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After further consideration!
My opinion is as follows (!)
Kerry is often right so it is worth while doing what he says first.
However I don't think that the vacuum pump is necessarily an easy job. When sitting in an arm chair reading the book it looks straight forward and indeed I'm sure it can be. But in the real world you might find that the screws on the cover of the vacuum are corroded and nearly impossible to remove without damaging something.
If the pump gets damaged the replacement cost is high. I think a brand new part will cost the best part of 1000USD... so there's half of the OP's purchase price. Second hand parts are cheaper but 'cos everyone knows how much the new ones are... well they're not cheap either...
...so be careful with the vacuum pump...
Ronkat81 - if you have compressed air and a leak down tester to hand then there is nothing wrong in making a measurement. However perhaps the quickest check to do before you even consider vacuum pumps and vacuum testing is to push up and down on the brake pedal with the engine off and listen out for any air chuffing out of the front of the vacuum pump...
EDIT - I forgot the most important point!
WARNING - there are lots and lots of threads on this forum where people have been chasing their tails trying to get this sort of problem fixed.
When I say don't fiddle with anything else - I mean try not to fix everything all at once. Do one thing - do it well. Best of luck to you!
Last edited by Stretch; 10-02-2011 at 06:32 AM.
Reason: Most important point was forgotten!
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