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| changill Member Since: 13 Dec 2008 Location: North West - Preston/Lancaster Posts: 27   
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Never heard of an fpr hissing. Do you have an associated. Leak?
Is the hissing from the fpr or could it be from the exhaust manifold? Only Alcohol Can Save me Now Nanocom Available in the North West |
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20th May 2012 9:02am |
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| wslr Member Since: 18 Jul 2010 Location: Wellington, Somerset Posts: 581
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I wonder if it is just air in the fuel being circulated around the head area?
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20th May 2012 9:26am |
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| big steve Member Since: 24 Dec 2009 Location: hertfordshire Posts: 2456 
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honestly it sounds like a air leak and thats without the engine running
yes the exhaust manifold is blowing but as said the engine is not running when you can hear the noise is it common for the manifold studs to snap without it being tuned as the very front 2 were allready sheared off and the manifold was out by about 5 mm steve 2015 2.2 tdci hardtop xs 3.2 conversion DONE 238bhp and 707nm torque and thats just the start ;-P hybrid turbo in build -done ready to fit ashcroft atb in transfer box 6 speed auto in build |
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20th May 2012 1:06pm |
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| wslr Member Since: 18 Jul 2010 Location: Wellington, Somerset Posts: 581
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I still think it is the sound of air in the fuel running around the FPR/Head/Cooler...
Take a closer look by running a purge cycle by pressing the throttle down 5 times with ignition on. Then try to track it down more closely. The fuel pressure is (or should be) at 4 bar so if there was a leak of any type, it would involve diesel leaking. |
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20th May 2012 6:55pm |
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