I am recharging my AC system. I've done this on some other cars so I am familar with the drill. I have vacummed the system and I am ready to add refrigerant but when I start the first bottle, I cannot get the AC pump to engage. Is there a trick to this? Do I need to override a pressure switch or something? My WSM manual does not cover that AC system System was working fine before.
The system has a safety that will not engage compressor until there is pressure in system Pull vacuum then add the amount of feron called for ..then run across to check pressures /temp Sent from my moto x4 using Tapatalk
I wasn't suggesting that ..I was saying fill as much as you can with system off then turn on to finish off and check pressures and temp After rereading op I realize you were answering the first post .. my bad and apologies Sent from my moto x4 using Tapatalk
Does they system really take 2.86 Lbs of 134a? Seems like a lot. Worried I'm ovrecharging. Image Unavailable, Please Login
So something is wrong. Blockage or overcharge I think. Gauges start out at 64/175, then the high side rises to 64/225. The fan kicks on and it drops back to 64/175. Thoughts? Where would you start? I've changed the Drier with the same result. I guess I could back off the charge some. I've put 38 OZ in but it calls for 45. No harm in doing that. After that I think I'll run a flush. Image Unavailable, Please Login Image Unavailable, Please Login
