I have a THEORY on why tag air dump is automatic in reverse and not otherwise. I have no facts from engineers to prove it but here it goes....
Could it be that this is to avoid too much weight on the tags if backing up an incline or a sudden incline like a driveway approach? Imagine the tags hitting a 5% grade like the beginning of a driveway and trying to support much of the weight from the drive axle.
IT IS A THEORY.
Of course, that doesn't explain going back down that same incline but maybe the dynamics are a tad different. Just a though.
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Don, Sandee & GSD Zeus. Guardian GSDs Gunny (7/11/15) & Thor (5/5/15)
2006 2015 DSDP 4320 4369, FL Chassis, 2013 CR-V 2020 Jeep Overland, Blue Ox Avail, SMI AF1.
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