hughandjen · Nov 28, 2020

1999 P38 4.6 Vogue SE
Hi guys I have been searching the site to solve my problem, but after quite a while I cant find the specific fault I am having
Everything appeared to be working fine with the EAS system but then every so often I would start the car and it would take an age to get up to the correct ride height. Sometimes all is ok and it is ready to drive straight away. Other times it can take minutes. I had a look under my bonnet today and the EAS compressor kept kicking in every 5 seconds. It will runs for 20 seconds, stops for 5 and run again. I have no warnings on the dash.
I am assuming I have a leak somewhere but am just asking for some pointers where to look first.
Thanks
Hugh

RangeRoller dt · Nov 28, 2020

The others will be along to help. We’d rather you ask than suffer in silence or get in a coil

All doable. The more investigation you are able to do the better

The method is here -
https://www.landyzone.co.uk/land-rover/checking-eas-compressor-and-diaphragm-valve.172555/
If you can work your way through this at your own pace you should fix it before you get to the end. If you get stuck just ask

hughandjen · Nov 28, 2020

RangeRoller dt said:
The others will be along to help. We’d rather you ask than suffer in silence or get in a coil
All doable. The more investigation you are able to do the better

The method is here -
https://www.landyzone.co.uk/land-rover/checking-eas-compressor-and-diaphragm-valve.172555/
If you can work your way through this at your own pace you should fix it before you get to the end. If you get stuck just ask

That’s great thanks. I’ll start to work my way through it tomorrow

Rubberknees · Nov 28, 2020

As above follow wammers guide. Helped me out no end couple of years back. I've even printed a copy off to keep in glove box

Henry_b · Nov 28, 2020

If it taking a while to raise and the compressor is running often, more than likely the diaphragm is at fault, no air in the storage side of the system = no worky.
Time to go through your Valveblock with a X8R kit I reckon, a compressor rebuild wouldn't go a miss either.

It takes 100spi to raise one of these beasts

Mark Piercy · Nov 29, 2020

Does it dance at the front or rear by any chance?
Mine would run the pump then lift a little, cut the pump off and lower again. The it would continue doing this all the time it was running.

DarthDude · Nov 29, 2020

hughandjen said:
1999 P38 4.6 Vogue SE
Hi guys I have been searching the site to solve my problem, but after quite a while I cant find the specific fault I am having
Everything appeared to be working fine with the EAS system but then every so often I would start the car and it would take an age to get up to the correct ride height. Sometimes all is ok and it is ready to drive straight away. Other times it can take minutes. I had a look under my bonnet today and the EAS compressor kept kicking in every 5 seconds. It will runs for 20 seconds, stops for 5 and run again. I have no warnings on the dash.
I am assuming I have a leak somewhere but am just asking for some pointers where to look first.
Thanks
Hugh

Very likely a leak. How old are the airsprings and when was the last time the valve block was rebuilt? How far does the car drop if parked overnight with the engine off?

tomcat59alan · Nov 29, 2020

DarthDude said:
Very likely a leak. How old are the airsprings and when was the last time the valve block was rebuilt? How far does the car drop if parked overnight with the engine off?

Pull the eas relay,under the passenger seat this will stop it self levelling whilst parked.

hughandjen · Nov 29, 2020

Henry_b said:
If it taking a while to raise and the compressor is running often, more than likely the diaphragm is at fault, no air in the storage side of the system = no worky.
Time to go through your Valveblock with a X8R kit I reckon, a compressor rebuild wouldn't go a miss either.

It takes 100spi to raise one of these beasts

Ive ordered a kit so fingers crossed

hughandjen · Nov 29, 2020

Mark Piercy said:
Does it dance at the front or rear by any chance?
Mine would run the pump then lift a little, cut the pump off and lower again. The it would continue doing this all the time it was running.

No it doesn’t dance. Once it’s at height it seems to stay there ok

hughandjen · Nov 29, 2020

DarthDude said:
Very likely a leak. How old are the airsprings and when was the last time the valve block was rebuilt? How far does the car drop if parked overnight with the engine off?

I’ve only had the car a couple of months, but the bags look relatively new. Sometimes she drops quite a bit overnight. Sometimes it stays at the height I set it the night before. Very strange.
This morning it took an age to raise up.

RangeRoller dt · Nov 29, 2020

As Alan said ^^^ without the delay relay in the electrics won’t interfere. Pump it right up and pull the relay, will only drop overnight if there is a physical leak. Then you will know if and where.

hughandjen · Nov 29, 2020

RangeRoller dt said:
As Alan said ^^^ without the delay relay in the electrics won’t interfere. Pump it right up and pull the relay, will only drop overnight if there is a physical leak. Then you will know if and where.

That sounds like a plan

DarthDude · Nov 30, 2020

Yes- if it drops with the delay relay thingy removed (or better yet with the battery disconnected), then you'll know it's a leak and not an electrical gremlin at play, and to use wammers' EAS troubleshooting guide to find it and nail it down.

Grrrrrr · Nov 30, 2020

hughandjen said:
I’ve only had the car a couple of months, but the bags look relatively new. Sometimes she drops quite a bit overnight. Sometimes it stays at the height I set it the night before. Very strange.
This morning it took an age to raise up.

That's normal. I have been told the EAS had a few upgrades over the years to limit the amount it can drop in a night but never found the details myself.

Assuming it doesn't drop with the delay timer removed, calibrating the EAS so the values across each axle are the same can help. Sometimes the connector behind passenger a-post can act up and the one to the driver pack. Failing that, the height sensor tends to wear around its most usual height. If one starts to give odd readings at night it can lower a bit each time. Leaving it at wade height might help there or new sensor.

hughandjen · Nov 30, 2020

Pumped it up to full height this afternoon. Will see what it’s like in the morning. Thanks guys

RangeRoller dt · Nov 30, 2020

Don’t worry either way it’s no biggy

hughandjen · Dec 1, 2020

Well stayed fully up overnight so I’m guessing it’s electrical

DarthDude · Dec 1, 2020

hughandjen said:
Well stayed fully up overnight so I’m guessing it’s electrical

Oooooooo.... that's nasty.

Hang on.... what are you parking the car on? I hearsay they do tend to self adjust and lower themselves if the ground beneath them isn't level.

tomcat59alan · Dec 1, 2020

DarthDude said:
Oooooooo.... that's nasty.

Hang on.... what are you parking the car on? I hearsay they do tend to self adjust and lower themselves if the ground beneath them isn't level.

He was advised to pull the eas relay to stop self levelling.

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