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Ok i was thinking about getting some 05 fans, but i have been reading up on the power drains that some people have had. I was wondering if Allen or someone else has made any modifications to the wiring harness so that it does not drain the battery. Any input would be great on how to combat the power drain with a stock 105amp alternator. thanks.
They may pull a heavier load but my Fbody light duty alternator keeps up with the fan's drain.
Change to 145A.
well if i put them on is it going to be a noticable drain and will it hinder like gas mileage and performance?
It should improve your performance. My fans run on HIGH when the A/C is on and I sit in stop and go traffic for 30-45 minutes every afternoon M-F and the battery does not lose but .3 volts by my radio's digital voltmeter.
hey redheart, do u have a 105amp alternator too also is there a way to run the fans on low with the a/c on or does one always have to run high. O yeah if i do get the harness from nelson, do i have to put it together myself or is it already assembled.
Yeah, my Pioneer radio has a digital voltmeter display built into it. It's nice.
The Nelson harness will turn the fans on low when the A/C kicks on. I wired my self-dreamed-up harness to run the fans on high with the A/C.
The Nelson harness is already assembled nice and pretty. Both fans run at low speed with the A/C on unless the engine gets too hot and then the PCM commands High fans.
Do you have a Nelson tune already or own HPTuner software so that you can enable the fans in the PCM?
no im thinking about getting one cause i know i have to turn pin 42 on and so forth. so use2bfo it still drained the power even though the two fans turned on low?
I think Use2's problem was he got a Monday harness. Should have bought one built on Wednesday or Thursday. :laugh:
haha didnt the old nelson harness make the a single fan come on high when he a/c turned on, or is this the same one?