P38 Pain in the backside

stevo88 said:

right, i've just had the car running, seemed to be building pressure, but there is a leak from the tank feed pipes collet n o-rings, so will need to wait for the new ones to get here, but i also had pressure switch low on hawkeye live data? and as you may well have already guessed, it didn't rise either

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Is there any air coming from the exhaust port when compressor is running? If so check valve seat and clean, stretch spring a little (2mm or so) on diaphragm solenoid valve, the one on top of diaphragm block last one nearest bulkhead. Collet will not cause a leak unless it is damaged. O rings, scores on pipe will, try a bit of silicone grease or even washing up liquid on the O rings and pipe and pushing pipe in, then when there is pressure in the system try pushing it in again they go in just that bit further because air is pressing the O rings out. And usually seal. There should not be enough air escaping from that to stop pump building.