Given the age of the vehicle, loss of refrigerant can be expected. Your mechanic can put some in the system, then check it for leaks. The problem with GM and Ford systems is there is no way to know how much refrigerant is already in the system except to draw it all out, then pump in the measured amount called for. Without doing that, you run the risk of over-charging the system which can be more harmful than leaving it under-charged.
Friday, April 27th, 2018 AT 2:14 PM