Weak A/C

When it is 80 or less it's not a problem. If I set the A/C to max cold, I use the lowest fan setting & still have to turn the temp set up a bit or get goose bumps.

Start getting close to 90 & particularly if it's been parked in the sun for a few hours. The A/C is taking forever to cool down & never really approaches the ice cold air you need here in Arizona.

Was thinking of flushing & redoing the cooling system to see if that helps. Anybody recommend a good cooling system additive for the hotter climates?

It sounds like the refrigerant is low in the A/C. You can get a recharge kit for about $25 complete with gauges. Follow the instructions. I had to "top off" my '00 Grand Caravan last summer. Actually it took almost the whole can, indicating that it was about 1/3 low. It is not too hard to do it yourself. If it turns out that low refrigerant is not the problem, you may have to take it to a A/C mechanic. You may want to get a digital temperature probe. It was recommended by a friend that does A/C repair. You can use it as a secondary measure when you are recharging the system. The air temp from my A/C was 54f before I started the recharge. When I started the recharge the temp on went down a couple of degrees before the pressure guage indicated full. I waited for a minute and the temp went down some more and the pressure gauge went down also. I kept adding a little at a time until the guage quit going inder the full mark (about 4 shots). The ending temp was 44f. According to my friend a perfectly working A/C should blow at about 38-40F.

It sounds like the refrigerant is low in the A/C. You can get a recharge kit for about $25 complete with gauges. Follow the instructions. I had to "top off" my '00 Grand Caravan last summer. Actually it took almost the whole can, indicating that it was about 1/3 low. It is not too hard to do it yourself. If it turns out that low refrigerant is not the problem, you may have to take it to a A/C mechanic. You may want to get a digital temperature probe. It was recommended by a friend that does A/C repair. You can use it as a secondary measure when you are recharging the system. The air temp from my A/C was 54f before I started the recharge. When I started the recharge the temp on went down a couple of degrees before the pressure guage indicated full. I waited for a minute and the temp went down some more and the pressure gauge went down also. I kept adding a little at a time until the guage quit going inder the full mark (about 4 shots). The ending temp was 44f. According to my friend a perfectly working A/C should blow at about 38-40F.

Where did you get yours & what was the brand. Have had a bad experince with one that I got from autozone. Took it back twice before I got one that worked marginally well. digital temperature probe also???

Thanks

Got mine from Walmart. Worked on the first try. I still have the guage set that came with it, it is re-useable on any standard recharge can.
I used a indoor/outdoor thermometer, the kind with a probe that goes outside.
I put the probe in the A/C vent and ran the A/C for about 10 min, until the system was as cold as it was going to get. Then I started adding the refrigerant, slowly until the pressure guage came up to 35psi(?can't remember for sure, may have been 45psi). Then I stopped adding and watched the temp guage for results. Added some more (b/c the pressure went back down some) etc..