Home › Forums › Stay Dirty Lounge › Service and Repair Questions Answered Here › Air Conditioner Acting Up!! › Air Conditioner Acting Up!! May 27, 2012 at 11:00 am #443362 EricTheCarGuyKeymaster Try checking the operation of the cooling fans and there’s no way around this part you’re going to need to check the pressures with a manifold gauge set, if you don’t know what the pressures are in the system you can’t begin to diagnose it.