{"text":"hey im having trouble with my air system 2013 dd15 Coronado. Air works good for a while, when it needs to fill back up it does and purge valve purges when air thank is full, the problem is soMe times the air goes down to 102 and the purge valve stars to leak and the compressor won’t build up air, i have a double air dry cartridge I changed both of them, then changed purge valve then the governer and finally changed the turbo cut off valve. Didn’t fix the shop is saying I need to change the air dryer completely ($1600 ) I’m just wondered what if it’s not the air dryer but the compressor witch is $2700 the prices are just the parts. \rThanks in advance","pics":"[]","canComment":true}