squeaking sound on right in serpent belt area

2010 MERCURY MARINER
122,000 MILES • 1.2L • 4 CYL • 4WD • AUTOMATIC
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SHARONLB
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When I start it up , it makes a pretty loud squeaking sound around the serpent belt area. It gets quieter after it runs a bit. I sprayed some WD40 on the serpent belt and it stops right away. However, after it sits it will make the noise again when I start up.
Mar 4, 2018 at 12:43 PM
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ASEMASTER6371
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Good afternoon.

If the noise went away, the metal ribs are showing on the belt. I would replace the belt and the tension-er together.

Roy
Mar 4, 2018 at 1:01 PM
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WRENCHTECH
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Just change the belt. It is dried out.
Mar 4, 2018 at 1:01 PM
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