mrwibble
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 posted on 18/7/09 at 11:27 AM |
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zetec hissing on shutoff
my 1.8 zetec hisses after its turned off...
for about 5 secs. worried it might be the pcv valve. any ideas?
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Danozeman
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| posted on 18/7/09 at 11:47 AM |
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Is it the actually from the engine?
Mine gargles a bit from the expansion tank when i first switch off.
Dan
Built the purple peril!! Let the modifications begin!!
http://www.eastangliankitcars.co.uk
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Chaz
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| posted on 18/7/09 at 12:21 PM |
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cylinder decompressing?
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russbost
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| posted on 18/7/09 at 02:22 PM |
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leaking servo? - is it a sucking noise?
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NOTE:This user is registered as a LocostBuilders trader and may offer commercial services to other users
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mrwibble
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| posted on 18/7/09 at 03:57 PM |
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its a blowing noise. engines done less than 40k so cant think it would be the cylinder. will investigate the seal on the expansion tank lid. thanks
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Paul (Notts)
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| posted on 18/7/09 at 06:33 PM |
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My RV8 hissis for 5 or 6 seconds when turned off simply because I run a PCV system that give me a very low pressure in the engine block (stopped all
oil leaks).
My hissing sound is air going in throught the small breather hole on one of the rocker covers.
Paul
Dont know much about zetecs but if they run a PCV system may be connected.
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mrwibble
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| posted on 25/7/09 at 12:49 PM |
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having investigated further. The noise is coming from the crank ventilation hose. which is connected, via an in line filter to the air box. it blows
during running, but then sucks after shutoff, this is normal?
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