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97 Buick LeSabre blower

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Old 03-16-2019, 04:55 PM
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If it'* a blower motor, typically they can typically start working again when they receive a sharp and direct whack (again, handle of sturdy screwdriver type of force). Also, the blower should be receiving full charging system voltage at highest speed. If it'* acting up, and you have full voltage at the blower motor connector, it'* the blower motor most likely.
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Old 03-16-2019, 10:49 PM
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The G101 ground at the right front of the engine compartment is where to start. Make sure it'* in good order and clean and tight. Here'* the

diagram. The blower is in the upper left part of the diagram.
Old 03-16-2019, 11:43 PM
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That diagram is for the auto climate control. Is that what you have or is yours the manual?
Old 03-17-2019, 03:48 AM
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Manual. And I don't read schematics.
Old 03-17-2019, 08:15 AM
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One thing I would do, is drop the hush panel on the passenger side(under the dash), to get to the blower motor...

As previously suggested, if the blower does not run when commanded on, tap the motor housing with the handle of a screwdriver to see if it will run....if it does, you need a motor....

Next, disconnect the two wire harness to the motor.....look at the harness connector and the motor connector, for burnt contacts or melted plastic......

If ok, attach a test light, not a dvm, to the harness connnector....ignition on(engine not running), turn HVAC system on, blower on low.....light should be dim....it should get progressively brighter as you increase speed, and should be on full brightness on Hi....If this does not happen, then the possibilities are the blower relay, the hi speed relay, or the resistor block......
Old 03-18-2019, 08:09 AM
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Thanks everyone for your help! Was just a bad blower motor. Easy fix.
Old 03-18-2019, 10:36 AM
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For those who may read your post......How did you determine it was the motor?
Old 03-18-2019, 11:12 AM
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rjolly87 and then TechII suggested that if I gave it a "whack" with the end of a screwdriver and it restarted, it was the motor. And it did and it was, so thanks guys!
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Old 03-26-2019, 12:33 AM
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Thanks for letting us know how it turned out!
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