Question about 2005 Volvo S40

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Loud squeak when engine is on.

When the engine is running there is a very loud squeak coming from under the hood. I've been unable to isolate where it's coming from, but suspect that it may be from the fan. The car is a 2005 Volvo S40, automatic transmission, without turbo. Any ideas or suggestions?

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  • jkatsanis Nov 20, 2008

    I'm not sure. It's difficult to see and the belt appears (from what I can tell) seems to be tight, though it very well could be a loose belt?. It usually starts after the engine has warmed up and remains until the engine is turned off. It doesn't sound any differant, whether the engine is idling or reved up. It's just consistant, high pitched and loud.

  • jkatsanis Nov 20, 2008

    Thank you. I'll do that. I really love this car and have been very concerned about this noise. Thanks again.

  • fragile700 Dec 12, 2008

    Loud squeak when engine is on

  • amy_carney May 02, 2009

    I'm having the same issue with my 05 S40. Mine is definatly a howel that seems to be coming from the front of the engine, just below the alternator. It seems to go away when I rev the engine but if I'm cruising or ideling it is very loud and embarissing. When I shut the car off the sound slowly comes to a stop. Any suggestions?



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Is it a squeak or a howell thats the real question here because it could be the oil trap which is about $140 and is attached to the bottom of the filter housing not to hard to do if you have worked on this type of car befor. And has the car died yet.

Posted on Jan 17, 2009

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Are you sure it is not a belt slipping/squeaking?

Posted on Nov 20, 2008

  • lesterallen Nov 20, 2008

    OK, that sounds more like a pully, like on your alternator. I would have a competent tech take a look at it. Nice car, you want to take care of it.



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