Automotive Air Conditioning Information Forum (Archives)

kennn on Sun July 08, 2012 11:33 AM

Year: 2002
Make: mazda
Model: 626
Engine Size: 2.0
Refrigerant Type: 134a
Ambient Temp: 84
Country of Origin: United States

2002 Mazda 626 2L 5 speed, Freon 134a

What pressure should the Auto ac be charged to for the above car. Thanks in advance

Cussboy on Sun July 08, 2012 12:17 PM

See http://napabeltshose.com/downloads/download_common.cfm?file=NapaCapacityGuide2-8-05.pdf&folder=news&view=napa_hc&location_id=1078

Refrigerant is best filled to capacity by weight, this link shows 28.5 ounces R134a.

Pressures will vary by outside temperature, engine speed, speed of cooling fans, etc. Good rule of thumb is about 30 psi low side, 250 psi high side, measured at about 1500 rpm. Others may now better numbers.

mk378 on Sun July 08, 2012 12:26 PM

Definitely fill by weight if it is a stock system you have a specification.