How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Ron Z. Your Own Question
Ron Z.
Ron Z., - GMC Tech -
Category: GM
Satisfied Customers: 19052
Experience:  18+yrs experience. State Inspector & GM Diagnostics/Repair
Type Your GM Question Here...
Ron Z. is online now
A new question is answered every 9 seconds

I have a 1997 gmc Jimmy that I am trying to charge with freeon...not

Customer Question

I have a 1997 gmc Jimmy that I am trying to charge with freeon...not sure which port to use as the one on the small metal tubing is to large and the one on the refrigerant cylinder is the right size.
JA: The mechanics have tons of experience in that area. Are those all of the "symptoms"?
Customer: yes
JA: Anything else I can tell the GM Mechanic before I connect you two?
Customer: no
JA: Got it. Let's get this figured out. I'm sending you to a secure page on JustAnswer so you can place the $5 fully refundable deposit now. While you're filling out that form, I'll tell the GM Mechanic about your situation and connect you two. You'll be on the road in no time.
Submitted: 1 year ago.
Category: GM
Expert:  Ron Z. replied 1 year ago.
Freon is added to the system via the Low Side Service Port. The Low Side Port is the smaller of the two ports. For an image location view, click here: my answer has helped you, please help me by leaving a rating or accepting my answer so I may be credited. Rating or accepting my answer does not cost you extra. It allows me to be credited for my work. Please rate or accept so I may be credited. You can ask follow-up questions after you rate or accept.
Customer: replied 1 year ago.
The hose that came with the freeon does not fit at that port it would fit on the port on the cylinder
so what do I do?
Expert:  Ron Z. replied 1 year ago.
This is an r134 system. It's the standard on all vehicles. The re-charge can will only fit on one port. Make sure you have located the ports correctly. Here is an image of the "high side" port - this is NOT the port to charge:
Customer: replied 1 year ago.
my port is larger than the coupler....
If it isn't on the cylinder then wear can it be?
Expert:  Ron Z. replied 1 year ago.
Unfortunately, I've been looking for a better location... but due to the year, I cannot. It's on the other A/C line. Start at the Condenser and work upwards until you run into it. It's located on the line that connects where the red arrow points to in this image: