# Vent fan doesn't work right

**URL:** <https://community.cartalk.com/t/vent-fan-doesnt-work-right/48344>\
**Category:** Maintenance/Repairs\
**Tags:** silhouette, oldsmobile, fans\
**Created:** [May 3, 2010, 9:38pm UTC](https://community.cartalk.com/t/vent-fan-doesnt-work-right/48344 "2010-05-03T21:38:34Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![huco169](https://avatars.discourse-cdn.com/v4/letter/h/9f8e36/32.png) [@huco169](https://community.cartalk.com/u/huco169)\
**Post date:** [May 3, 2010, 9:38pm UTC](https://community.cartalk.com/t/vent-fan-doesnt-work-right/48344/1 "2010-05-03T21:38:34Z")

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The vent fan just stopped blowing on speeds 1-3. It blows appropriately on 4-5. Is this a switch issue, or something else? How hard/expensive to fix?

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**Author:** ![missileman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/missileman/32/1366_2.png) [@missileman](https://community.cartalk.com/u/missileman)\
**Post date:** [May 3, 2010, 9:44pm UTC](https://community.cartalk.com/t/vent-fan-doesnt-work-right/48344/2 "2010-05-03T21:44:32Z")

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It’s a resistor issue. Fan speeds are controlled by resistors. You can probably do this repair yourself. The hardest part is finding the resistor pack. It’s usually in the heater ductwork. It’s an inexpensive part.

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**Author:** ![bennyandthejets](https://avatars.discourse-cdn.com/v4/letter/b/b487fb/32.png) [@bennyandthejets](https://community.cartalk.com/u/bennyandthejets)\
**Post date:** [May 3, 2010, 10:16pm UTC](https://community.cartalk.com/t/vent-fan-doesnt-work-right/48344/3 "2010-05-03T22:16:51Z")

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It’s usually screwed into the duct work, so the coils (resistors) are in the air stream, but will be accessable from inside the cabin. Pretty easy to replace, after you find it.

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**Author:** ![huco169](https://avatars.discourse-cdn.com/v4/letter/h/9f8e36/32.png) [@huco169](https://community.cartalk.com/u/huco169)\
**Post date:** [May 3, 2010, 11:24pm UTC](https://community.cartalk.com/t/vent-fan-doesnt-work-right/48344/4 "2010-05-03T23:24:15Z")

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Thanks for your help - you were right; easy to find, hard to remove, quick to replace.

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**Author:** ![huco169](https://avatars.discourse-cdn.com/v4/letter/h/9f8e36/32.png) [@huco169](https://community.cartalk.com/u/huco169)\
**Post date:** [May 3, 2010, 11:24pm UTC](https://community.cartalk.com/t/vent-fan-doesnt-work-right/48344/5 "2010-05-03T23:24:23Z")

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Thanks for your help - you were right; easy to find, hard to remove, quick to replace.