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hissing noise coming from inlet area https://www.fiesta-si.com/forums/viewtopic.php?f=4&t=20665 |
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Author: | ajax1121 [ Tue Sep 28, 2010 4:43 pm ] |
Post subject: | hissing noise coming from inlet area |
hi guys, wondered if someone could help me, i have a 1.4 8v Si and recently its been running rough. It has a dramatic loss of power now (50mph flat out) and a hissing sound coming from the inlet maninifold area, but no1 can seem to find any leaks or anything. I need some help asap and its gettin worse and worse, i dont want to lose my Si cheers |
Author: | will121 [ Tue Sep 28, 2010 6:11 pm ] |
Post subject: | Re: hissing noise coming from inlet area |
sounds initially like a air leak to me, good way to find out if it is, is to spray WD40 or easy start around the inlet area and see if the revs rise, if it does definatly an air leak somewhere |
Author: | Percy [ Tue Sep 28, 2010 6:54 pm ] |
Post subject: | Re: hissing noise coming from inlet area |
As mentioned try the above, if it is then take it off and check the gasket etc and refit. |
Author: | big g1985 [ Tue Sep 28, 2010 8:45 pm ] |
Post subject: | Re: hissing noise coming from inlet area |
check your vacum hoses are not split |
Author: | ajax1121 [ Wed Sep 29, 2010 2:26 pm ] |
Post subject: | Re: hissing noise coming from inlet area |
have tried spraying around the inlet but nothings happening, will check the vacuum hoses tho, i just hope it isnt major. thanks anyways |
Author: | xr2ijoe [ Thu Sep 30, 2010 9:34 am ] |
Post subject: | Re: hissing noise coming from inlet area |
try a new inlet gasket ![]() |
Author: | ajax1121 [ Sun Oct 03, 2010 3:57 pm ] |
Post subject: | Re: hissing noise coming from inlet area |
may have just found the problem, the noise has been gettin worse and now the noise can be heard just on tick over and it seems to be coming from the exhaust. Noticed there isnt any pressure coming out the back, so my guess is the cat is blocked and its forcing the air back up?? |
Author: | stainlessmole [ Sun Oct 03, 2010 7:15 pm ] |
Post subject: | Re: hissing noise coming from inlet area |
Could be something to do with your EGR, i have the same problem... although mine is coming from the release valve. http://www.fiestaguides.co.uk/phpBB2/vi ... c01d8f1604 I'll do a video in a min ![]() |
Author: | stainlessmole [ Sun Oct 03, 2010 8:17 pm ] |
Post subject: | Re: hissing noise coming from inlet area |
Author: | fiestasiphil [ Sun Oct 03, 2010 9:44 pm ] |
Post subject: | Re: hissing noise coming from inlet area |
my si had this is wouldnt do any more than 30mph and cat was blocked |
Author: | ajax1121 [ Mon Oct 04, 2010 2:02 am ] |
Post subject: | Re: hissing noise coming from inlet area |
thanks for help, will let ppl knw what we find |
Author: | ajax1121 [ Fri Oct 08, 2010 12:45 pm ] |
Post subject: | Re: hissing noise coming from inlet area |
anyone know what causes the cat to block? why would the inside collapse? |
Author: | meilack [ Fri Oct 08, 2010 12:53 pm ] |
Post subject: | Re: hissing noise coming from inlet area |
they just can do over time ![]() |
Author: | ajax1121 [ Sat Oct 16, 2010 12:22 pm ] |
Post subject: | Re: hissing noise coming from inlet area |
thanks for the help, it was the cat collapsed, i got a new one for £60, all fitted now and all power is back |
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