I have fitted the ST170 hubs to my 2 ltr Focus to enable me to run the ST Discs and Calipers, I had new bearings fitted as a matter of course, and to that end had the ABS sensors removed aswell, once fitted to the car, I refitted the sensors and ran the car down the road, for the first maybe 100 yds it was fine, then the ABS light, the traction control light and the brake warning light came on. Friggin nightmare... after swapping back to the original cables from the car, I thought that would cure it but nope, still have the lights, countless calls to a mate who works at a ford garage who asked the lads in the workshop, (recomendations included checking that if wires are chaffed, reseting the ECU by disconecting the battery) still aint solved the problem so as a last ditch attempt I rang a mate who has a diagnostic machine, we took it round the block only to be told that neither of the sensors have an output. In the meantime my mate has made calls and it now appears that as I have upgraded to ST hubs the drive shafts may be wrong and the sensors are not picking up the signal.

I know this is a popular conversion, and i've never heard of anyone having probs with the ABS sensor, am I just really unlucky and all four cables are mullered, or is it the drive shafts? or is it sommat else?

Any ideas

 

Just being stupid, but... did you put new bearings in?

I believe that the ABS pickup is in the wheel bearing and when put in the wrong way can cause the ABS light to illuminate.

By "no output" do you mean that the machine was not registering a value when the wheel was spinning, or that the sensor itself was not working? (if that makes sense)

 

No mate I had them put in at the Ford garage, now the mate who ran the Diagnostic said the same as you, but when I rang my mate at ford he said that the pick up was on the drive shaft NOT the bearing

As for the "no output" I assumed that it was not picking up a signal... which would tie in with my mate suggsting the bearings being in the wrong way round, as he said to me i'd be very unlucky for all 4 cables that i'd used to be mullered, the fact that both where not working would suggest something other than the cable.

 

Easy thing to do is use ST170 sensors as they will be correct distance away from the ring to give correct pulse.
I am not familiar with the focus or St in this way, but it would be easy to see where the ring is for the abs just take out the sensor, I would hazard a GUESS it will be on the driveshaft, abs sensor values will be the same on normal and ST so just new sensors will correct it.
You will know the sensors trigger ring/wheel by a series of uniform serations ie bits missing, lots of flat teeth with small gaps in between.
tabetha

 

Right, quick check for you.

Ask your bloke @ Ford about these 2 finis numbers:

1112547 (wheel bearing - not Focus RS without ABS)
1113967 (wheel bearing - not Focus RS with ABS)

Also, a bearing kit is available which is 1112547, which you DO NOT supply if the vehicle has ABS.

Which part number did you get?

Also, this is a known issue with the Transit Connect as they use the same idea (although different bearings).

The serated (toothed) ring would be the conventional method, but... the bods @ Ford decided to try another way on the Focus and Transit Connect which should have been more reliable, which was inserting the pickup point into the bearing.

 

See told you I was not familiar with them!!
tabetha

 

To be fair, the only reason I knew about it was because I had dealt with this issue before when running the Trade Sales Dept. of my Ford dealer and our own workshop used to have the same problem whenever a new guy started in the workshop.

 

Cheers lads... I'll relay this info to my mate

 

Just a quick thank you... It was indeed the incorrect Bearings.

All sorted now

 

ive been told i need to replace my front wheel bearings on a st170. from research on the internet is seems the finis code for this is 1112547 however as also stated above i have seen that these bearings are for cars without ABS , but my focus has abs so im a little bit confused , could someone please clarify which bearings i need .

thanks in advance.

 

It does not matter if you fit ABS bearings to non ABS cars other than the fact that the bearings are more expensive , but as stated above you must fit the bearing the correct way around as only one side of the bearing has got the said ring installed , the no of times we had garages buy bearings from our parts dept only to bring it back saying it was faulty and they wanted us to replace them under the fitted in service warranty programme for us to tell them that they had fitted them the wrong way around and so it would be chargeable and also fleet companies replacing bearings at non franchised places only to then find the ABS light was on straight after was also a good one .

 

thanks for the reply but my problems the reverse in that i believe my car has ABS however the code points me to a wheel bearing that is specified for cars WITHOUT ABS, so i just wanted clarification on which wheel bearing i need to get for the ST170

cheers again