What codes are now showing?
If the compressor is failing it may just be that its dryer is clogged which in an emergency can be run empty until more dessicant can be obtained.
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What codes are now showing?
If the compressor is failing it may just be that its dryer is clogged which in an emergency can be run empty until more dessicant can be obtained.
I think I've narrowed it down to the compressor not pumping air into the tank. I cracked the release valve on the air tank after running the compressor several times and there was no pressure in it.
Just seeing what connections I have to try and put air into the tank using another compressor.
My old man has a 13plate Disco 4 and unfortunately it has a different looking compressor, I was going to put his in and see if it fixed the problem!
The later compressor is an upgrade that involves shortening one of the hoses so once fitted, the old style can't be refitted.
Fault code C1A20 should be logged if the compressor is too slow at filling the reservoir. If it is then empty the dryer of its contents and try again.
I have successfully temporarily attached a tyre compressor to the inlet tube in place of the filter (inside the vehicle behind the left tail light cluster) but that also required some sort of clamp (small cable-tie or fine wire) on the ends of the little hose that's fitted between the compressor sump and another spot to prevent it being blown off when the tyre compressor is running.
Edit: There's a different fault code if the vehicle doesn't raise quickly enough. The reservoir isn't filled until the airsprings are up to height so C1A20 probably wont be seen if the vehicle doesn't raise properly.
If the vehicle was at a higher setting than normal (via LLAMS or rods) prior to it dropping to the bump-stops, then in most cases it will NOT rise. Not sure if that was the case here, but worth a try.Quote:
Originally Posted by Epic pooh
Cheers,
Gordon
It was at a higher setting due to llams before it dropped to the bump stops. I have since removed llams but still can't get the car to riseQuote:
Originally Posted by gghaggis
Because the compressor runs for even just a moment indicates that the suspension module is trying to raise the vehicle.
Would this indicate that the compressor is not functioning properly? When I check the tank pressure via my nanocom it is not registering any change in value.Quote:
Originally Posted by Graeme
The air-springs have priority over the tank so if the vehicle is not being raised then the tank will not be filled.
It does seem that the compressor is not pumping. An air dryer (black plastic container with screws in one end) is part of the compressor assembly and often becomes blocked. The dryer can be unclipped by rotating after removing 1 screw. With the dryer removed, dismantle the dryer and discard what's left of the dessicant then reassemble and refit. There's also an inlet valve on the compressor that wears out - a repair kit can be purchased as can new dessicant for the dryer. However there is a possibility that the compressor has worn-out beyond repair in which case a new-style compressor kit should be obtained. The new compressor uses updated software mostly to lower the reservoir pressure (to make the compressor last longer) but it will run with the existing software.
Thank's heaps for all your help Graeme! If you're ever in Newcastle or Dubbo let me know and I'll shout you a beer or four.
I pulled apart the dryer, there were a few discoloured balls in there and the filters were clogged up. I cleaned it all up and put back together. After that I checked the air pressure coming out of the pump and found that the air was just going back into the crank.
I'm going to have a crack at a repair kit before committing to the expense of a new compressor.
You're welcome! It seems a lifetime ago that I was last near Newcastle but I do go through Dubbo occasionally.
If you need a new compressor then a few people on AULRO have acquired them for a good prices.