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Wow...that's a new one. About the only thing that could cause this I'd think is some sort of short that when the backup lights come on (only when you're in reverse) or when the shifter itself is in this position, this somehow causes or fixes some sort of a short. You don't mention whether this is a column shift or console shift car, but I'll bet it's a column shifter? Assuming it's a column shifter, I'd probably be trying to get into the dash behind the speedometer and see if there's some wire that got rubbed raw from the sliding up and down action of the column shifter. If it's a console shifter, I really am not sure what it could be, but I'd get inside that console and see if there's something wrong with the wires.

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โˆ™ 2006-02-17 18:23:51
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Q: Why would the heat blower motor only work when the car is in reverse on a 1991 Lumina?
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