1990 Nissan Hardbody hot air

[sixputt]

Thanks again Tom. The humidity here in Ala is awful. Don't ever remember it being this humid but you got to remember, we had tons of rain this summer...

[sixputt]

I also thought about the vent doors leaking heat into the cab. One of the controls seems stuck I but I think I may have got it but need to check closer....

[sixputt]

Quote ::::
You still are thinking excessive oil? Where along the way if you've owned it so long could that happen?

Because when I put...

[sixputt]

Its still not working correct. This morning I drove it to get some coffee and the vent temp was right at 40 degree but the outside temps were only in...

[sixputt]

I see no way moisture got in this system being it has not been opened up in over 10 years. It has worked perfect since I installed the TX Valve and I...

[sixputt]

I put the clutch fan on today and also added the one 12 oz can of R12 to the truck. The site glass finally cleared up.

I watched my...

[sixputt]

Tom, I am not 100 % sure that the condenser is blocked. Using the infrared may not be the proper way to test. I do find it hard to believe it is stopped...

[sixputt]

Would I have to change the oil in system if I go with 134 ? I am all for doing this as R12 as become way to high in price. I have two cases of 134 I...

[sixputt]

Update. I took my infrared thermometer and shot it across the condenser taking my time at each area. I think maybe I found a blockage

...

[sixputt]

When it is blowing hot you can try misting the condenser with water and see if the pressure goes down along with the vent temp. If so that is another...

[sixputt]

I found one can of the R12 today from a friend who still works on cars and trucks. I give him $10 which was great

Now to find some...

[sixputt]

I might have caused some of the no cooling problem today when I connected my old gauges. It was leaking and I didn't see or hear it. I don't think I...

[sixputt]

I know this truck is old but I bought it new and it still runs great with well over 250,000 miles on it.

About 10 years ago the AC give...