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Hissing noise

 
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Old 08 May 2011, 04:21 pm
Fresh Cruiser
 
Join Date: Feb 2011
Location: Buxton, UK
Posts: 4
Default Hissing noise

Hi all,
I am getting a hissing noise as if air is being sucked in or released from somewhere near the radiator filler cap/ left hand side of cylinder head.
this happens whenever I switch the engine off and lasts for about 10 seconds.
The radiator is full and the top hose is pressurised when the engine is running.
I cannot see any splits in any hoses anywhere

Any ideas anyone?

Thanks in advance
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Old 08 May 2011, 04:32 pm
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Join Date: Sep 2010
Posts: 150
Default Re: Hissing noise

Check for vacuum leak near the solenoids.
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Old 08 May 2011, 08:38 pm
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Join Date: Nov 2007
Location: Mooresville, NC
Posts: 5,324
Default Re: Hissing noise

Jona, these are the solenoids tryingbe mentioned, they may be mounted in another place on your PT but they are one place to look for vacuum leaks. They are numbered 1, 3, 2....

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Old 09 May 2011, 01:46 pm
Fresh Cruiser
 
Join Date: Feb 2011
Location: Buxton, UK
Posts: 4
Default Re: Hissing noise

Thanks for the reply guys, however mine is not a turbo model therefore I don't think it has the solenoids as described.
Thanks for taking the time though.
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