22lr90 Posted April 26, 2009 Share Posted April 26, 2009 can anyone help me sort my braking problem i have to pump the pedal twice before i get a good firm pedal then it slowly creeps back to half way with not much braking power but it pulls up fine with a couple of pumps the truck is a 89 90 2.5td with a 200tdi implant . no visible leaks on either axle nor loss of fluid from resovoir vac pumps got plenty of suck to it any ideas???????? Quote Link to comment Share on other sites More sharing options...
Ian M Posted April 26, 2009 Share Posted April 26, 2009 rear drum brakes out of adjustment? Quote Link to comment Share on other sites More sharing options...
Mo Murphy Posted April 26, 2009 Share Posted April 26, 2009 two pumps then she wants to stop My Mrs. is a bit like that too Have you checked the front wheel bearings (assuming you have a drum on the back) for play, if these are loose the wheel wobble can push the pads back so that when you brake they have to be pushed back to the disc, needing a couple of pumps of the pedal before the brakes are effective. HTH Mo Quote Link to comment Share on other sites More sharing options...
defender dave Posted April 26, 2009 Share Posted April 26, 2009 can anyone help me sort my braking problem i have to pump the pedal twice before i get a good firm pedal then it slowly creeps back to half way with not much braking power but it pulls up fine with a couple of pumps the truck is a 89 90 2.5td with a 200tdi implant . no visible leaks on either axle nor loss of fluid from resovoir vac pumps got plenty of suck to it any ideas???????? common problem is the wheel bearings witch push the pads back so you have to push the peddle twice to take up the difference Quote Link to comment Share on other sites More sharing options...
22lr90 Posted April 26, 2009 Author Share Posted April 26, 2009 My Mrs. is a bit like that too Have you checked the front wheel bearings (assuming you have a drum on the back) for play, if these are loose the wheel wobble can push the pads back so that when you brake they have to be pushed back to the disc, needing a couple of pumps of the pedal before the brakes are effective. HTH Mo lol the wheel bearings seem fine i fitted new suspension over the weekend and i checked over the pads and shoes while i had the wheels off and all had plenty of meat left with no visible play with the wheels on its the pedal creeping away that has me puzzled Quote Link to comment Share on other sites More sharing options...
dave88sw Posted April 26, 2009 Share Posted April 26, 2009 failing seals in the master cylinder? Dave Quote Link to comment Share on other sites More sharing options...
Mo Murphy Posted April 26, 2009 Share Posted April 26, 2009 22lr90, Then my next step would be to change the master cylinder as it sounds like fluid is getting by the internal seals. Mo Quote Link to comment Share on other sites More sharing options...
22lr90 Posted April 26, 2009 Author Share Posted April 26, 2009 22lr90,Then my next step would be to change the master cylinder as it sounds like fluid is getting by the internal seals. Mo is that the thingy what the resovoir sits on top of ?? is this why the pedal creeps but no fluid loss?? Quote Link to comment Share on other sites More sharing options...
Mo Murphy Posted April 26, 2009 Share Posted April 26, 2009 Yes and IMO yes Mo Quote Link to comment Share on other sites More sharing options...
yellow90 Posted April 26, 2009 Share Posted April 26, 2009 if your rear shoes aren't adjusted properly you will have to pump the pedal to push the shoes out. i'd start here. Quote Link to comment Share on other sites More sharing options...
Cat_J Posted April 27, 2009 Share Posted April 27, 2009 When mine was like that, it was the rear drums. I went about tightening the front bearing first but it made no difference. After I adjusted the drums the breaks were amazing. Quote Link to comment Share on other sites More sharing options...
GBMUD Posted April 27, 2009 Share Posted April 27, 2009 is that the thingy what the resovoir sits on top of ?? With the greatest of respect, and not wishing to upset anyone; if you needed to ask that question then you should get someone who knows what he is doing to help you do this job - or even to do it for you. It is safety critical and getting it wrong can get you onto BIG trouble in any number of ways. Chris Quote Link to comment Share on other sites More sharing options...
Milemarker Type S Posted April 27, 2009 Share Posted April 27, 2009 With the greatest of respect, and not wishing to upset anyone; if you needed to ask that question then you should get someone who knows what he is doing to help you do this job - or even to do it for you. It is safety critical and getting it wrong can get you onto BIG trouble in any number of ways. I have to second that- getting advice off the internet is all well and good but having an idea of the very basics is a pre- requisite. Quote Link to comment Share on other sites More sharing options...
freeagent Posted April 27, 2009 Share Posted April 27, 2009 ^^^ what he said, please don't play with it unless you at least understand what bit does what... Quote Link to comment Share on other sites More sharing options...
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