Your High side is going to vary quite a bit depending on how hot the air going through the condenser is. it wont go beyond what the high pressure switch is set for. The system will have stopped cooling by that time though. At 60deg F it will have a vapor pressure @ 57.5 PSIG. At 95 it will be 114 psig that doesnt include heat from compression dirty condensers and such. This chart will help you work on your A\C system successfully.
it also occurs to me that the auto store cans of 134 have a nice gauge to at least get you close so i wouldnt worry about over charging it. stick a thermometer in the vent while its charging so you can see that point when its at its coldest.
1997 Ford F-250HD CC SB Auto 4X4 3.55s 7.3 PSD Rif-Raf 6637, Stancor GPR, MBRP 3" DP to Stainless 4" straight exhaust. 95,000 original miles and counting. Michigan Chapter
Dang mike I feel your pain. Since I've owned my truck the AC would make you put a sweater on. This year nothin. I haven't even begun to trouble shoot it yet, just like Ohio, 80 one week, 50 the next...
What were you saying about bad luck?? Looks like both of ours got better! Glad you got it fixed, I've always said that if the cruise and ac don't work they are going to be fixed right away.
__________________ Glenn The Mule-96 2WD F250 EC/LB auto PSD
The Mare 97 dually cc,modified s366 turbo,stage II's,IC,studs,springs,rods,JW auto,4:10 LS,air bags,SD uvch,efuel,FS2500 bypass oil filter,HVHF IDM,IH WP,6.0 trans cooler & rad fan,MBRP 4",SD tensioner,AFE air filter,220 amp alt,38 gal rear tank & 33 gal aux bed tank,aux oil cooler,soundproofed,3 different TS chips,ac cold mod,XS batteries,riffraff hpop reservoir,aluminum radiator,HoneyBadgerJr hpop, water injection
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