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Old 12-11-2012, 12:12 PM   #1 (permalink)
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Serpentine belt screeching

I believe my serpentine belt screeches for 1 second or so at start up in cold weather. It does not make a noise once started and does not make a screech at start up when warm or warmed up. I had a shop look at it and they said the belt is in good condition and the tension is fine.

Is there anything I can do to eliminate this noise at start up?

Thanks
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Old 12-11-2012, 02:08 PM   #2 (permalink)
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Check the starter. What year is your MDX?

http://www.mdxers.org/forums/73-2001...noise-wtf.html
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Old 12-11-2012, 03:09 PM   #3 (permalink)
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Phins - thanks - I'm going to check out the starter. Looks like maybe a DIY cleaning project.
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Old 12-11-2012, 03:19 PM   #4 (permalink)
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Forgot to note it's a 2005 with 75K miles
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Old 12-11-2012, 06:14 PM   #5 (permalink)
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I also suspect the starter. My 2005 did exactly this. I ended up replacing it about a year ago, if I remember correctly.
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Old 09-26-2013, 12:56 PM   #6 (permalink)
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OP here with an update. I replaced the serpentine belt myself and the noise is present at cold morning startup with both no belt on and the new belt. This seems to confirm that it's not a serpentine belt issue, but possibly the starter as you all said. I've attached a link below to the sound at startup - it is about halfway through the video and is the 1 second screech.

Can someone confirm this sounds like the starter issue referenced in this thread and if so, can you point me in the direction of a DIY guide on how to take out the starter and clean it myself?

Thanks for any input.

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Old 09-26-2013, 01:06 PM   #7 (permalink)
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Yes, it sounds like the starter. You can read more about this common problem in these two topics - there's a video of the noise in the first topic:

Shriek on startup
2004 MDX engine metal screeching at start
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Old 10-09-2013, 03:44 PM   #8 (permalink)
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OP here - it was the starter and problem is fixed. After considering DIY, decided to have it done for one hour of labor by my independent shop. Mechanic said the parts were sticking some prior to greasing. He did not grease it up as much as oliver202505 in the second thread above as he said the grease could get in to the engine (don't know enough about this to argue with it). Have now had a number of cold mornings here in the Chicago area and the noise is either not present or sometimes very slight - something I can live with for now without replacing the starter.

Thanks to this board for the help.
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Old 01-06-2014, 02:43 PM   #9 (permalink)
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Further update - fix is holding up in very cold weather

OP here - further update: after negative 11 degree temps in Chicago during the arctic blast this weekend, starter made only minor, short screeching starting this morning, no worse than during 20 degree temps. Fix seems to be holding up.
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