AC not working, pressure gauge maxed

[jreed]

I have a 2013 Fusion that has failed AC. When I push the AC button, i can here the engine idle change but dont know that I hear the click of the compressor.

I purchased refridgerant with a guage. When I connect the guage to the low pressure side, the pressure immediately goes to max. What does this indictate?

[akirby]

It indicates that you should take it to a mechanic with the proper equipment.

[drolds1]

It indicates that you should take it to a mechanic with the proper equipment.

This. And take the advice of a pro:

http://www.fordfusionforum.com/topic/15551-weird-ac-issue-wont-take-refrigerant/?p=94818

[sirtanon]

I have to agree with akirby and drolds. If your A/C system isn't working, and basic tests/equipment tells you that the low pressure side is maxed out, that's when you stop. Failure to do so could possibly result in serious damage to the system and potentially injury. Like the Zohan, you just don't mess around with A/C systems.

[twiggy144]

The evap temp sensor is a common failure on Fusion's.

 

Check these discussions: http://www.fordfusionclub.com/212-interior-modifications/600601-defective-evaporator-discharge-air-temperature-sensors.html

 

http://www.fordfusionclub.com/214-maintenance-care/641754-2006-ford-fusion-evaporator.html

 

http://www.fordfusionclub.com/214-maintenance-care/622026-c-not-working-heres-why.html

 

http://www.fordfusionclub.com/212-interior-modifications/630649-c-evaporator-discharge-air-temp-sensor.html

 

http://www.fordfusionclub.com/202-ford-fusion-mercury-milan-lincoln-zephyr-mkz/619945-ac-fixed-now-engine-whines.html

[drolds1]

There are no reports of this issue on 2013+ cars, which have a different HVAC system from the first-gen cars.

[jreed]

Im going to get it to a dealership as soon as Im able.

 

I checked the fuse and relays last night and everything looked ok. Also reconnected the guage and checked again. This time it was at 70psi with the AC on max. It doesnt seem like my compressor is kicking on. Like I said, the idle of my car changes when I turn on AC but dont hear the click of the compressor. I even took out the relay and got the same result.

[thefoeyouknow]

When the system is static (clutch not engaged), you'll find that system pressure will be more or less equal to ambient temp in F. If you're reading 70psi, you're not engaging. Who knows why, but there is always the old standby of disconnecting the battery 15 minutes. The clutch is managed by computers, and every now and then a computer needs the old 3 finger salute. After you try that, go see the dealer.

 

And as always do not add refrigerant yourself. If a shop knows you did, they probably won't touch it for fear of getting their 3,000 to 10,000 dollar machine fucked up with sealant. You can never be sure your walmart refrigerant cans don't have "stop-leak". Quotes, because stop leak doesn't stop leaks, it fucks shit up.