Basically just got my truck back after 2 weeks in service for the EGR valve. 3 days after purchase nonetheless. NOW I have codes P0483: Cooling fan rationality check malfunction and P0526: Cooling fan speed sensor circuit. Loss of cool A/C at low speed or stop but once over 50, A/C gets cold again. Anyone else deal with this? I will update after I take it to the dealer in the morning.