Blower will not come on on 93 s10.I ran a wire from battery to the blower and it works.I used a test light and no power to blower, or fan switch in dash. By the way, I changed the resistor and relay.

50

Asked by Dec 21, 2014 at 11:34 AM about the 1993 Chevrolet S-10 2 Dr STD Standard Cab SB

Question type: Maintenance & Repair

All fuses are good. Heat works.

9 Answers

70

If no power to motor n fuses good to blower I would think the wire is burnt somewhere

1 out of 1 people think this is helpful.
59,115

Do any of the fan speeds work? There is a separate, usually 30 AMP, fuse for high speed only. It's either in the engine compartment or under the dash. HTH. -Jim

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50

None of the fan speeds work.

2 out of 2 people think this is helpful.
70

Are you sure there is no power going to the blower switch

1 out of 1 people think this is helpful.
50

Pretty sure, unplugged it and put test to it.

1 out of 1 people think this is helpful.
50

I will try again when I get home. Thanks

1 out of 1 people think this is helpful.
59,115

Check for power, with the ignition on, at the relay. You should have power at one of the terminals. HTH. -Jim

50

Jim I have power at the relay on plug, red wire only. No power to resistor and no power to purple wire that plugs into blower motor. Thanks again. Chris

1 out of 1 people think this is helpful.
59,115

I'll pull out my wiring diagrams for my '03 S-10 and see if we can't see what's going on. I'm sure the circuit is similar. -Jim

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