03 National Tradewinds 7374 LTC dash AC
We recently purchased a 03 National Tradewinds LTC with only 39,000 miles and noticed the dash AC is not ver cold. I found the fittings and from the threads I was told it was the old R12 Freon? There ...
Forum Discussion
An 03 should be 134a. Ford or Chevy
High side is 16mm fitting, and the low side service port is a 13mm fitting for 134a and they are Q-disconnect type only.
low side R12 will always be 7/16-20 fitting
high side R12 can be 7/16-20 to 16 (1/4)or 3/8-20
R12 will not just connect to a 134a system. If must be adapted.
Post a picture of the two fitting. Or compare it to your other vehicles.
High side is 16mm fitting, and the low side service port is a 13mm fitting for 134a and they are Q-disconnect type only.
low side R12 will always be 7/16-20 fitting
high side R12 can be 7/16-20 to 16 (1/4)or 3/8-20
R12 will not just connect to a 134a system. If must be adapted.
Post a picture of the two fitting. Or compare it to your other vehicles.
