Question:
I have a 1997 Range Rover 4.6
HSE, petrol, auto.
When I turn off the ignition with the EAS set at normal ride height, the car quickly drops itself to the access height / the bumpstomps. I can hear the EAS module clicking as the car drops
If I set the
EAS to high before leaving the car, it doesn’t drop at all even over a 3 or 4 day period. Jump in the car and its still set to high.
From access height I have to weight 5/10/15 mins with a door open before I can shut the door and the car will raise to normal height. If I don’t do this it takes 20/30 mins to get to normal height as I’m driving (and twice the EAS warning has kicked in with a “air pressure fault” – as diagnosed by your software)
I have fitted new airbags; Arnott gen II kit – they’re not leaking.
There are no leaks at any of the hose lines o ring points (soapy water tests)
The compressor works (checked with EAS software and jumping the relay)
If the car has been running for a while (over an hour) then everything works fine, car rises and lowers as required to the correct set heights.
I’d appreciate your thoughts on how to get the car back to full working order.
Thank you in anticipation,
Mark
Answer:
Mark,
My first impression is that you have a Faulty EAS Driver Pack. There are a few symptoms associated with a failing EAS driver pack;
The vehicle will change heights unexpectedly and or unevenly; Suddenly changes heights without being prompted.
The compressor operation is sporadic and not continual; Runs for 30 seconds stops for 30 seconds repeating.
The compressor operation should be continuous when the air tank is low. So for example, if you try to raise the height from access to extended profile, the compressor will need to run until the reservoir is once again full. The compressor should run continuously for about 15 minutes and then stop. Once stopped, and no further air pressure is used, the compressor should not come back on. If the compressor cycles on and off over and over, then this is almost always an EAS driver pack fault.
With your vehicle, next time the compressor runs after you change the heights, monitor whether and how frequently the compressor is running. It should be quickly obvious that it is cycling on and off.