Review on 🚴 System Mounted Cycling Pressure Switch for Four Seasons 20922 by Nick Shirodkar

I used this on my 1998 Ram 1500. I think it doesn't matter what engine you have as long as you have air conditioning. I had an issue where the A/C clutch wouldn't stay on (it would turn on and off in a split second). That means two things: you either don't have enough pressure in your system or you have too much of it. Tests on my old sensor showed it was dead and needed replacing. Luckily, this gauge has a threaded shredder valve (much like a bike tire) so you don't have to bleed the entire system. Has been working without problems for 4 months now.