The condenser fan works intermittently and the compressor cycles on and off every 10 - 15 seconds (stays off for about the same amount of time. I hooked up the gauge to the low side port to check pressure and and it skyrocketed into the red-zone...like 100+ psi. Hoses are warm to hot. I have owned the truck since it was new, never added 134a and still have not. fan motor? Resistor? Relay? Any help? Dodge Man..you out there today?