flint54 Posted December 24, 2011 Posted December 24, 2011 Supposed to be ~40psi at the rail. And there was, right up until installing the Hesco adjustable regulator. Now there's no residual pressure. Shut off the motor and pressure goes to zero. Not a calamity, but makes for longer cranking. Put the old reg back in and system holds pressure just fine, so it's not a check valve issue. Somehow the AFPR is permitting pressure loss when pump is not running. Exchanged the regulators twice to reproduce the problem. The O-rings are fine, no damage. Anyone else with the AFPR have this issue??
HOrnbrod Posted December 25, 2011 Posted December 25, 2011 You have the weirdest problems. :D I've had a Hesco AFPR on mine for over five years now, and it holds pressure just fine, overnight even. Maybe the design was changed, IDK. Suggest you logon to the Hesco forum and ask Lee in the Jeep Tech forum.
flint54 Posted January 2, 2012 Author Posted January 2, 2012 Yes, I do. As it turns out, it wasn't the AFPR after all, it was the connection between gauge ant shrader valve. Intermittent. Pulled and cleaned the core, and all is well. Holds 40 psi with motor off for about an hour, then drops to 30. Good enough for me, for now.
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