour. Each side.

Anyone got a source for cheap driveshafts?

Mike

2001 CRTD

Had the same problem got an engineering shop to repair them £20 (removed the cv/driveshaft joint myself) dont buy a new one phone round some places that do engineering

This post has been edited by weeboab: Feb 4 2007, 11:06 AM

Wow, seems that this is a widespread problem.
I had her up on axlestands to take a look, and yes my sensor ring has cracked open, leaving a gap.
Its not a surprise when you look at the design. Its just sitting there, a friction fit on the steel casting at the end of the driveshaft. Anysurface corrosion, (which is inevitable) of the steel casting increases the diameter, putting the sintered metal sensor ring under tension. Sintered metal doesnt cope with tension so it breaks. hey presto, dodgy abs.
There is surely no need to replace the driveshaft!, if you can source the rings thay can actuall be glued into position, they dont actually do anything apart from sit there as the thing spins around.
This seems a rip off, and I am going to have it out with the Hyundai people tomorrow. They had told me they cant supply the rings on their own, but it seems to me that can only be a scam.
We shall see!

Hi Mazen, could you let me have a softcopy of the manual. Seems I am going to have to take the CV's or driveshafts off/out!
Not had to do that before...hopefully no special tools or pullers needed.
Cheers
Mick

Hi Mickishere

I emailed the manual . it is an owners manual , not a service one . A friend from

the uk is selling a service manual on cd for 10 pounds .

Find attached a document for shaft removal . it is a stright forward procedure

you mainly need 32 mm socket , 17mm ring . disregard point 4 .

insert a rod ( screw driver) between the brake cylinder and wheel rotor to

stop it from rotating , because you need to put a lot of force to move the main nut .

and you do not want to damage the park pin in the a/t . good luck




Attached File(s)
 SERVICE_MANUAL_drive_shaft_removal.doc ( 55.5k ) Number of downloads: 162

Hi,

any news on your ABS rings ? :-)

I have found information in a german forum that the rings are sold separately by german hyundai dealers. and i have found the address of a german shop who is specialized in motorcycle parts but also manufactures a set of ABS rings for the trajet (guess the owner has a trajet himself ;-) ).

The address is

http://www.mx-tec-parts.de/englisch
http://www.mx-tec-parts.de/englisch/k010u002s001.htm

mailto: mail@mx-tec-parts.de

Brandy

Hi Ez2517


This is a pritty cool bit of information . 75 Euro is not cheap ,

but someone has done it and it is there .



Regards

Hyundai Uk are now supplying rings seperately on most models(to dealers anyway

Try this for info http://www.hyundaiownersclub.co.uk/forum/v...opic.php?id=299

Yes, having sourced a ring elsewhere I was told by my dealer this week that I can now buy from them. Mine cost me £10 delivered (yes I was rather pleased about that compared to a £300 driveshaft) and I fitted it last night with a friend who is good at that sort of stuff! :clap:

Dealer told me that they pay about £10 per ring. Would be interested to know what they sell them for!

We finished about 23.15 last night and today I replaced my ABS fuse and all is working fine! :banana:

I have had this problem for months and it is good to get it out of the way.

The ring is just an interference fit. We heated it with a hot air gun and it just slid over the cv joint and then cooled to produce the interference fit.

The big problem was removing the hub nut. We broke my crappy torque wrench and ended up with a big (no really big) britool breaker bar and a 3 foot scaffold tube, but it went in the end. It is a 31 mm nut by the way, but our 1 1/4 socket did the job. 32mm felt a bit too loose.

Next problem was the two nuts that clamp the upper mounting to the suspension strut. Not as tight but some serious grunt needed. Note: the top one secures a 'lobed' kind of cam washer that we think sets the camber angle so note its position before you remove it.

No need to split the track rod end ball joint. We spent 40 mins trying and failing with a professional ball joint splitter. You can pull the driveshaft clear of the hub with it still attached.

Cleaned up the outer surface of the cv joint with a dremel abrasive drum and wire wheel.

Reassembly is the reverse of removal. :laughing: Always make me laugh that one!!

Need a serious torque wrench for the hub nut, as torque is about 200 lbft. Mine will visit a garage soon for a bit more as ours stopped at 150 lbft, as we had broken the big one as explained!

