Go to autozone and get a manifold vacuum ac gauge for R134a. Ofcoarse, also pick up a can of R134a. Hook up the gauges to the valves on the AC hoses. Add the refrigerant but watch the pressure on the gauge!! Any good manual will tell you the max pressure for the system.
On the low pressure side which is close to the accumulator by the firewall.
134a
yes,a good parts man will give you a belt to bypass your ac.
ac charge valve location on 1999 ford pu
left side on firewall should be on the side of ac condencer
r134 should be about 2 lb
The AC port for a 1999 Ford F150 is in the back of the engine compartment near the firewall. It is the larger of the two hoses going to the compressor.
On the receiver/dryer.
Take it to a Ford Dealer.
Diagrams of a 2001 Ford F150 AC system can be purchased at any auto parts store. If the store does not have it in stock, it can be special ordered.
You probably have a leaking heater core.
Take it to someone with the equipment to do so.