My A/C is hit and miss these days. 2006 Mazda 3 Sport, 2.3l. It will blow nice and cool for 5 minutes and then hot and humid. I expect it's simply low. Are there any tests I should be doing to diagnose this problem. I just happened to have a discarded "can fill" A/C hose with a gauge on it that had the right fitting. It shows 110 lbs on my low side with the car shut off.
A friend is an HVAC guy. He's got the proper gauges, a big bottle of r134a and a vacuum pump. His gauges want other fitting than those on the Mazda though. His are made for a male thread. I will need adapters. I found this pair on Amazon.
https://www.amazon.com/dp/B07FNW8CLC...pd_rd_wg=EHpv3
Am I to assume that r134a fitting means that the Mazda would like these?
I don't think I am going to find these parts at Canadian Tire, Lordco, Napa or any of those places. Besides, we're having a heat wave on the island and all the r134a "can fill" kits where I thought I might find fittings are sold out!
Anyway, any help would be appreciated.
Monkey