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troverman
Member Since: 09 Sep 2008
Location: New Hampshire
Posts: 51
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Does the compressor motor ever seize up? |
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New post, trying to get some answers. Summary: Took the LR3 to the dealer for new dryer install, which they did yesterday. Dropping it off, the car was level at normal height, amber fault light on, leaking air at blue dryer fitting when the compressor was on.
By the time the car made it home, the back end is up, front end is down, amber fault light on, suspension riding hard, and the compressor will not run.
So, in manually checking it by doing the "Wiggs" relay override to turn the compressor on, all I get is a big spark and nothing. And you can see when the car tries to turn the pump on automatically, the engine kind of bogs down and the lights dim for a second, like the engine is under a big electrical load but the compressor won't start.
So now apparently the motor must be seized, stuck, or burnt out; or maybe the compressor piston has seized or is stuck.
I want to take it all apart myself, nothing to lose now. Can the motor or actual compressor piston housing be purchased separately? Has anyone's motor or piston seized up? Current Rovers:
2005 LR3 V8 SE
1992 Range Rover County
1997 Range Rover 4.0SE
Previous Rovers:
2000 Discovery II SD
1995 Range Rover 4.0SE
1992 Range Rover County
Also Current:
2012 Volkswagen GTI 2.0 TSI
1995 Mercedes-Benz E320
1999 Audi A8 4.2 quattro
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9th Jul 2009 12:59 pm |
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caverD3
Member Since: 03 Jul 2006
Location: Oberon, NSW
Posts: 6922
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I think it is a new compressor.
You could try to get someone to fix and re-condition but it could be the compressor or the motor.
I have four failed compressors in my office and none have seized, so I think complete failure is rare. “There are only three sports: bullfighting, motor racing, and mountaineering; all the rest are merely gamesâ€
Ernest Hemmingway
D4 3.0 Active Diff, Adaptive Lights, High Beam Assist, Surround Cameras, Privacy Glass.
D3 2.7:Adaptive Headlights,Electronic Rear Diff,ARB Bar,Blaupunkt Speakers,JVC Powered Subwoofer,Removable Snorkel,Mitch Hitch,Pioneer After Market Head Unit,Steering Wheel Control Adaptor,Remote Adjustable Supension Rod System, Taxside Dual Battery System.
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9th Jul 2009 1:49 pm |
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troverman
Member Since: 09 Sep 2008
Location: New Hampshire
Posts: 51
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I'm hoping the electric motor seized. There is a shop that specializes in rebuilding electric motors, alternators, etc. Fixing the compressor piston will be more difficult. Current Rovers:
2005 LR3 V8 SE
1992 Range Rover County
1997 Range Rover 4.0SE
Previous Rovers:
2000 Discovery II SD
1995 Range Rover 4.0SE
1992 Range Rover County
Also Current:
2012 Volkswagen GTI 2.0 TSI
1995 Mercedes-Benz E320
1999 Audi A8 4.2 quattro
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9th Jul 2009 2:20 pm |
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wiggs
Member Since: 03 Sep 2006
Location: Manchester
Posts: 14368
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Whip the compressor cover off ..unplug the 2 pin plug (redish orange & black leads ) ..connect up a hefty 12v supply direct to the lead from the compressor ( jump leads off the car ideal ) ..see if the compressor runs . That way you are bypasing any of the car connectors / electrical bits . You will then have a deffinate answer if the compressor is working or not . G4 Gone ...but not forgotten
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9th Jul 2009 4:36 pm |
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troverman
Member Since: 09 Sep 2008
Location: New Hampshire
Posts: 51
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Big spark, won't run. A friend here says compressors have a valve that releases pressure in the piston head just after running or just before starting, so that they'll be able to start up again. (Almost like how a hydro-locked cylinder won't move). How can I release (any) pressure from the compressor cylinder head?
Thanks Current Rovers:
2005 LR3 V8 SE
1992 Range Rover County
1997 Range Rover 4.0SE
Previous Rovers:
2000 Discovery II SD
1995 Range Rover 4.0SE
1992 Range Rover County
Also Current:
2012 Volkswagen GTI 2.0 TSI
1995 Mercedes-Benz E320
1999 Audi A8 4.2 quattro
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9th Jul 2009 4:48 pm |
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