Posted By: buffaloman chris
Help on my 2010 F150 A/c system - 07/14/18 11:53 PM
Been a while since I’ve posted but I need some help and hoping someone can give me some ideas. My 2010 f150 ac system has a bug and I can’t find the issue. Problem is it will not cool below 60 degrees once it gets hot outside. I have changed the evaporator core due to being clogged with dirt and not much air flow going through. I changed the expansion valve too. I changed the condenser last month due to the power steering cooler leaking. This morning I put a new compressor cause the pressure was jumping around erratic on low side. So as you can see the entire system is pretty much new except for the heater box, actuators, and lines. I’m the morning when it’s cooler it will get down to 45 or so. But once it get above 90 outside it’s done. At 70 mph it’s 65 out the vents. Sitting in traffic it gets hotter. The low side pressures are 35-45 and high side pressure is 200-250. The cooling fans are working and do step up in speed when conditions are correct. I have ran out of ideas except for replacing the box. But at 400$ I’m just not sure at this point.