Vehicle & Technical > Range Rover
air pump running alot
Range Rover Blues:
System pressure 10 bar
Pressure relief valve on top of valve block
pressure switch on the air tank
thermo switch within the pump itself
pump also has timer switch built inot the ECU
What's this pipe you can wiggle about :-. that doesn't sound right at all. The air inlet/filter is in the RHS rear wing, it's not that you're wiggling is it? the tank is under the passenger's seat on the chassis.
Remember if you are watching it over a period of time that every few hours the car self-levels! if you want to stop it then find the switch under the back of the driver's seat (looks like a window switch) and switch it on , this is the EAS inhibit switch for when you're changing a wheel or servicing the car.
Also when the pump turns off you will hear a PHSST from the back of the valve block, this is normal as the air inlet valve is pressure regulated.
waveydavey:
Very rare thing this but RRB is slightly wrong! Sorry Andy- did you miss that it's a P38?
Mind you all the important stuff is the same, it's just the places.
The P38 has the compressor on the front left inner wing, the air inlet is on the front of the box it's in. This was actually good move as it doesn't pick up the crud.
The P38 doesn't have the EAS inhibit switch other than the one on the dash - to change a wheel etc. you are supposed to leave a door or the tailgate open.
As I said though minor points - the Guru is certainly right on the important stuff!
automania:
the pipe comes out of the rear of the tank, not noticed exactly where it goes as i was struggling with the fuel tank at the time, but there is definate movement of the pipe in its fitting, tho i have to think that id here a leak from there if that was a problem.
not heard an hsh noise when the pump turns off tho havnt been listening for that.
the car held off road height all last night (measuerd the height). so persumably that side of the system must be fine.
the car goes up fairly quick so persumably the pump is ok?
other than the leak i described i cant hear anything else, so only thing i can decide is the air pressure switch is faulty?
just one other thing the pump is going that much that yesterday i felt it and it was almost too hot too touch the pump body, surely that cant be right, but why isnt this thermal cut out cutting out?
once agian thanks for your help guys
Range Rover Blues:
--- Quote from: waveydavey on August 14, 2008, 07:48:13 ---Very rare thing this but RRB is slightly wrong! Sorry Andy- did you miss that it's a P38?
--- End quote ---
Yes I did, well the second time at least :oops:
Sounds like you have no shortage or air in the tank, say you just drove somewhere for 10 minutes then stopped and parked, is it still running all the time then?
waveydavey:
--- Quote from: automania on August 14, 2008, 16:20:51 ---the car goes up fairly quick so presumably the pump is OK?
once again thanks for your help guys
--- End quote ---
It will go up quickly as it goes up using the stored air.
Take it up and down a few times to use up all the air, basically until it doesn't rise straight away; then see how long it takes to get up to extended height.
If its reasonably quick still then I would look at the pressure switch/control side
If it takes ages once you loose the air reserve then look at the compressor.
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