Okay, so i have a 98´durango 4*4 5.9 with dual ac.
Yesterday i did a top up with r134a, it still had about 2 bar/ 25 psi in it
but since it was fairly warm and the bottle held a nice 6 bar im rather convinced that i only had
vaporized 134 in there so it was basically empty.
I started filling and the compressor kicked in but i ended up with high suction pressure rather quickly.
- the compressor shut down and didnt want to kick in, it came back after ten minutes....
it seems like adding more refridgerant makes the compressor stop...weird, i do not have high pressure on the hp side. (switch cloosed)
- i have only got about half charge by wheight.
- Its only the rear ac unit that blows cold. ( but it bows really cold )
- both high and low pressure switches are closed with ac off.
- it cycles at 10s on/ 6s off.
What else except the pressure switches/ climate controls controls the compressor?
I also suspect that the front ac expansion valve is broken, thus no cooling at front or can this behaviour be
because of low charge?
- should i just dump the appropiate amount in there and se whats happen?
- How much overcharge can it stand?
It has never been empty or opened so i shouldnt have any air or moisture in it.
By the way refridgerant arent all that easy to come by in sweden so im hesitant to
just waste tha gas.