I'll have to check out the kickdown switch..

As for the aux fan, i hooked it up to a 12v power source and ran a multimeter in line to test the amps.. it pulled out right below 8 amps (7.8+) and their isn't much resistance when i spin it by hand... but something must be preventing it to turn on with the AC.. it should turn on right?

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'87 300D new to me
'85 300D Sold
'83 300cd Sold