I will try that John. Thank you very much.

Hi John. Thanks for the reply. I did hook up a manifold and had about 85 psi IIRC. When I start the engine and press the ac button and the clutch doesn't engage I jumped it and it was working fine with ice cold air. Low pressure was 35-40 psi and high was I think around 130-150psi but it's been a co...

I have a 1999 GMC Sonoma 2.2. I've attached the wiring diagram for your reference. Before I delve into it let me first state that my compressor clutch kicks in when jumping terminal and when jumping the relay terminal. I've also switched relays with the horn relay (it's good) and nothing My pressure...

Ok, so the hand wheels at the end of the hoses open and close along with depress the valve on the ac ports on the ac lines. That makes sense. Thanks Johnhere.

all these videos on Youtube show that after pulling vacuum and then closing the valves at the manifold to see if the system holds a vacuum. However, wouldn't this just close the manifold? I pulled vacuum and then closed the valve at the manifold on both high and low side and left it to sit for 2 day...

Remember vacuuming the system is not the same as evacuating the r134 in a system....if you had a leak or replaced a component of the system then you had to evacuate the refrigerant in your system....the reason for vacuuming the system is after you have repaired the system and it is sealed....you put...

Info on what type of vehicle would be helpful (year, make, model, etc). But typically the amounts don't change much unless with the old tube and fin condenser the vehicle used R12 and now it has R134 in it. It's a 1986 Toyota Corolla GTS. Yes it originally had r12 with the larger tube style condens...

Did the refrigerant can blow up and kill you? Maim you? Are there any strange, bad noises now, or funny pressures? If "NO" to all, then my guess is: OK. No..i'm still alive.... :) Everything seems fine except after putting in the r134 the high side pressure was at 240-250 and the lowside ...

Using typical manifold, and engine running with ac on. i opened both ports after I attached can of freon to the yellow line. Then after a minute I realised and shut off the high pressure side and charged normally through low side. Did I mess anything up? Thanks.

Your low side connector is not depressing the schrader valve. You are reading the cracking pressure of the valve on the low side. Cracking pressure? What do you mean? So i might have been just reading the pressure of the can of refrigerant? So when I ran a vacuum....i might have just been sucking o...