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Hissing from engine when acceleratingViews : 908 Replies : 3Users Viewing This Thread : |
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Feb 8th, 2023, 22:07 | #1 |
New Member
Last Online: May 23rd, 2023 18:48
Join Date: Feb 2017
Location: Manchester
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Hissing from engine when accelerating
Car: XC60 D4 2017.
Last week my car started making a hissing from the engine area when accelerating (only when warm). When I googled it, intercooler and turbo pipe/hose split came up. I looked all over but could not find anything. Weird thing is it now has stopped. Heres my thoughts, any advise welcome. Could it be my car regenerating the diesel particulate filter. I was towing a caravan when it started and it was under load. |
Feb 8th, 2023, 22:21 | #2 |
New Member
Last Online: Aug 21st, 2023 22:31
Join Date: Mar 2011
Location: Aberdeen
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Sadly, no thoughts, but I noticed mine doing this yesterday.
Under medium acceleration, it almost sounds like the demister has been turned on, but it raises with engine speed. Engine warning light also came on (code 009), so I’d turned down the radio to pay more attention, it may have been doing it a while. Fuel consumption has also dropped over last few days, i thought it might be the DPF running too - or perhaps not clearing properly. |
Feb 8th, 2023, 22:28 | #3 |
Extrahumanestrial
Last Online: Feb 13th, 2023 19:02
Join Date: Jun 2022
Location: Budapest
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Sounds like an air leak if the revs are going up.
@ OP have a look and smell between the engine and gearbox, if it's fume smelling you probably have a cracked egr pipe and the crack was acting like a whistle until it got bigger, best time to check is from stone cold. You probably won't be able to see the split in the metal pipe but if the smell is there it's split, it goes at the rippled vibration sections. hth. |
Feb 9th, 2023, 02:02 | #4 | |
Premier Member
Last Online: Yesterday 04:01
Join Date: Apr 2009
Location: Near Plymouth
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Quote:
Classic symptom sounds like a steam engine but wont go above 40 mph. Snail slow to pull away from stop. I've got DPF but I dont think Regen makes a noise when happening just maybe smoke from behind. Regen on mine usually goes un-noticed.
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