Dieselfixer Posted January 23, 2013 Share Posted January 23, 2013 Hi All I'm having a bit of a brain freeze here. Working on 95 CH613, Builds 120 lbs primary air but only 100 lbs secondary. Secondary comes up slower than primary. Truck has 2 air tanks mounted in front of the right fuel tank. AD9 drier, no check valves that I can see. Ideas? Quote Link to comment Share on other sites More sharing options...
Lmackattack Posted January 23, 2013 Share Posted January 23, 2013 Sounds like a bad check valve. Or the system has a leak and the 2nd tank never gets over 100psi... Is the gauge reading correctly. Quote Link to comment Share on other sites More sharing options...
Dieselfixer Posted January 24, 2013 Author Share Posted January 24, 2013 Thanks for the reply. I found the problem. Forgot the check valve is mounted to the firewall and not the air tank. Quote Link to comment Share on other sites More sharing options...
Lmackattack Posted January 24, 2013 Share Posted January 24, 2013 Good to hear... Quote Link to comment Share on other sites More sharing options...
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