2000 Mercury Marquis Blower motor

2000 MERCURY MARQUIS
120,000 MILES
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OLDMERC69
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Blower motor runs sometimes. Everything else works fine. Blower works fine on automatic or manual, then sometime either will not work or works for a while and then just quits. No power to the blower motor when it stops. EATC error codes 51 & 53
Sep 25, 2013 at 6:12 AM
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WRENCHTECH
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The next time it isn't working, test for power and ground at the motor and see which one is missing. If neither, the motor is bad.
Sep 25, 2013 at 6:31 AM
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OLDMERC69
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My first thought just because of age. Plugged in a new motor, and got nothing. There is no power at the plug when the thing fails to work.
Sep 25, 2013 at 6:40 AM
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WRENCHTECH
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How do you know there is no power? Did you test it?
Sep 25, 2013 at 7:26 AM