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Thread: EAS Pressure switch?

  1. #1
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    EAS Pressure switch?

    Hi,
    I am not sure, but I have read somewhere that the pressure switch may be the problem... Allow me elaborate:
    • I have Pauls EAS Unlock and I can "Pump on" no problems.
    • In normal operation, the compressor will come on randomly and pump away for a short time and stop
    • If I select a height, the selector light will flash, but the compressor won't necesarrily come on. It will flash forever without going into fault mode
    • The compressor was working fine, and then one day, not
    • All the fuses are OK and there are no visible leaks
    • The suspension goes down overnight. I have fitted the O ring kit from Paul and the previous owner did the pump seal.
    • Will "test book" be able to pick up this sort of fault
    So what do you think? would this be the pressure switch? If so, where can I get one? If I can't get the answer here, I may have to take it to the local Land Rover workshop...

    Thanks in advance for your help...

    Pete

  2. #2
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    Is your suspension going down on all 4 corners or just 1 corner or 1 end of the RR?
    Is there any difference with operation of the system if you use the on dash override button?
    Have you tried pulling the EAS relay out over night? what happens?

  3. #3
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    hi
    i'm a mobile auto electrician and specialise in p38 range rovers. if you can get over to, or are close to the Bexley area i will happily do a free diagnostic and leak check on the system for you. call me on 0421 509083.
    regards
    Rupert

  4. #4
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    That's a generous offer Rupert - good on you.

  5. #5
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    Quote Originally Posted by RR P38 View Post
    Is your suspension going down on all 4 corners or just 1 corner or 1 end of the RR?
    Is there any difference with operation of the system if you use the on dash override button?
    Have you tried pulling the EAS relay out over night? what happens?
    Going down on all four corners, and the over ride button just looks nice on the dash but I fear it does didley squat...
    As far as the relay goes (relay 20 I pressume) no I haven't tried pulling it out. Are standard MY00 relays made by Narva? if not, I suspect this was replaced by the previous owner...

  6. #6
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    Quote Originally Posted by Rupert Prior View Post
    hi
    i'm a mobile auto electrician and specialise in p38 range rovers. if you can get over to, or are close to the Bexley area i will happily do a free diagnostic and leak check on the system for you. call me on 0421 509083.
    regards
    Rupert
    Thanks Rupert! I will try to call you in the next few days...

  7. #7
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    Quote Originally Posted by Marshall View Post
    Going down on all four corners, and the over ride button just looks nice on the dash but I fear it does didley squat...
    As far as the relay goes (relay 20 I pressume) no I haven't tried pulling it out. Are standard MY00 relays made by Narva? if not, I suspect this was replaced by the previous owner...
    A good starting point is probably getting rid of the Narva relay and see what happens.
    If all 4 corners are on the bump stops in the mornings its either a manifold leak or the EAS ECU is not shutting down (relay??)
    Sounds like Rupert will be sorting it for you.

  8. #8
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    onya Rupert, you're a good bloke.

    Marshall, rather than playing with the EAS relay in the fuse box, try pulling the EAS Delay Timer under the passenger seat or leaving a door open overnight. If it still drops, you have a mechanical issue (i.e. air fitting, valve block, NRV, diaphragm, air spring etc) rather than an electircal/logic problem.

    Cheers, Paul.
    My toys, projects and write-ups at PaulP38a.com

  9. #9
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    I disconnected the battery last night... the car only lowered 1cm...

  10. #10
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    well, thanks for the replies, and thanks again for your advice Rupert.

    I fixed (most) of the leaks, just one left! The compressor seemed to work again, all be it intermittently, and better if there was already air in the system. I ended up getting my local LR workshop to have a quick squiz during it's service today, and they told me the compressor is pumping away merrily... with no output

    Where is the best place to get a replacement EAS compressor? I don't really feel like paying the quoted $660...

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