Does my 1996 3500 Ram Van use R-134a?
It is one of those with the dual AC units, and the AC stopped blowing cold air. The compressor does come on, but the air never gets cold.
There is an R-134a looking fitting on the hose next to the oil filler cap, but the R-134a gauge/hose from the kit I bought does not fit it (the fitting is too big for the hose). The fitting on the other AC hose looks like a tire valve.
This is my work van, and I am in Dallas....mid to upper 90s, nice with no A/C. I was hoping to try adding freon before I to take it to someone and they told me I needed to spend $1000!
I do have a 15 year old can of R-12 on the shelf, so I could always buy a set of real gauges....help and advice appreciated.
There is an R-134a looking fitting on the hose next to the oil filler cap, but the R-134a gauge/hose from the kit I bought does not fit it (the fitting is too big for the hose). The fitting on the other AC hose looks like a tire valve.
This is my work van, and I am in Dallas....mid to upper 90s, nice with no A/C. I was hoping to try adding freon before I to take it to someone and they told me I needed to spend $1000!
I do have a 15 year old can of R-12 on the shelf, so I could always buy a set of real gauges....help and advice appreciated.
Yes your van uses the 134-a freon. The fitting it would not fit is the high pressure line. There is another fitting somewhere on the bigger diameter of the two lines that will be the low pressure fitting and you will hook the hose connector of the freon can to it. On my 97 both fittings are up front on the passenger side of the radiator area. I am not sure where to find the low pressure on the dual unit AC systems.
Thanx! I will look again. It has been 15 years since I have had to look into AC issues (hence the can of R-12 on the shelf). You confirmed my recollection that the small hose was the high pressure side and the bigger hose was the low pressure side.



