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Alternator Belt Squeal on Engine Start-Up

Discussion in '1st Gen. Tacomas' started by JoePoulson, Jan 21, 2012.

  1. Jan 21, 2012 at 6:39 PM
    #1
    JoePoulson

    JoePoulson [OP] Loves Tacos

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    Joe
    Lake Mary, FL
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    Black 2012 TRD Sport DCLB 4x4
    De-mud flapped, tinted, de-badged, WeatherTech FloorLinered, 400W anytimed, Salex Organized
    I had all of my belts replaced the first week of December, 2011. They were squealing like crazy, and were beyond ready for replacement. The new belts have been great ever since, but lately, my alternator belt is squealing when I start my cold engine. It's only for a second, unless my A/C is on, then it's for 2-3 seconds.

    I assume that belt needs to be tightened, but I have no clue how to do it. I've searched high and low for specific instructions on how to do this on my Taco (2004 PreRunner, 3.6L V6), but have come up empty. Lots and lots of belt threads here and elsewhere, but none give how-to's for my Taco. I can't even find anything in my service manual.

    If anyone can point me in the right direction for this, I would appreciate it. I've learned so much about my truck since I bought it last November (I replaced my brakes, all fluids, new stereo, etc.), but I'm still very green when it comes to vehicles. I had a local mechanic replace my belts because it would have taken me a week.

    Thanks!
     
  2. Jan 21, 2012 at 6:47 PM
    #2
    isu2014

    isu2014 RAT Products

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    View the build. Too much to list.
    The service manual tells you how to remove it so it's the opposite of this link. http://www.ncttora.com/fsm/2003/Repair_Manual/03tacoma/ch2rzfe3/gene/remo.pdf Obviously all you need to do is tighten the adjustment bolt. Google how to tell if the belt is tight, I normally just tighten mine till they don't give hardly at all when pushed in the center. But this is completely inaccurate.
     
  3. Jan 22, 2012 at 6:56 AM
    #3
    JoePoulson

    JoePoulson [OP] Loves Tacos

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    Lake Mary, FL
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    Black 2012 TRD Sport DCLB 4x4
    De-mud flapped, tinted, de-badged, WeatherTech FloorLinered, 400W anytimed, Salex Organized
    That's perfect! I saw bits and pieces around the web, but not such a simple explanation. It sounds silly, I know, but the last thing I wanted to do was to mess anything up. Also, with the adjusting lock bolt and adjusting bolt being underneath my alternator, I just wasn't seeing them.

    I tightened the belt a bit this morning, and no squeal! I will continue to test and monitor, but I believe I am all set.

    Thank you!
     
  4. Jan 22, 2012 at 3:36 PM
    #4
    misterdmac

    misterdmac Well-Known Member

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    Doostin
    In or around the truck
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    Sometimes if tightening doesn't get all the noise out, rubbing some chalk on the inner belt face can help. Has worked for me on a couple of old cars and both my Toyotas. But you should have about 1/4 inches play either direction in the belts, no more than 1/2 inch.
     
  5. Jan 22, 2012 at 3:39 PM
    #5
    TacoMX

    TacoMX TW's Official anti body-lift pundit

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    stock.....for now...
    I've used ivory soap before...works great until it washes off if it rains.
     
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