Returning had to re registered. Have a '97 RR P38 -

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'97 P38 had some earlier issues all of a sudden. Got past those and broke down and bought the EAS kicker and Becm blk boxes. Was all good. EAS fault came up a couple times and kicker resolved but... now some major fault apparently - riding in town getting home on bumpers is a ba.. jarring experience.
Tried kicker a couple of times "cleared faults - but just one time I heard the compressor kick in for a couple seconds - last time i heard it.

Before this - no real reoccurring issues. Just some times it seemed compressor ran to much. Some times come out in morning vehicle dropped to enter level. A few times could hear air release from rear just after it was parked. It always adjusted on its own between city and highway driving. Never was the vehicle off balance, front or rear fail or took to long to fill. Recently after it was parked for a few months no issues for a couple weeks of almost daily driving and then progressively the compressor running etc started.

So - will go over what I have done,
Inspected compressor / disconnected from outlet - did the relay 20 jumper by pass and ran - only a little air coming out. So got the X8R kit and rebuilt - dramatic improvement - but not sure what perfect should be - one can still block the air outlet with finger with out much trouble.
Installed compressor Plugged in kicker cleared faults again started it again still four flashing lights and EAS fault and did not hear compressor running.

Had also got the valve block rebuild kit X8R with diaphragm and the pressure switch.
Rebuilt the valve block - which appears to be a 2006 version - part date stamps and several "tested" stickers on it. So has already been replaced / rebuilt.
(didnt replace pressure switch - tested original - open properly when block had no pressure / no continuity)

So through it all back together today - doesn't take much time second time around -
Just to be sure - ran the Becm black box and then the kicker - all communicating all green flashing.
Started it up and EAS / flashing lights that go solid
Went through the whole routine again - and the same result - but this time I heard three high pressure puffs of air - assume through the valve exhaust port as I turned off engine.
Have to re test pressure switch - open - earlier but not sure if it had built up enough pressure for the switch to trigger.
Is a bad pressure switch enough to continue EAS fault - even with kicker "faults cleared"

Will do the "relay by pass" and run compressor for a bit longer and "maybe build some higher pressure - and retest switch.
Guess I can confirm tank pressure by partially opening one of the air lines at block.

What do I know; none of the rebuilt kits were tough to do - existing O rings looked OK but replaced / only the compressor pump seal was rough. Had inspected solenoids / plungers for any wear all rather good.
Compressor and primary power path is good.
Compressor rebuilt
Valve bloc rebuilt and no notable leaks

After the pressure switch retest - what next - suggestions?
Is there a way to test operation of solenoid module or is it just easier to replace?
All the solenoids are apparently only from 2006 and vehicle only has 130K on it.

Thx for help suggestions
Cheers
 
Welcome to landyzone nursery for starters. We have many coloured blocks of different sections.
IMG_20230504_162656~2.jpg
 
Hi and welcome
Best asking in the range rover section as not everyone might see this
True - got to get a handle on "all this" it again doesn't operate like some typical business "communications" outlook etc.
Can only work on P38 when the weather is warm - no room in garage for her - or so some think.
So I am on and off forum - but she runs rather well until some issue blows up. Only has 130K so not terribly broken in or broken up. Cheers
 
Hello and welcome :)
Brain, Thx again and glad I printed wammers post you sent me along with the block drawing because I cant find it anymore.
Computer hrdwr / programmer buddy is tracking me down a "tablet" I can dedicate to rover & grab the EAS Unlock program.

Ran the Rover to make sure not drawing down battery. Again EAS lights started indicating bumper wanting to move to driving height - before flashing lights of doom.
Wrapping my mind around your block drawing.

Then jumped compressor today ran for just a couple minutes - all wiring connections in place (before I pull block to double check rebuild) - single shot of air from exhaust silencer port when I pulled the jumper ( but now I am questioning - guess I will need GF to pull jumper / not absolutely sure if air blast is from exhaust silencer port or the pressure relief valve - loud blast of air - or does pressure relief not sound like that? - or is it more a progressive release - like a boiler?
Had tested pressure switch (contacts 7 & 9) - no continuity - soap tested everything no leaks (which proved to be almost nothing) - pulled all the air lines (including dryer) - no air what so ever in any line - until I had to fight to get "pipe # 6 - 6MM" most forward pipe - well there is where all the air was for probably 45 sec's of high pressure blow out.
So the compressor is definitely working at any event.

Now, if there is a "major" fault whether I have the key in position 2 or running - none of this system is going to operate at any event - correct?

Will pull the block and double check rebuild and diaphragm to see if anything is messed tomorrow.

Does this tell me anything at this point?
Or am I effectively hooped until I have the tablet / equipment to download the EAS unlock?
Cheers
 
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