Hello all, as you may know im new here and just recently bought an 88 gt. Im having trouble troubleshooting the lack of cool air coming from the ac.
The previous owner said it had been working not long ago, but didnt when i test drove it. The compressor does seem to come on since there is a dip in idle speed when i turn it on. I checked the refrigerant, and it was really low, almost gone really. Charged it up but still not getting cold air. While idling with the ac on now it seems to build pressure to full, then let off with a click and reduction in pressure, then builds again when pressure reaches low. It cycles like this constantly.
I checked to see if theres debris behind the resistor in the front compartment, per fierofools recomendation. Nothing on the resistor, the heater core, or in the passage from what i can see. Looks exceptionally clean and shiny actually. I did find a single pine needle sticking out of the heater core but nothing else..
Any ideas? I had a problem with my 86 k10 cycling the compressor before, but that was due to low pressure in the system. The fiero seems to have sufficient pressure, and the click from it cycling seems to be audible from the front and not the compressor.