Ambient temps between 85-90 degrees. I don’t have gauges for the high side. Only the cheap one on the recharge kit for the low side. Low side was about 45psi static. I am also perplexed that the psi is good static (low side) then drops when clutch engages. Without the Freon can attached, Freon is able to escape when the recharge gauge/kit valve is opened however, when the compressor is engaged, no Freon escapes from the low pressure connection when the same kit valve is opened, which would coincide with a virtually zero reading while clutch is engaged. It makes me think something is clogged or the compressor isn’t circulating the Freon?? There is a thin coating of ice/frost on the tube near the dryer (I think that’s the tubular canister wrapped with insulation near the firewall). The other tube/hoses that are usually cold, aren’t but the ones that are usually hot, are hot.
History. I bought the truck 6 mo ago and the air blows super cold but when the fan slows to maintain temp, it won’t speed up when the fan is turned up. I can hear the fan blowing but nothing comes out. The previous mention tubes at the dryer has thick amount of ice on it. Once the compressor is turned off, it will continue to blow real cold air until the ice melts and the fan slowly returns to high speed and the air returns to ambient.
I also have a low coolant light that only sets upon start. I have replaced both the reservoir tank as well as the connector. I also replaced the automatic control switches when i bought it due to partial display of numbers. The reservoir always had fluid. Low coolant light still comes on.
I’m wondering if the system needs to be evacuated and recharged?? Is there an orifice that could be clogged? The compressor appears to be working enough to form ice.
Jul 2, 2019 at 10:33 PM
