Hi there I am ready to loose it, I can not find the place where you top up the AC for my 97 Escort I look everywhere and I can not find it.
Your help would be greatly appreciated.
Thanks Marcus

The low-pressure service gauge port valve is located on the A/C manifold and tube. It's in the area of the Receiver- dryer on the passenger side of the firewall. It has 3 tubes coming together at the gauge port. Special couplings are required for both the high side and low side service gauge ports. You would need the R-134a Low Side Quick Disconnect 176-R0036 or equivelant. You might be able to get one at the auto supply. I'm sure you could get one at the dealer. It looks like it would only cost a dollar or two, There's not much to it.

Thank you soo much I appreciate it
MArcus

That's what makes it all worthwhile!