Quote:
Originally Posted by homemade87
I did my swap a couple years ago and decided to do a engine change to a ls2. In the process I had learned that a trinary switch will control the fans. I am wanting to put it in line on the high pressure side but I cant seem the find a fitting of any kind. Doc blocks is no longer around and my searched have not come up with anything. The factory 04 switch I got with the truck is a 10mx1.5 thread and I need to add a service port in line some how. What are some of you doing for this install. Do you know of a company that has what I need. Thanks
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The fitting on the '04 high pressure switch is M10 female threads, correct?
If so, there are adapters that will screw on an R12 service port (7/16 female flare) and adapt it to a male M10 switch port. Here is one example:
http://www.apairinc.com/dealer/detail.asp?part=461-3130
If your accumulator/drier has an unused port, the adapter may be all you need. Fittings are also available that will add an "R12 sized" service port inline that you can screw the adapter on and finally the switch.
I hope those parts are what you're looking for, but I'm not sure that everything will work the way you expect once it is wired up. The factory switch is just a high pressure switch (not a trinary switch) and doesn't behave exactly the way that you describe.
Good luck with your project!