2004 Vision shuts off while driving, only to restart 5 minutes later

[farmersdaughter]

I recently purchased 2004 Mack Vision. One night driving the highway, it randomly shut off, forcing me to pull off, half blocking an on ramp. The truck would not restart at first but after about 5 minutes it started up again. When it started the lightening bolt light was on on the dash, and my voltage meter was acting crazy. This has happened about 3 times now. Unless it was just coincidence, the radio also quit working at this time, it would continually light up and turn back off and there was no way to stop it. Anyone know anything about this???

[gearhead204]

INSPECT WIRE HARNESS FOR DAMAGE SOUNDS LIKE A SHORT OR GROUND ISSUE

[Macktech689]

Possibly a problem with one of the three power relays, They are located in the " glovebox " area on the left side tucked behind the dash.

[turckster]

Need to know the fault, might be a 9-2 by what you describe. A 9-2 fault is loss of power while the key switch is in the on position. Check all connections-at the battery, starter and firewall, positive and grounds, including the ground relay.

Good luck.