× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
Re: RAM 3500, 5.9 L6, 2006 a/c problems
Posted to HVAC Forum on 8/14/2015

Heavy duty trucks kick the fan on at 300 psi. Have since the introduction of R134. And, recently, I had a truck in here that was at 325 and it was normal, I checked.

Guess that blows that theory. ......... Login to read more.