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Old 05-06-2022, 06:32 AM   #2 (permalink)
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First thought without too much thinking, yes. But maybe no.

When the voltage drops low it means the alternator can't supply enough power. This isn't the case when the a/c is running, but the a/c is not powered by the alternator. However if the fan and a/c consume roughly the same amount of power (mechanical via belt or electrical power) then the engine would/should be using the same amount of extra fuel to run. Since the a/c doesn't work it's impossible to test and be able to tell. Plus the a/c runs only part of the time so you would have to average the energy useage vs the constant draw from the fan.

Too many variables to say.
1973 Fiat 124 Special
1975 Honda Civic CVCC 4spd
1981 Kawasaki KZ750E
1981 Kawasaki KZ650 CSR
1983 Kawasaki KZ1100-A3
1986 Nissan 300zx Turbo 5 spd
1995 Chevy Astro RWD (current project)
1995 Mercury Tracer
2017 Kawasaki VersysX 300
2022 Corolla Hatchback 6MT
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