so I gotta good deal on a 2001 International 9400 with a Detroit 60 12.7.......or so we thought. Me and my wife been trying to figure out wth is going on with our truck. When the truck runs, the pressure gauge is dropping about 30 psi in 15-45 seconds. The a/c isn't running and we are just having tons of issues. We checked the filter in the air dryer, and changed it. Not the issue, checked the lines, not the issue either. It went from not being able to hear the leak when parked and brakes applied to now we hear it and fixed that issue. My wife thinks its possible blockage in the air line, possible somewhere with the secondary tank. Any suggestions on this issue. We are just fed up.
air pressure issues.
Discussion in 'International Forum' started by madtrucker2014, Feb 14, 2015.
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If you are able to get under your new truck with soap + water spray every thing till you find and fix leaks, ck,air bags in rear supp. pull or turn drains at end of tanks to ck. for equal press. in each tank?
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Hmm, maybe the signal line to the governor.
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Are you saying the pressure does not drop with the engine off? Probably fan clutch leaking.
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+1 signal line to gov...what uncleal13 said
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ETA: could be related to the AC problem?
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