Good evening guys, looking for some input.... my 08 gauge cluster has been acting funny while driving. all gauges are at dead zero exept for volts which is just under 14. it has been doing this and then going back to normal, all while im driving and the truck kinda bucks alittle when it acts up. ive been looking at these forums and see batteries could be the culprit seeing how they are ac delco, im assuming they are original. but on the other hand im seeing possible cluster took a shit! im now stuck in my customers driveway and truck wont even attempt to turn over.... I have radio, windows work, blinkers but no cluster and check engine light is on along with the glow plug light but the glow plug light will eventually go off and come back on and it did this while driving as well......???? any ideas? thanks.......