Question about 2003 Nissan Pathfinder

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Loud squealing noise

I have 2003 pathfinder i get a loud squealing noise when i start it up it will last for about a minute or two then stops. Occasionally the squealing noise will start while im driving with the heat on when i turn the heat off the squealing stops.

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  • Anonymous Mar 14, 2014

    I have a 2003 Echo that's making a high pitched squeal when I start driving or stop. Sometimes the squealing can be heard for 5-10 seconds after I stop the car. When I turn off the engine, the noise immediately stops. I know the cv boot is torn. Is it possible that it's related to the cause of the squeal?

  • Anonymous Mar 17, 2014

    starting the car it makes a loud squealing noise

  • Anonymous Mar 19, 2014

    When accelerating hard I can hear a squealing noise that seems to be coming from the transmission. It also feels like it is slipping. If I back off the throttle a little it stops.

  • Anonymous Mar 21, 2014

    Loud squeaking noise when wheel is being turned to the right

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  • Nissan Master
  • 1,779 Answers

The noise is most likely the serpentine belt. Check it's condition and that of the belt tensioner. It sounds like the belt is slipping, causing the squealing noise u describe. As the belt warms up, it's getting a better 'grip' and the noise stops. Turning on the heat also turns on the a/c in newer cars, this added drag on the belt (one more component to turn, the a/c compressor) would explain why it happens when u turn on the heat. Is the belt original? If yes, it's time to change it, and check the belt tensioner to make sure it's doing it's job of keeping the belt snug on all the pulleys. Let me know how u make out.

Posted on Dec 13, 2008

  • thelevee
    thelevee Apr 05, 2012

    Belt was replaced last year , screech sounds like bearing and is intermittent. Did not start until ac serviced last week. Belt turns and appears to be in good condition.

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  • Nissan Master
  • 6,674 Answers

Probably a belt getting loose or worn. If alternator has a separate one than the rest, try just tightening it up. My guess is that it's probably all one belt with a tensioner pulley, which means you can't tighten, (spring tension already applied by tensioner) you have to change the belt, to get rid of noise, and if noise comes back in short time, think about changing tensioner.

Posted on Dec 13, 2008

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