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2010 Prado V6 petrol engine whine

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  • 2010 Prado V6 petrol engine whine

    Hi fellow Prado owners I need your help.

    I gave my Prado a quick pressure wash under the bonnet a quick tidy up and shortly after it started making a whining noise from around 1500RPM - 2000RPM which you can clearly hear when driving or if you park and rev the engine it drives fine no issues there but sounds like it has a supercharger fitted.

    I had it serviced at Toyota and they changed the serperntine belt which made no difference. Then Toyota diagnosed it as a faulty power steering pump and charged me $1600.00 for a new pump to be fitted but when I picked it up no change to the sound.

    If anyone has experienced this type of problem I would really appreciate your help as all Toyota want to do is keep replacing parts which is not fixing the problem.

    Regards,
    Jiro

  • #2
    Check for debris that made its way into the alternator when you pressure washed. If you have access to a compressor give it a thorough blow down. When was the timing belt changed? Viscous clutch in your fan perhaps?
    Jim

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