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Bad89stang · 07-15-2003, 12:03 PM

Does being low on freon cause the A/C to pull more amperage/volts from the alternator?

My A/C works a little, but not that great. Whenever I turn on the A/C it draws big time from the electrical system. The higher the fan speed the lower the volts go. The car has been upgraded to a 130 amp alternator and it can't even keep up with the A/C.

Is this a blower motor problem or A/C related? I am leaning towards the blower motor since it does it when you turn the temp knob up. How can I test the blower motor? I have a digital voltmeter if that helps.

07-15-2003, 12:03 PM	#1
Bad89stang Registered Member Join Date: Aug 2001 Location: Ft. Worth, TX Posts: 456	A/C and blower motor question Does being low on freon cause the A/C to pull more amperage/volts from the alternator? My A/C works a little, but not that great. Whenever I turn on the A/C it draws big time from the electrical system. The higher the fan speed the lower the volts go. The car has been upgraded to a 130 amp alternator and it can't even keep up with the A/C. Is this a blower motor problem or A/C related? I am leaning towards the blower motor since it does it when you turn the temp knob up. How can I test the blower motor? I have a digital voltmeter if that helps.