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Bad Pulley?

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    #1

    Bad Pulley?

    Hey all, I'm having this whining/whistle come from under the hood all the time and I'm guessing its a pully but I'm not sure which one or if its a tensioner or what. I was wondering if our CB's have a history of certain pullies going bad and how to diagnose the problem. Thanks

    Chris





    Joey GT-R Edit....The spelling error was bugging the hell out of me.
    Last edited by Joey GT-R; 04-15-2013, 08:03 PM.
    Tags: None
    #2
    No, not really. Why don't you do some investigating under the hood. It would be a lot more effective than asking us what could be wrong with it.
    My Members' Ride Thread - It's a marathon build, not a sprint. But keep me honest on the update frequency!

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      #3
      Get a can of spray grease. Make sure it has the extension part you stab into the nozzle (like a wd-40 can) and while running, spray just a little tiny bit behind each pulley. When it stops, you've found your issue. If it's a pulley issue.

      Doesn't have to be grease but I use grease cause it'll last longer then pb blaster and all that jazz until you can get it replaced.

      If it's the actual belt itself, make sure all the pulleys are aligned correctly.
      98' Mustang 3V Swap
      11' VW CC R36

      Comment

        #4
        Does this noise always happen or just during certain weather or engine speeds? how long has the noise been there? Was any work done on the car when or shortly before the noise started? We need more info to help you. Start by just making sure the accessory belts are tensioned properly. If the noise persists, try to isolate which pulleys it could be remove one accessory belt at a time. It would indicate if it is a belt/pulley problem and guide you towards the problem one.

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          #5
          Originally posted by STOCKa6 View Post
          Does this noise always happen or just during certain weather or engine speeds? how long has the noise been there? Was any work done on the car when or shortly before the noise started? We need more info to help you. Start by just making sure the accessory belts are tensioned properly. If the noise persists, try to isolate which pulleys it could be remove one accessory belt at a time. It would indicate if it is a belt/pulley problem and guide you towards the problem one.
          It's all the time, and gets higher in pitch at higher speeds. The noise has been there since I purchased the car 3 weeks ago. The only work I've noticed is a rebuild head. I've also replaced the valve gaskets and adjusted the valves cause she was rather noisy. Thanks for the fast replies guys. Jarrett, I asked how to diagnose the problem, poking around wont be beneficial if I don't know what to poke at and how my friend.

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            #6
            If you can get your hands on a mechanics stethoscope this will come in handy. If its a pully noise this will pinpoint it for sure.

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              #7
              Bad water pump will whine.
              Bad or over charging alternator will whine.
              Low fluid, leaking, or bad powersteering will whine.

              02 Crv
              02 silverado Ex cab Z71, 2011 TRD 17" wheels, 245/80/17, ls1 cam, AFE intake, 3" catback, tuned by Larry at LSXperformance&pcm tuning driven daily.
              92 Acura Legend colbalt blue LS Coupe, custom intake, custom vibrant 2.5 cat back, led cluster and high beams, 2016 Coyote GT 18x8 wheels 235/40/18.
              Coming Soon Tein TSX coilovers.

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                #8
                ^^^^ what SOHC-FTW said, more than likely a bad powersteering pump or low powersteering fluid. Sit in the car with it running (not moving) and move the steering wheel left and right. Does it whine when this is happening?
                "Wise people treasure knowledge, but the babbling of a fool invites disaster" Proverbs 10:14

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                  #9
                  Originally posted by cpl hero View Post
                  ^^^^ what SOHC-FTW said, more than likely a bad powersteering pump or low powersteering fluid. Sit in the car with it running (not moving) and move the steering wheel left and right. Does it whine when this is happening?
                  I checked the ps pump and fluid, it's not that from what I can tell. And it's more of a high pitch, almost whistle I'm hearing. Like wind noise, but I can hear it when I idle. I'm gonna squirt some wd40 in the pullies to see which one it is as stated before... Hope it's not the crank.

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