Dave_SFX

Just to put this topic to bed, new vacuum pump has solved the problem Checked the servo and master cylinder for leaks etc with no joy. As I have mentioned previously, one way valve was good and vacuum was present (although it transpired that the vacuum was weak). Without the presence of a vacuum gauge, I built a little rig to connect our household's trusty Dyson to the servo to create a guaranteed vacuum and this proved that the rest of the system was OK. A short time later, new pump fitted and tested with smiles all round! Thanks for all of your suggestions D

It's come back! Nooooooo. Someone else seems to have a similar problem in a later post and the finger is being pointed at a dodgy servo. I'm going to check for cracks/leaks as best I can and try to get a replacement. I will solve this! With your help haha D

Haha Big Mike, me too! I get about 25mpg out of my old 300tdi with A/Ts and a roof rack in and out of Birmingham on the motorway at about 60 - 65mph. 70 it can do, but only if I have to

I've had a very similar problem with my brakes - did the servo and master cylinder and they worked great for a couple of months but now brakes are near non-existent. Tried the test above to ascertain servo's servoiness with very poor results. No cracks around master cylinder joint, any other hot spots to have a look at? Is there a way to test the servo on it's own to show it has failed? I'm thinking 2-3 months is certainly within warranty...

I had the same thing after reassembling my dash recently - it was the speedo cable resonating amongst the other cables and only happened at tickover D

Full marks guys! Dodgy one way valve was the culprit - reckon the cold finished it off. Replaced it with the old valve that I'd (luckily) kept to confirm the fault. Also, blue box parts are a definite no no for safety critical bits - these were Bearmach bits :/ Now on to replacing the exhaust... D

Ordered a battery from Tayna today on Pete3000s advice and it was delivered next day by FedEx lovingly packed in egg crates D

Cheers for the suggestions chaps! Hopefully i'll get some time over the weekend to check out the pistons. This seems to have become a problem since this last cold snap so that kind of makes sense. As I said, vacuum pump seems to be working when I check it at tick over but i'll double check that to. I'll let you know the outcome... D

Thanks for the feedback chap

Hi guys! Need some pointers with a brakes problem on my 90 300tdi please Typically, the braking potential of my Land Rover has never been one of it's strong points, however after replacing the servo and master cylinder (including bleeding the system) and checking that the vacuum pump still works satisfactorily, I noticed a massive improvement (up from 27% efficiency to a healthier 70% according to the MoT brake tester). This improvement has lasted for approximately 1 month. However, as with all things Land Rover related, this was not the end of it... My brakes have reverted to their less than great state just a month or so after. The pedal is very firm (firmer than when everything is working well) although still travels and produces a minimal amount of breaking when pressed hard. This is most frustrating! Occasionally, I get the desired effect but, as you can imagine, this comes as quite a shock. Any ideas on how to proceed? Thanks in advance D