Search results for query: *

EPR valve was to throttle the flow of refrigerant to keep the evaporator from freezing up. these systems did not cycle the compressor but ran all the time. To my knowledge nobody makes an EPR that is compatible with 134A refrigerant.

It will have to have a switch installed to cycle the compressor. Having said that, feel the hoses the high side should be hot the low side should be cold. I sounds like you might have a restriction, or blockage in one of the hoses. Which you can usually find were by feeling the hoses, if the...

I struggled with a engine getting hot a few months ago, mild 512 in a 4x4 dodge truck that originally had a 400 big block in it. I am a retired technician and former automotive instructor. After a lot of work, I figured out the root cause was lack of coolant flow, the two big culprits were an...

If you are running the factory style compressor and R-134 freon, there is a EPR valve in the compressor, it was used to control the flow of the freon, it is not compatible with R-134. You have to convert the system to be a cycling type, like all new cars since R-134 was introduced. You may know...

It has been a while since I messed with one, but you have several issues. First the original hoses on your car will not hold 134A the refrigerant is thinner they require barrier hoses. Having said that it is a minimal leak you may have to top off the car every other year or so. The main issue...