P38A eas - car on springs w reg thor 4.6 vogue

alanlucas · Oct 25, 2020

Guys,

Am thinking of converting mine back to air suspension.
Car was converted to springs before I bought it.
Only the airbags and height sensors are missing and the ecu is jumpered to manual.
Strange thing happened today though when I started it to make sure the battery hadn't gone flat.
After I switched the engine off I could hear something running in the eas box for about 20 seconds and then switched off.
In case it was a fluke I started the car again and switched off and heard it running again for the same length of time and then stopping.
In 4 years of ownership I have never had a peep out of the EAS unit as it was disabled to all intents and purposes..
Any ideas or is my vehicle psychic and getting itself ready for its new airbags and height sensors ? lol.
The pump relay was removed from the fusebox when I fitted a new fusebox 4 years ago

kermit_rr · Oct 25, 2020

The eas pump isn't supposed to run when the engine is off, are you sure that's what it was making the noise?
If there's no relay there's no power

Henry_b · Oct 25, 2020

You'll need 4 Dunlop height sensors and bags

And a recalibration - add on a compressor and valveblock rebuild and the removal of the manual override..

Worth it though, a P38 on EAS is far better than any Coil sprung jobby.

oakey · Oct 25, 2020

Was it definitely the EAS pump? Could it be the ABS pump?

kermit_rr · Oct 25, 2020

oakey said:
Was it definitely the EAS pump? Could it be the ABS pump?

That shouldn't run either with the ignition off?

oakey · Oct 25, 2020

kermit_rr · Oct 25, 2020

The valves could be making noises i guess, though there can't be any pressure

alanlucas · Oct 25, 2020

oakey said:
Was it definitely the EAS pump? Could it be the ABS pump?

definitely something in the eas box

domino · Oct 25, 2020

Pump relay in fuse box or the 'relay' (timer) under the px seat?

alanlucas · Oct 25, 2020

domino said:
Pump relay in fuse box or the 'relay' (timer) under the px seat?

pump relay was removed at the time of fitting a new fusebox - haven't checked the relay timer.
there shouldn't be any power going to the unit and its never happened before in 4 years of ownership.
I took the lid off but there wasn't any vibration from the pump itself, but something was definitely oscillating in the eas box

Henry_b · Oct 25, 2020

Valves in the Block would be the only thing in there that will make noise!

alanlucas · Oct 26, 2020

update - whatever it was doing last night it hasn't done it at all today ??

Yamawg · Oct 26, 2020

As my first 'proper post' I got to ask, I am in the same boat, I just bought a P38, that had a spring conversion 15 years ago, and so think going back to air suspension might be a good idea.
Would the quality of a new air suspension system be better than anything Land Rover ever did?

Henry_b · Oct 26, 2020

Yamawg said:
As my first 'proper post' I got to ask, I am in the same boat, I just bought a P38, that had a spring conversion 15 years ago, and so think going back to air suspension might be a good idea.
Would the quality of a new air suspension system be better than anything Land Rover ever did?

There was nothing wrong with LR's system the only reason it falls on its face is due to lack of owner understanding and maintenance.

You have to see what's been removed, some even remove the sensors with a coil conversion "for some reason".

It'll need a valveblock rebuild + compressor rebuild assuming it still has them fitted.
4 airsprings and the manual override removed at a minimum..

And hopefully the EAS lines have been capped..

kermit_rr · Oct 26, 2020

I think most if not everyone who goes back to air, uses the stock setup, there are different airbags available but they aren't cheap

alanlucas · Oct 26, 2020

I agree with Henry B.
Poor maintenance or maybe the cost of new airbags 15 years ago. When i bought mine, it needed a new front prop, aircon condensor, cabin air filters, wiper blades, scuttle foam, digital amp as it was missing along with the cd changer, tyres, new front window regulators, discs, calipers and pads and hoses. Also front door lock linkage clips and door cards and parcel shelf. also rocker gaskets and ht leads. Every car I have ever owned has been put back to perfect working order. Putting mine back on Eas will be fairly straightforward so long as you proceed methodically and logically. New bags and sensors, connect it all up and test for air leaks and take it from there. If pump is dodgy change all the seals and renew the dessicant in the drier. Get the eas sofware and lead & also an ELM lead and obd software too for your engine ecu.

alanlucas · Oct 26, 2020

kermit_rr said:
I think most if not everyone who goes back to air, uses the stock setup, there are different airbags available but they aren't cheap

yep. if you are loaded, get the arnott bags - i'm sticking with the original dunlops

Yamawg · Oct 26, 2020

alanlucas said:
yep. if you are loaded, get the arnott bags - i'm sticking with the original dunlops

So as a general rule, when something is way more expensive in Range Rover world, is it going to last longer, and generally be worth the difference in price, or is brand snobbery?
I noticed the Arnott bags are about £90 a corner compared to £50 for the Dunlops, so wondering what you get for twice the money?

alanlucas · Oct 26, 2020

Yamawg said:
So as a general rule, when something is way more expensive in Range Rover world, is it going to last longer, and generally be worth the difference in price, or is brand snobbery?
I noticed the Arnott bags are about £90 a corner compared to £50 for the Dunlops, so wondering what you get for twice the money?

They are tapered and have a stainless retaining clip at the top. Supposed to be superior to the dunlops. As to whether they last longer god knows but they have a 5 year guarantee versus 2 years for dunlops

alanlucas · Oct 26, 2020

new coil fitting kits will cost more than dunlop bags

P38A eas - car on springs w reg thor 4.6 vogue

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