A Squeaky Situation

Discussion in 'The Coffee Shop ~ Chit Chat' started by DualInduction2, Feb 15, 2010.

  1. DualInduction2

    DualInduction2 New Member

    I need some help. I'm the proud owner of a black, 2000 Silverado Z71, with the 5.3L, auto trans, push button 4x4, 4 door cab and tons of other extras. My issue: a squeak/squeal I cannot resolve. I've replaced the serpentine 3 times. The direct drive twice. Refurbed the alt. Replaced an idler pully. Replaced the power steering pump. I'm at a loss. Any ideas?
  2. DualInduction2

    DualInduction2 New Member

    And just in case you're wondering, I do have some aftermarket performance parts. But nothing that should be causing the squeak. Just a cold air intake, mass air flow sensor, throttle body spacer and programmer. My next step is to replace the stock single fan with an electric twin. But that's next month.

    Back to my original question, any input will be appreciated. This squeak is about to drive me nuts.
  3. Stealth

    Stealth Epic Member 5+ Years 1000 Posts

    When did this start happening? And does it happen when you are driving, just sitting idle, maybe going up or down hills?
  4. DualInduction2

    DualInduction2 New Member

    Typically, the squeak will not start until about 5 minutes after a cold start during idle. Then, it will be intermittent for several more minutes during idle and while moving. After that and the truck is at a relatively stable temp, it will be constant during idle and moving. It audibly increases in speed and decibels as the truck accelerates but will stop climbing and hold at a constant speed and loudness after a certain point. I have not noticed any difference in it during terrain. Nor have I noticed a difference in it during periods of wet or dry weather.
  5. Badbrad469

    Badbrad469 Rockstar 100 Posts

    have you checked out the a/c belt? i had little squeak from it. not too hard to replace, two people definitely help.
  6. DualInduction2

    DualInduction2 New Member

    Yep, couldn't find a squeak from it, but I replaced it anyway.
  7. DualInduction2

    DualInduction2 New Member

    I even checked the tensioner, just in case. But, it specs out fine.
  8. KidHauler

    KidHauler Epic Member 5+ Years 500 Posts

    Check the length of your air intake system for trash - piece of paper, plastic wrapper, etc.
    I thought it sounded silly too, until I found the kmart bag underneath my furnace!

    Good luck,
  9. DualInduction2

    DualInduction2 New Member

    Good idea, but no trash, that I could find.
  10. Muddflap

    Muddflap Member

    Hey just curious ,in case i didnt read your post correctly, did you replace all the puller wheels that touch the serpentine belt? maybe it is one of them. I have a squeak when I first start my truck usually in the morning. I have a 2006 Trailblazer with about 40k on it. get some spray and spray one thing at a time. when it goes away you will know what it is. I know it sounds stupid but it worked for me a couple of times in the past.

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