I'm aware that one of the symptoms of the broken plastic washers in a GEMS ABS modulator is a 'clicky' brake pedal. Now for years my brake pedal squeaked whenever I applied the brakes but a few years ago that stopped and was replaced with a 'clicky' feel. As the braking performance hadn't changed, I put that down to a bit of wear on the pivot between the pedal and the pushrod rather than anything more serious.

Last weekend I drove to Amsterdam and back and experienced strange behaviour. I filled up with LPG in Belgium, then drove to Calais and the first time I applied the brakes the pedal went down much further than normal but coming off the pedal and re-applying the brakes, all was back to normal. Considering I'd just driven 120 miles at a steady 70-75mph without touching the brakes at all, this suggests to me that maybe the O rings inside the modulator are starting to weep slightly. I'm never going to be able to replicate the problem in this country (driving 20 miles without touching the brakes is considered a good run), so could just leave it but I think a modulator replacement is on the cards in the near future.

http://www.rangeroversolutions.com/ try this place, i think they make the piston or whatever the part is in the ABS modulator. they sell it as a kit i think. thats if you want to fix it . that's if they are still in business that is.

I had a look at his site but no mention of the kit he used to do so no idea if he still does them. I've also read through George's write up on rebuilding his. The cost of the kit is more than I would have to pay for a replacement modulator. I did wonder if, as the later Thor modulator already has the stainless washers, I could just get one of those and steal the washers from it? As far as I know the breaking washers is something that only happens in very hot climates, not something we get in the UK, so a used one from a low mileage car should be fine and lets face it, every car in the UK, if not the world, is lower mileage than mine! I've actually got a non-traction control modulator that some idiot had fitted to the 4.0SE I bought last year (well, the part number is only one digit different so it should be OK), so I'll pull that apart for practice....

Actually we have one case recently reported on the other side from up here. Not a very hot climate if you ask me...

th.

I just fitted the whole Thor modulator and ECU to mine when the GEMS one failed. I also attempted dismantling the broken one for a look see and it was not a nice thing, everything was siezed and i would really have struggled to get it apart in a way that it would go back together again...

Gilbertd wrote:

Last weekend I drove to Amsterdam and back and experienced strange behaviour.

Isn't that the point? :)

Hmm, well it was to Lelystad and back actually but as nobody would know where that was, Amsterdam is the nearest place people will have heard of.