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International Automotive Technicians Network

Automotive HVAC Forum

Professional automotive forum for discussion of heating, ventilation, and air conditioning maintenance and repairs. Includes discussion of refrigerants, refrigeration lubricants, system analysis and diagnostics, filtration, HVAC-specific tools & equipment, best practices, and more. This forum is for experienced automotive repair professionals only, membership required.

Continue to the description of our next automotive discussion forum, the Technical Discussion Forum.

Recent Automotive Discussions in the Automotive HVAC Forum

wiring diag. 93Toyo PU
05/22/2012 in the HVAC Forum
Hi All, I hate to do this but we need some help. I need a wiring diagram for the A/C on a 93 Toyota P/U. AD and Motor are incorrect. Thanks, Lee.
a/c scale and vaccum pump
05/19/2012 in the HVAC Forum
About to purchase a new a/c scale and vaccum pump, any tips or sugestions will be appreciated.I am going designite the new set for hybrids.
Leaks under vacuum but was holding freon?
05/19/2012 in the HVAC Forum
Hi all...just wanna see if I missed a basic "THEY ALL DO THAT" in ac theory. car is an 07 towncar, same fleet as always. complaint was not very cold. compressor was on and temp was a bit more than perfect but kinda cool(my vent guage grew feet...felt like...
05 Lincoln TC Limo - No AC Clutch w no codes?
05/18/2012 in the HVAC Forum
Hi all. This one is kinda out of my regular line...but a regular customer who wants to sell it off (fleet) so to get the drivability and service work we usually do, we took his AC complaint on the 35 foot stretch towncar. (Ghads) Original prob: No AC cool...
Seals, Gaskets
05/18/2012 in the HVAC Forum
[HVAC: 01 Isuzu Rodeo LS 3.2L] I need to know where I can find a listing on what type of seal / gasket is used on the low side hose connection between the line that goes to the evaporator & the hose going to the compressor ? Four Seasons doesn't give...