This is strange.. 2 weeks ago we replaced the fuel pump in my truck. So yesterday I'm driving down the road (With a FULL tank of gas) and Whammo the low fuel light pops on and the gas gauge goes to empty. So I pulled over, turned off the truck and turned it back on. Needle came back up. Went through this process 3 times.. Finally it stopped on Empty. The 4x4 Switch is not lit up, and the rear wipers will not turn on either. Any ideas?