Hello there, I'm new here.
We (together with my father) have 77 Trans Am 6,6.
Everything works great, but now, in the fall, when I need to use the heater fan, I notice problems with charging, so I have a few questions.
Alternator charges alright until I switch on the heater fan (climate fan, inside fan, or what it is called).
It's not connected correctly, so the fan works only in the highest mode.
At that moment, the alternator is not giving enough amps, and the battery is not being charged.
It draws power from the battery so much that it won't start.
I have a 72ah battery installed.
I measured the fan amp draw with my cheapo multimeter, which showed 12amps while the fan ran at 3/4 speed and cables from the multimeter started to be hot, so the fan draw is, i suppose, about 15 amps.
I measured the draw lights, which were about 12 amps. My alternator has a written output of about 37 amps.
Is my alternator weak, so it's not powerful enough to charge when everything is on? Or is something wrong with the fan that it draws so much amps?
Or is the problem something completely different?
Thanks for the help.
We (together with my father) have 77 Trans Am 6,6.
Everything works great, but now, in the fall, when I need to use the heater fan, I notice problems with charging, so I have a few questions.
Alternator charges alright until I switch on the heater fan (climate fan, inside fan, or what it is called).
It's not connected correctly, so the fan works only in the highest mode.
At that moment, the alternator is not giving enough amps, and the battery is not being charged.
It draws power from the battery so much that it won't start.
I have a 72ah battery installed.
I measured the fan amp draw with my cheapo multimeter, which showed 12amps while the fan ran at 3/4 speed and cables from the multimeter started to be hot, so the fan draw is, i suppose, about 15 amps.
I measured the draw lights, which were about 12 amps. My alternator has a written output of about 37 amps.
Is my alternator weak, so it's not powerful enough to charge when everything is on? Or is something wrong with the fan that it draws so much amps?
Or is the problem something completely different?
Thanks for the help.