When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
My 93 has an April build date and r134a. Is there an obvious way to tell if it's factory or an aftermarket conversion? The system works ok, holds pressure, but doesn't cool very well at idle. Also the air temp at the vent is 10-15°warmer once the truck is at operating temp.
Is the coolant system designed so that coolant flows continuously through the heater core? If I reroute it so that hot coolant isn't reaching the core, would that help keep the cabin cooler. I live in new orleans so this is a VITAL question.
if it has the underhood tags, it will say what it came with or it should have a conversion sticker on it.
an april 93 build date SHOULD have had R-12 in it when new.
if the AC is working properly but still not blowing cold, i would bet one of the blend doors is sticking partially open when it should be closed. .