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Old 02-27-2018, 09:28 PM   #1
68350
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Join Date: Jan 2002
Location: Williston, ND
Posts: 2,999
Heater/A.C. and alternator wiring help

Ok this is for a 68 c10 with factory air. I have power at the fuse box for the heater 25 amp fuse. However with the key on the brown wire going to the fan switch doesn't have power. Does this mean the brown wire has a break somewhere? My fan doesn't work at any speed. Also my alternator wiring has 4 wires, white-blue-red-black. My other 68 has the same wires with the black hooked up. My 72 has no black wire to alternator. On the 68 in question the black wire isn't hooked up to anything on the alternator. Do I need to hook it up or is it ok without?
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68 Chevy CST/10, 50th Anniversary, 327/th400, 373 posi, buckets
68 GMC Shortbox Stepside, 402/th400, Tilt, Tach, Bucket Seats, 3.08 Positraction
69 Chevy Camaro SS, 383, 4 speed, positraction
70 Chevy El Camino SS396, Triple Black, 454/th400, Tach
70 Chevy Shortbox Stepside 4x4, 350/th350, Tilt, Tach, Cab Lights, Bumper Guards, Tow Hooks
70 Chevy 3/4 Longbox, 350/auto, 70k, SURVIVOR
71 Chevy Blazer, CST, 350/auto
71 GMC Sierra K2500, 454, 4 speed, 4.10 posi, 37s
71 Custom/30, Open Road, 350/th400, tilt
72 Chevy Shortbox Fleetside, 496 Stroker/th400, Tilt, Tach, Bucket Seats, 3.42 Posi
72 GMC Sierra Grande 2500. 427/th400, tilt, a/c, tool and stowage, buckets/console, 3.54 posi
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