Thread: EAS Overhaul and GOE Emergency Air Installation

The compressor compartment was pretty caked in mud and the deutsch connectors were not even visible!

IMG_1322.jpg

However, after removing and cleaning the unit, I found that although there was some mud particles on the inner openings of the electrical & air connectors, it didn't seem to go further in.

So I fitted it all back and fired her up.. still with the same 'suspension error' on the dash and IID reporting height sensor errors on all corners (I read somewhere this can occur when the suspension doesn't rise when requested). I reset it a few times and could hear the compressor fire for a few seconds and then shut off. What could it be I thought?

I then checked the height adjustment settings via IID and saw that I had the height adjusted to it's max (ie off-road for normal height). I reset to normal, cleared the faults and bingo!

It took about 3 mins to fill the tank and rose very slowly off the bumps, but it got there and after a test drive while selecting access/normal/offroad, it all seems to be working again. I'll still replace with the AMK upgrade kit ($1350), but thankfully I don't have to do that this week.

Lesson learnt re> adjusting the height settings. If the suspension errors out, reset this first before clearing faults.

I still want to add the emergency air up kit though. Thanks for the pointer to that thread - it's perfect.

I would just put a service kit in your Hitachi before replacing with an amk.

Just make sure the service kit includes a new piston seal ring and get the alloy dryer cover too.

I put the service kit in with changed seals, beads, piston ring and alloy cap about 2 years ago and it got me out of trouble back then - I had the 'suspension still rising' warning and only 'normal height available' error.

It bugs me the suspension rises so slowly.. I heard the amk is much faster. But I guess I have better things to spend $1350 on right now!

Something I thought of last night, the issue I had could also occur for those using the Llams unit. It seems like the computer registered height sensor faults because it was higher than expected for bump stops? I dunno. But glad it was an easy fix.

Originally Posted by Disco4TT3

I heard the amk is much faster.

Yes a brand new AMK will always out perform a knackered Hitachi.

There are clearly differences in compressors but when like with like is compared, there is not much different between the two when operating in the real world. Over time the AMK has not proven to be more reliable than the Hitachi - noting that if there had not been an earthquake in Japan just over 10 years ago there is a good chance the change to AMK would not have occurred.

Be aware that both now have cheap copies which may have dubious quality, but when genuine is used both are pretty good. Both should have been made a service item with things such as desiccant being changed as part of a service - but then for about the cost of a set of tyres every 10 - 15 years is replacement such a worry. I have refurbed mine once at 10 years of age and I cannot see why the Hitachi cannot continue with servicing for a long while yet.

Garry

Originally Posted by 101RRS

Both should have been made a service item with things such as desiccant being changed as part of a service

100% agree - so easy to service, yet last time I checked, you can't even buy the drier separately from LR, let alone a service kit. I was told you had to buy the whole pump!

Originally Posted by Disco4TT3

100% agree - so easy to service, yet last time I checked, you can't even buy the drier separately from LR, let alone a service kit. I was told you had to buy the whole pump!

Yes you can. A simple google search shows the desiccant canister available online

LR023964

Cap Filter For LR3 discovery 3 4 Air Suspension Air Compressor Pump Repair Kits LR023964 LR010376 LR011837 LR015303 - AliExpress Mobile

Yep saw them on eBay too - but not from LR - or so I was told.

The replenish kits are easy enough to use.