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i ignore the vehicle has moved fault, i think testbook reads it as something slightly different and then adds a note to i say this is not a fault, (some abs testers give a simular message saying vehicle has exceeded 10kph but this is not a fault)
a small difference in the calibrated target heights is normal. the problems start when the combined difference between actual and target heights on the same axle start to exceed about 10 to 12counts.
Thanks again Rupert, If the inlet valve has a bad seal would that reflect in the ride height lowering overnight. The reason I ask is that I am thinking of checking the NRV's again for ware but I have no sign of leaks & the RR holds its height for days without any significant movement when parked and shows no erratic movement while driving also the compressor does not appear to be running that often compared to what I read re other owners comments. Is there anywhere I get replacement NRV's? Cheers Phil
I am looking for an exhaust NRV and plan to buy a used Valve block in the UK and have a mate take the NRV valve out and post it over. How long can you wait and are you willing to take a punt on a second hand valve? Whats a NRV valve worth?Quote:
Originally Posted by philjphil
Silly me had a valve block in my garage doing nothing so I gave it away for someone doing a project on a classic, I never though I would have any use for it.
if the valve block is working correctly, you can remove the inlet and exhaust valve and the vehicle should stay up, you just lose all reservoir pressure.
the tip of an NRV has to be very worn before it stops the O ring from sealing and replacement O rings are readily available.
if you need it i do a valve block testing and repair service either directly to me or via TR Spares Padstow NSW
Thanks for the offer but the more I find out the less I think it is a valve block issue. Today I cleaned the front height sensor connectors & swapped the sensors over side to side. I found that on the one sensor the bolts were only finger tight, recalibrate ride heights which were not far out... so far so good but not holding my breath.Quote:
Originally Posted by wayneg
Thanks, that sort of steers me away from the NRV's as the reservoir pressure also seems to be holding well. If I don't get some joy soon (see last post) I will look at sending the V block to you if I can arrange another vehicle to cover the down time. What would be the turn around time?Quote:
Originally Posted by Rupert Prior
Phil - can't remember if you have an EAS Bypass Kit or not... If you do, just insert the spare straight-through or elbows where the tee-pieces usually go and you can inflate the bags manually with another compressor or service station air compressor while the valve block is out.
Cheers, Paul.
i try to do testing and diagnosis the same day i recieve the unit, so if there is nothing wrong turn round time just depends on how long the couriers take, which from Gold Coast to Sydney is usually 24hrs each way. i keep rebuilt units in stock which is quickest, repairs to customer supplied units are cheaper but take longer. driver units i can only inspect for visible damage, this does give a good indication of their faults but not 100%. it is recommended that they are replaced when the valve block is changed or rebuilt.
Thanks Paul & Rupert for your continued help. I do have an emergency EAS kit so we will see how we go this week after cleaning & changing over height sensors, failing that it may be time to look at sending Rupert the V block. The reason I am looking at the height sensors is that all appeared to be OK when I installed the driver Paul sent up until I went through a car wash just before going to the tyre shop. The car wash had an underbody wash system & I was thinking that it may have triggered an electrical issue causing the fault to come back as I drove out of the tyre shop. As you can probably tell this is playing mind games with me but I am now P38 hooked for some weird reason :angel::):(
there must be something contagious here... mine has started to lose pressure in the past couple of weeks too.
Was just out in the garage and noticed the tank pressure had dropped from 130psi earlier this evening to approx 60psi in the space of a few hours. I had pulled the delay timer to exclude self levelling.
It was very quiet out there and I could hear a slow hissing from around the valve block. Did a quick soapy water test to check all the tee-pieces and had already isolated the on-board air kit and locker lines.
Loosened the exhaust filter and the hissing got a lot louder. A ha! looks like I need to check my NRV too. Probably not tonight though... It might be Spring, but it's still Winter in Canberra.
Cheers, Paul.