P38A eas problems

This site contains affiliate links for which LandyZone may be compensated if you make a purchase.

badfluffy

Well-Known Member
Posts
1,625
Location
northampton
I have looked at several threads on the eas faults and just need to check im looking in the right direction.
when i use the emergency valves it stays up so im making the assumption the bags are ok, how ever when connected to the valve block the front drops over night followed by the back next day, the pump has been rebuilt so am i now looking to have to rebuild the valve block or is there something else wrong?
 
I have looked at several threads on the eas faults and just need to check im looking in the right direction.
when i use the emergency valves it stays up so im making the assumption the bags are ok, how ever when connected to the valve block the front drops over night followed by the back next day, the pump has been rebuilt so am i now looking to have to rebuild the valve block or is there something else wrong?
With the valve block connected, either leave the tailgate ajar if possible or pull the EAS relay under the passenger seat to disable the self levelling. If it stays up, the valve block is OK, if it goes down, the pipes into the block should be checked for leaks with soapy water, if no leaks it's valve block overhaul time. Mark the solenoids and the block so they go back in the right place and I suggest you do one valve at a time.
 
With the valve block connected, either leave the tailgate ajar if possible or pull the EAS relay under the passenger seat to disable the self levelling. If it stays up, the valve block is OK, if it goes down, the pipes into the block should be checked for leaks with soapy water, if no leaks it's valve block overhaul time. Mark the solenoids and the block so they go back in the right place and I suggest you do one valve at a time.
Awesome advice. I am trying to diagnose a similar problem.
 
I have new air bags, reconditioned pump and valve block, and a set of emergency valves. With the EAS module disconnected it stays up. When I connect the EAS module it immediately opens the valves in a series of sharp exhaust whistles - more like farts actually - and drops it to its stops. Should i be checking the valve block for leaks or is it more likely to be an EAS fault condition?
 
I have new air bags, reconditioned pump and valve block, and a set of emergency valves. With the EAS module disconnected it stays up. When I connect the EAS module it immediately opens the valves in a series of sharp exhaust whistles - more like farts actually - and drops it to its stops. Should i be checking the valve block for leaks or is it more likely to be an EAS fault condition?
I should say I have tested the pressure from the pump and the air dryer and they are both strong.
 
I have new air bags, reconditioned pump and valve block, and a set of emergency valves. With the EAS module disconnected it stays up. When I connect the EAS module it immediately opens the valves in a series of sharp exhaust whistles - more like farts actually - and drops it to its stops. Should i be checking the valve block for leaks or is it more likely to be an EAS fault condition?
Is the spring present on the air release diaphragm? Are the nrvs in their correct position also?
 
I have new air bags, reconditioned pump and valve block, and a set of emergency valves. With the EAS module disconnected it stays up. When I connect the EAS module it immediately opens the valves in a series of sharp exhaust whistles - more like farts actually - and drops it to its stops. Should i be checking the valve block for leaks or is it more likely to be an EAS fault condition?
Have you calibrated the heights or is that not possible?
With the EAS connected can you do diagnostics to read the faults? A hard fault may drop it to the bump stops.
 
Have you calibrated the heights or is that not possible?
With the EAS connected can you do diagnostics to read the faults? A hard fault may drop it to the bump stops.
Hi Datatek - i have not got a nano com, so I can’t read the faults - would i also need that to calibrate the heights?
As a bit of background it worked fine when driven from the garage but collapsed about a 100m later on leaving the M5.
 
Hi Datatek - i have not got a nano com, so I can’t read the faults - would i also need that to calibrate the heights?
As a bit of background it worked fine when driven from the garage but collapsed about a 100m later on leaving the M5.
The free RSW EAS software is what you need runs on a Windows laptop.
Any message on the dash?
 
The free RSW EAS software is what you need runs on a Windows laptop.
Any message on the dash?
I’ll check the dash when I can get out to her and let you know. Probably later today. Do you know where i can download the software please? Presumably I’ll need a cable of some kind too?
 
Hmmm. Any chance you can add a bit of detail to this please for an ignoramus like me? Where is the air release diagram and what does it look like?
In the valveblock.
 

Attachments

  • 4C7BF00B-4D71-42D1-892E-28D1304BF998.jpeg
    4C7BF00B-4D71-42D1-892E-28D1304BF998.jpeg
    136.1 KB · Views: 46
  • 0355A814-D7F6-41F6-A614-A2B108EEC3CF.jpeg
    0355A814-D7F6-41F6-A614-A2B108EEC3CF.jpeg
    117 KB · Views: 50
Hmmm. Any chance you can add a bit of detail to this please for an ignoramus like me? Where is the air release diagram and what does it look like?
On the valve block near the exhaust filter, inside that block its screwed into there is a diaphragm, it has a spring to return it to its position. If its missing it will constantly let air escape which in turn makes the compressor run.
If you've no diag to confirm any faults you could be piddling n the wind :eek:
 
Last edited:
Back
Top