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Discussion Starter #1
Morning all,
I have a problem with my ABS distribution block...and its driving me nuts!:lol:

The story so far...So symtons are pulling to the right when braking, ok no problem its probably some air, so I'll just bleed the brakes.
So out came the one-man pressure bleeding kit and I went through the bleeding as normal furthest rear caliper and so on up to the front n/s caliper closest to the pump.

When I opened the front n/s caliper bleeders, there was some fluid in the line that dribbled out and then nothing, yes no fluid was being pushed through, this was the same on both bleeders for that caliper.

So ok I thought, maybe the pipe is blocked, so I took the brake line off the caliper and still no fluid.
I checked the pressure bleeder was still working on another caliper and it was.

So working back through the system I start to check the ABS pump.
With the system still under pressure I opened each line on the pump one at a time, all spewed brake fluid except that front n/s port.

Haha I thought must be the mother of all air locks?
So out came Fiat ECU Scan (and after ordering a lead to connect to the ABS pump) I cycled the pump and every drive/drain/esp valve in turn.

The pump works, and I can hear all the vavles ticking during testing but still no fluid from that port, no fault codes have been logged...but the port remains dry.

I think I've talked my self into changing this ABS pump as it looks like a stuck/seized valve, but I know there are some clever people on here that may see something I've missed.:)

I've added some screen shots and pick of ABS pump and that n/s front port that remains dry what ever I do.:confused:

http://i24.photobucket.com/albums/c24/jbsmith1/LucasABSinfo.jpg

http://i24.photobucket.com/albums/c24/jbsmith1/ABSACTUATORSCREEN.jpg

http://i24.photobucket.com/albums/c24/jbsmith1/ABSfaultreports.jpg

http://i24.photobucket.com/albums/c24/jbsmith1/DSCF3548.jpg

Any Idea's???
 

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Discussion Starter #3
I'm sure its to do with air in the ABS

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Hi Steve, manythanks I've read the article and found that is the same procedure I have followed, but still worth the refresher.:)

I also tried a manual two person bleed today, and strangely the brake peddle pumps fluid from every output channel on the ABS module except that front n/s channel, with the brake line unscrewed from that channel (as pictured) the peddle is solid and no fluid passes and this is the same after cycling all the valves and pump as well.

I will do some ringing around tomorrow and see if I can find an ABS repairer or second hand unit.

The saga continues...:lol::thumbs:
 

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I remember reading on a scooby forum they had to push the pistons into the calipers as far as possible then bleed the brakes as normal with the engine running. That was with brembo brakes.
 

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Discussion Starter #5
I remember reading on a scooby forum they had to push the pistons into the calipers as far as possible then bleed the brakes as normal with the engine running. That was with brembo brakes.
cheers Steve, if I ever have trouble bleeding air from the calipers I may try that, my problem atm is there's no brake fluid exiting the abs pump for the front n/s caliper.
 

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Discussion Starter #6
little update to this.
I sent my abs pump away to BBA-Reman in Kent, they inspected the pump and found it had a hydraulic valve fault, the bad news is its not repairable.

So I'm now on the hunt for an ABS pump from a 2.4 159/Brera, I've tried Cattlow on ebay and Alfaspares and ABScity and AutoLusso, non have a replacment matching my ID codes.

I actualy only need the hydraulic block part, the ecu part on mine is working fine.
http://i24.photobucket.com/albums/c24/jbsmith1/DSCF3550.jpg

http://i24.photobucket.com/albums/c24/jbsmith1/DSCF3552.jpg

In the meantime I've by-passed the ABS unit but left it plugged in.
http://i24.photobucket.com/albums/c24/jbsmith1/DSCF3581.jpg

If anyone spots something, please let me know.:thumbs:
 
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