2001 Chevy Astro Blower fan speed

2001 CHEVROLET ASTRO
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SUNLAKES
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Electrical problem
2001 Chevy Astro 6 cyl All Wheel Drive Automatic

Fan does not work in high. Replaced resistor, replaced vacuum hose, checked fuse; have voltage at fuse box and plug to blower fan.
Jun 27, 2009 at 2:54 PM
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BUDDYCRAIGG
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he high speed is controled by a relay.
Jun 29, 2009 at 4:43 PM
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SUNLAKES
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Where is the relay located? Is the relay and resistor the same part or is there 2 relays? I changed the resistor inside the heater core cowling (passenger side of engine compartment behind windshield washer and overflow tanks).
Jul 2, 2009 at 7:33 PM
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BUDDYCRAIGG
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I'm sorry i was wrong, your van has a resistor / relay as an assembly.

the low speeds go through a 20 amp fuse.
but the high speed goes through a different 30 amp fuse. that is under the hood.

check that. and let me know.
Jul 2, 2009 at 9:00 PM