Question about 2000 Oldsmobile Silhouette

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Speed fan control is not working on 4 and 5

My ac/hc controlspeedis only work on 4 and 5. please tellme what part it goes bad?thank

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Had same problem on my 2000 Silhouette. The heater blower resistor block was burned out for fan speeds 1-3. This can be confirmed by disconnecting connector and using a checking continuity with VOM. The block is located behind the blower housing (just above the passenger's feet). Had to drop the blower motor to ease access. Resistor block is held in with three small screws, the back one can be a challenge - a small stubby or flex- shaft driver helps. Resistor block cost about $55 at dealer (more robust resistor pack than OEM). Haynes manual describes R&R fairly well.

Posted on Oct 04, 2009

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The part that is bad is the control head the whole panel with the speed and temp selector

Posted on Dec 22, 2008

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When the Blower Motor Resistor (controls blower speeds) goes bad, the blower motor works only on HIGH SPEED. REPLACE IT.
BLOWER MOTOR RESISTOR Removal & Installation
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2 Answers

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You can test the blower motor by connecting direct power from a source like the cigarette lighter if you are handy.
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1 Answer

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2 Answers

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1 Answer

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