By the way, I could not find a service exchange CV joint for my 2000 CRTD, and it looked expensive as well as inconvenient to get mine remanufactured.

Although I did not gvet a full joint in the end http://www.partsinabox.co.uk/ were very helpful and were expecting to have new joints in stock a few weeks ago.

Happy to field any other questions from those about to undertake this job. Good Luck,

Mike

Hi there.Just been reading the posts about the faulty ABS rings and it all started to sound o'so familiar !.My Jet started kicking at low speed a few moths ago, but i put that down to either worn brakes, or slightly worn tyres.However noe i have read this forum i am starting to wonder !.Just a quick question though....surely it is covered by the 5 year warranty ?.My car is a 2003 CRTD, and it had to have 2nd gear syncromesh at 60'000 miles (under warranty), so i would expect a brake fault to be covered for sure.....isn't it ?

Hi All

Hyundai have released the abs rings on their own for the diesel Trajet only, the part nos are:- 49590 - 3A010 (2.0 Diesel Auto) and 49590 - 3A110 (2.0 Diesel Manual)

I have been quoted £11.74 + vat per ring :) which is a whole lot cheaper than £350.00 per drive shaft :w00t:

For some unknown reason they have not done the same for the petrol models but i have heard of some one getting hold of the rings to suit the petrol model from this firm:- http://peterson-engineering.co.uk who are based in Cleveland UK. Whilst here i have also found a good seller on a well known auction site who stocks a wide range of parts for the Trajet and other Hyundai models.
http://stores.ebay.co.uk/iezura_W0QQssPage...sQ3amesstQQtZkm

Hi fanx_ta_ra


Thanks for the good info. Please let us know when the rings for

petrol engine arrive at the dealers .




regards

hello
thanks so much for your help! if it hadnt been for us looking at your post we would not have known what was wrong with our trajet. anyway we have been on the german site but i have a problem i am dissabled and cannot get under my car! the german man needs to know the measurments of the ring i need! the drive shaft bit he knows its the width of the actual ring he needs and i cannot get under the car with my back. i have a gsi 2002 model can you help me at all.
thanks Mark

Hello bros,

Just to share my experience with ABS rings on the trajet,

recently I cv joints were going south, had to change them . so went faithfull to local hyundai agent. They immediately told me need to cahnge both the shafts which will cost aroung $Aus 1700 and another 450 for labour.

I smelt a rat in this and decided to explaore further... I managed to get a local expert in cvjoint, we mange to get a match for the Hyundai Trajet .... the Cv joint came from an earlier model of Mitsubishi Magna 3.2 liter and the ABS rings from the latest model of Mitsubishi magna 3.8 , here in australia.

the Cv joints were interference fit, heat it up with hot air gun and presto we have a apair of work shafts. Old shaft, new cvjoint , new abs ring , new cv boots ....

the damage was only $Aus300 with labour and a 3 year 40,000km warranty ....

So I learnt never to trust any Hyundai agent anymore, do your research and find out in details of the problem .... before you part with $$$$$$.

Cheers

hi kelvinvijayakumar


Thanks for sharing the info . very useful indeed .



Regards

Hi Folks my first post!

The ABS kicking in happened to me a few months ago, initially I thought the noise was coming from the drivers side, the tone ring was in perfect condition, but I found the top suspension bearing was in pieces, so changed that!

The fault wasn't fixed, I found that the passenger side tone wheel was very rusty, completely unlike the drivers side! As I was very busy I burst the old ring off with a chisel and ran like that for a while, but today finally fitted the new ring.

As described, there is no need to split the balljoint, and the only difference I tried was putting the new tone ring onto an electric cooker hob at a low setting for a few minutes.

It went on easily, I had used a file to clean off the rust. I bought a 31mm socket from Ebay, I managed to get the loan of a 3/4" breaker bar which worked great, nice and solid.

Thanks to all who posted help!

Now any info on changing the cambelt on a 2002 CRDT?

I'm having the same problem and order new ABS rings already but in the meanwhile I like to disconnect the ABS.
Anybody can tel me pleae where I can find the ABS fuse?
I look in the fusebox but can't find it. Maybe it is marked with a different name?

Thanks for your help!