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servo pump seized?

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Old Sep 9, 2010 | 07:56 PM
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Default servo pump seized?

chucked a new battery on the saff and got it started, been stood in garage for 4year!,
anyway brake pedal is rock hard at all times, abs lamp illuminated, servo pump is hot, red hot i burned my hand on it, thinkin pump is seized? anyone had this before?
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Old Sep 9, 2010 | 08:15 PM
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Does the pump sound like it's working? May be a blockage in the low pressure fluid feed pipe.
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Old Sep 9, 2010 | 08:16 PM
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Sounds more like it's losing pressure, hence the pump running all the time. You could try changing the "bomb" first.
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Old Sep 10, 2010 | 05:27 PM
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As jon@work says is the pump running, making a whirring sound ?, it should stop after 20-30 seconds or so, if it doesn't there is a problem and if it runs continuously it's going to make it kin hot as it's not supposed to, has a very hard job to do.
If not whirring to start with and getting hot it is seized, so just have a listen, they're not quiet so will easily hear it even with bonnet shut.
tabetha
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Old Sep 10, 2010 | 08:51 PM
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will have another listen over weekend, dont think it made any sound at all, i didnt leave it running too long as i thought it could cause a fire!, dont think theres water gettin in anywhere as its been in garage for ages,
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Old Sep 11, 2010 | 02:10 PM
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just been looking on ebay and there looks to be a few variations on the abs/pump unit even though all say 2wd, as where brake pipes go etc?
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Old Sep 11, 2010 | 06:04 PM
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Originally Posted by phil robson
chucked a new battery on the saff and got it started, been stood in garage for 4year!,
anyway brake pedal is rock hard at all times, abs lamp illuminated, servo pump is hot, red hot i burned my hand on it, thinkin pump is seized? anyone had this before?
I've had one fail before. Sympton was no fluid coming from the three outlets where the brake lines connect. May be worth taking these off and pressing the pedal to see if fluid is flowing OK. If not, change the unit.

Charlie
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Old Sep 11, 2010 | 06:52 PM
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I'm sure reman can rewind the pumps/motor so they are as good as new.
tabetha
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