we've had this problem twice now. both on very hot days in texas, that's the only similarity we can come up with. seems to happen pretty randomly. when we leave the truck sitting for 15-30 min and turn it back on, none of our gauges work. no RPM, no MPH, no oil pressure, no coolant. the air pressure works though.
when it happened the first time, we tried turning the truck off and on every few min, multiple times, it didnt fix itself. the screen shows a check engine and an abs light. after leaving it for 5-6 hours, when it got dark later in the evening we started the truck and it finally went away.
a week later its now happening again, a hot sunny texas day, 100 degrees, we got pulled over by DoT for 15 min and we cranked the truck back up, no gauges. well, we can't sit on the side of the road so we're gonna drive it to the next truck stop and see what we can do.
when it happened the first time, we put it in the shop and told them about it, along with many other problems, half of all weren't fixed (gotta love werner's terminal mechanics), and i guess this wasn't fixed either. my guess is that the mechanic turned the truck on and said "well, looks like they're working now" and that was that. this isn't a consistent problem which is why it makes it so hard to pin point and fix.
i think it might have something to do with the heat and a sensor somewhere making it malfunction, or maybe its just a coincidence that it happened in texas twice now, and no other states. but i'd love to know how to get rid of this problem when it does happen. having it sit for six hours maybe reset the trucks computer, and i'd love to know how to do it manually.
thanks
pete 387 instrument gauges not working
Discussion in 'Peterbilt Forum' started by MustangMark83, May 7, 2011.
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