 | Home > Maintenance & Modifications > Strange Intake Noise |
 
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| LandRoverAnorak Member Since: 17 Jul 2011 Location: Surrey Posts: 11324  
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Hello folks,
Can anybody help with a strange intake noise that my 110 has developed? It sounds, for all the world, like somebody cupping their hand over the end of a vacuum cleaner hose and typically happens at the point of changing up from first to second and second to third. Also occasionally when feathering a light throttle. It generally doesn't affect performance, although occasionally it's accompanied by a 'hiccup'. It's been doing it for ages, on and off, and I originally thought it was the EGR valve, but a new replacement didn't make any difference. Since then, it's had a new, larger intercooler, new silicon hoses and the pipe from wing to airbox replaced by a much larger diameter one as part of the snorkel install. Last week, I discovered that one of the airbox lid clips had gone AWOL and thought I'd found the culprit, but again fitting a replacement has made no difference, which has led me to ask for help here. The only thing of significance left between open air and the inlet manifold is the turbo. Could it be something like a sticking wastegate? If so, any pointers on how to approach? Thanks, all. Darren 110 USW BUILD THREAD - EXPEDITION TRAILER - 200tdi 90 BUILD THREAD - SANKEY TRAILER - IG@landroveranorak "You came in that thing? You're braver than I thought!" - Princess Leia Last edited by LandRoverAnorak on 26th Aug 2024 7:19am. Edited 1 time in total |
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19th Jul 2020 8:37am |
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| ickle Member Since: 22 Jul 2010 Location: South Vendee Posts: 1788  
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Viscous fan?
Keith |
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19th Jul 2020 8:39am |
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| LandRoverAnorak Member Since: 17 Jul 2011 Location: Surrey Posts: 11324
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No, I'm pretty sure it's somewhere in the air intake system. Since fitting the snorkel, it's become very easy to hear it above everything else. Darren
110 USW BUILD THREAD - EXPEDITION TRAILER - 200tdi 90 BUILD THREAD - SANKEY TRAILER - IG@landroveranorak "You came in that thing? You're braver than I thought!" - Princess Leia |
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19th Jul 2020 9:09am |
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| LandRoverAnorak Member Since: 17 Jul 2011 Location: Surrey Posts: 11324
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Anybody got any more thoughts, folks? Darren
110 USW BUILD THREAD - EXPEDITION TRAILER - 200tdi 90 BUILD THREAD - SANKEY TRAILER - IG@landroveranorak "You came in that thing? You're braver than I thought!" - Princess Leia |
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19th Jul 2020 9:34pm |
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| PCM Member Since: 25 Jan 2019 Location: North East Posts: 884
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Could your new hoses be collapsing?
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20th Jul 2020 1:08am |
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| LandRoverAnorak Member Since: 17 Jul 2011 Location: Surrey Posts: 11324
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Dunno
 It's possible I suppose, but the noise was there before and after the change, so seems less likely. Darren
110 USW BUILD THREAD - EXPEDITION TRAILER - 200tdi 90 BUILD THREAD - SANKEY TRAILER - IG@landroveranorak "You came in that thing? You're braver than I thought!" - Princess Leia |
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20th Jul 2020 7:18am |
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| PCM Member Since: 25 Jan 2019 Location: North East Posts: 884
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It'd have to be on the intake side sucking instead of an intercooler pressure.
Do you have anything that could be crumpling but springing back when the revs drop? |
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20th Jul 2020 7:46am |
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| LandRoverAnorak Member Since: 17 Jul 2011 Location: Surrey Posts: 11324
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Nothing obvious. The pipe from RAI to airbox is now a length of 90mm spiral wound flexi pipe but it's good quality stuff that came as part of the Nakatanenga kit. Plus, as with the other hoses, the problem was there both before and after its' installation. Darren
110 USW BUILD THREAD - EXPEDITION TRAILER - 200tdi 90 BUILD THREAD - SANKEY TRAILER - IG@landroveranorak "You came in that thing? You're braver than I thought!" - Princess Leia |
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20th Jul 2020 8:24am |
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| Grenadier Member Since: 23 Jul 2014 Location: The foot of Mont Blanc... Posts: 5839 
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Christ LRA, if you donβt know, how do you expect any of us to have the foggiest? Blackwolf might be your saviour, beyond that you have to look to the heavens for some devine intervention
 Monsieur Le Grenadier
I've not been everywhere, but it's on my list..... 2011 Puma 110DC - Corris Grey |
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20th Jul 2020 9:35am |
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| blackwolf Member Since: 03 Nov 2009 Location: South West England Posts: 17463 
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Apart from noting that it won't be a sticking wastegate because you don't have one, you have a variable vane turbo, I don't have much to add, I'm afraid. It is an odd noise, that's for sure! You say that sometimes there is a hiccup at the same time? Do you have any stored fault codes?
I'll ponder about this for a while, and see if I can come up with any ideas (being mindful that I am less familiar with the 2.2 than the 2.4). |
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20th Jul 2020 9:43am |
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| LandRoverAnorak Member Since: 17 Jul 2011 Location: Surrey Posts: 11324
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Hmm, thanks chaps. I can't tie it back to a particular service visit, unfortunately. In fact, that last two visits including replacing the EGR and intercooler/pipework respectively, with no apparent change.
Noted about the wastegate. If I'd thought about it more then I'd have realised that but can't get away from the thought that it sounds a bit like a dump valve I haven't checked for fault codes but I'm not getting any warning lights. I'll plug in my IID and see if it says anything useful.
Unfortunately Grenadier, the only special power that my anorak provides is a degree of obsessing about details  Darren
110 USW BUILD THREAD - EXPEDITION TRAILER - 200tdi 90 BUILD THREAD - SANKEY TRAILER - IG@landroveranorak "You came in that thing? You're braver than I thought!" - Princess Leia |
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20th Jul 2020 11:07am |
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| Angus_Beef Member Since: 30 Apr 2015 Location: Oslo Posts: 434  
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Stock airbox? are the two plastic "hooks" under the wing engaged? I have had a mechanic set the airbox lid on and snap closed the metal clips leaving the other side of the airbox not fastened proplerly. Roaming around π³π΄π¨π
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20th Jul 2020 11:45am |
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| LandRoverAnorak Member Since: 17 Jul 2011 Location: Surrey Posts: 11324
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It's been on and off a few times but it's worth a check
 Darren
110 USW BUILD THREAD - EXPEDITION TRAILER - 200tdi 90 BUILD THREAD - SANKEY TRAILER - IG@landroveranorak "You came in that thing? You're braver than I thought!" - Princess Leia |
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20th Jul 2020 1:11pm |
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| LandRoverAnorak Member Since: 17 Jul 2011 Location: Surrey Posts: 11324
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Well, having failed to find anything obvious, I've dispatched it to my local LR indie for them to take a look tomorrow. Hopefully, they'll have better luck than me
 Darren
110 USW BUILD THREAD - EXPEDITION TRAILER - 200tdi 90 BUILD THREAD - SANKEY TRAILER - IG@landroveranorak "You came in that thing? You're braver than I thought!" - Princess Leia |
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5th Aug 2020 8:40pm |
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