[77newell]

Archie: when you say the pressure suddenly drops I hear you saying that the pressure is dropping in seconds rather than at the usual bleed-down rate when traveling which would take 10 minutes or more to drop that much. Basically, I'm trying to figure out what the relationship is or isn't to the normal pressure bleed-down and rebuild cycle. If the pressure stays up and then suddenly drops but immediately starts to rebuild I would guess the the pressure sensor is sticking. If the pressure is dropping normally but then suddenly drops and then suddenly rises I would guess the sensor electrical ground in intermittent. If it is dropping gradually beyond the normal kick-in point to recharge then I would be where GringoPhil is. The source of your problem will be pinpointed by the pattern of the ups and downs.