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Topic: Hissing Noise (Read 536 times) |
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derekne
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Posts: 282
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Hissing Noise
« on: Mar 18th, 2005, 9:16pm » |
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I was doing my normal listening under the bonet to the engine. To hear if anything was on its way out. And everything seemed fine. However when I rev up the 2.3 from the butterfly. I hear a loud but short hissing sound. It sounds like air escapeing from somewhere. It only happens when there is a quick burst of rev from idle speed. Ive had my ear to the butterfly it sure is coming from somewhere around there.
Can anyone tell me if this is normal? Is it just the normal air rushing in through air intake. Or could there be a leak? Is it normal to hear a hiss?
Regards......
Derek
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derekne
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scorpio_man
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Ford Kuga awd
Posts: 5654
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Re: Hissing Noise
« Reply #1 on: Mar 18th, 2005, 9:28pm » |
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hi there
not comming from the exhaust manifold? they're a bit prone to cracking.
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derekne
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Posts: 282
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Re: Hissing Noise
« Reply #2 on: Mar 18th, 2005, 9:55pm » |
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ooooooooh......I hope not 
Ill have another look. 
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derekne
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derekne
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Re: Hissing Noise
« Reply #4 on: Mar 18th, 2005, 10:37pm » |
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what did you do replace the manifold or weld it? 
Regards......
Derek
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derekne
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Simmo
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I'm an OAP !
Posts: 5508
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Re: Hissing Noise
« Reply #5 on: Mar 19th, 2005, 7:34am » |
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If it is a cracked manifold there have been a number of posts on the subject and the short answer is that replacement is the only real answer.  . To weld the unit requires it to be taken off the car because of the heat required and any attempt to deal with it on the car could trigger the air bag which would have to be 'de-activated' first. The success rate of 'welds' is ,I understand,not good anyway. HTH Simmo.
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Now I'm an OAP
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nadaman
Junior Member
mk2 granada 2.8i sport auto
Posts: 78
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Re: Hissing Noise
« Reply #6 on: Mar 19th, 2005, 10:19am » |
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you sure you haven't got a snake stuck in there somewhere? lol. 
paul
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wash that granada, he doesn't want to get the lorr
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Captain / Vice Admiral
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If the car was in Africa - certainly a possibility
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