Chosen Solution

2008 F150 Air conditioner blows tempid air the gauge shows coolant, the compressor kicks on but no cold air..

merrie chase “gauge shows coolant “ not sure which gauge this is. You are not referring to the coolant gauge on your instrument panel….Right now I would recharge the system and check for a leak. It is a 10 year old vehicle and could easily lose refrigerant. This video should at least get you to that point. Same idea on this video

looks like the thermostat has failed and needs replacing.