Re: Intermittent gauges
Reply #3 –
You have a blue box under the hump in the dash. They fail, completely, partly, intermittently. The inputs to the blue box come from a variety of sources. Your air pressure transducers are powered by the blue box. When something fails in the blue box, no air pressure signal to get interpreted and sent to the electronic gauge. All of the dash gauges are driven by the blue box.
My box is gray, both air pressure gauges and the voltmeter quit. The air pressure gauges are now replaced with direct read gauges connected to the tanks. The start battery gauge has been replaced with an air pressure gauge connected to the HWH tank.
The blue box is apparently neither repairable or replaceable.