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Old 08-08-2011, 08:29 PM
trmorissette07 trmorissette07 is offline
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Join Date: May 2011
Location: South Carolina
Age: 27
Posts: 11
Gender: Male
Vehicle: 2004 Dodge Ram
Trim Level: SLT
Color: Blue
Engine: 2003-2008 345ci (5.7L) Hemi V8 345hp 375lb/ft
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just about all AC systems that run 134a should be the same if you can find a Temperature Pressure Chart (TP Chart) take your ambient temp for 134a add 30 degrees and look at your PSIG that should be your high side pressure. as far as your low side goes 30-40 is a good pressure. monitor what they are at when your engine is at a higher RPM also, have you tried cleaning your condenser coil, you can clean it with a hose and it can make a surprising difference in how your ac system performs.
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