Attention: TDR Forum Junkies 
I originally put this in the 2nd Gen forum, but it really applies to more than my truck, so I am reposting here.
On hot days it seems to take forever to cool my little quad cab, and then it isn't really all that cool, just tolerable. I have never done anything with the A/C in the almost 10 years I've had it, so I figured it was just getting low and needed some added. So I looked at a thread here about A/C and it said the low side should between about low 20's to about 40. I looked at a chart online that said between 70-80 degrees outside, it should swing from 16 to 29 psi. It was 75 outside when I checked it and I got about 18 to 38, which is what the chart says it should be when it is 80-90 outside. So my numbers seem pretty close to what they should be and if anything, a bit high. So now I'm thinking I may do more harm than good by adding refrigerant. What do you guys think? I'm leaving on vacation tonight with the family and want to be comfortable.
Roy
On hot days it seems to take forever to cool my little quad cab, and then it isn't really all that cool, just tolerable. I have never done anything with the A/C in the almost 10 years I've had it, so I figured it was just getting low and needed some added. So I looked at a thread here about A/C and it said the low side should between about low 20's to about 40. I looked at a chart online that said between 70-80 degrees outside, it should swing from 16 to 29 psi. It was 75 outside when I checked it and I got about 18 to 38, which is what the chart says it should be when it is 80-90 outside. So my numbers seem pretty close to what they should be and if anything, a bit high. So now I'm thinking I may do more harm than good by adding refrigerant. What do you guys think? I'm leaving on vacation tonight with the family and want to be comfortable.
Roy
