Blower motor speed - Chevelle Tech
Electrical & Wiring Troubleshooting electrical problems.

 
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post #1 of 2 (permalink) Old Oct 18th, 03, 4:13 PM Thread Starter
 
Join Date: Mar 2003
Location: New Jersey
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Can anyone offer me some advice on my 72SS in regard to the Blower HI Speed. I replaced the switch and the relay and it still will does nothing when I put the switch in the HI position. Any Help is appreciated.
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post #2 of 2 (permalink) Old Oct 18th, 03, 6:15 PM
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Location: Chandler, AZ, USA
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Is the fuse good? Follow the orange wire from the relay there will be a fuse holder. If the fuse is good check for voltage on the orange wire, gets power from the horn relay, and on the dark blue wire, gets power from the speed switch when high is selected, also check for continuity to ground on the small 16 ga black wire. If the relay gets power on the orange wire, has power applied to the relay coil on the dk blue wire and the relay is grounded via the black wire you should get power out to the blower on the purple wire.

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