Range rover p38 eas dropping

Hi everyone so my suspension suddenly decided not to raise so I did a valve block rebuild (the diagram was split) and all works fine now apart from when I turn the car off after a little while it will drop on the front left what have I done wrong? I've taken it back apart and everything is where it should be I've rebuilt them previously without any problems any help would be most appreciated it also has brand new bags all round
Thanks in advance

You have a leak.

wammers said:

You have a leak.

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Lol I figured that much out

P38crazy said:

Lol I figured that much out

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Find it then, i can't do it from here.

Spray soapy water on the air bag, it should bubble if thats the source of the leak.

mick

Duff new airbags are not unknown, but the favorite place would be where the pipe goes into the airbag. Give it another push. Otherwise, a dodgy height sensor can cause problems.

As datatek says. If not a leak, then front height sensor. Did you recalibrate? Worth plugging in software to see what's going on, will tell you if you have a faulty sensor/signal.