"booming" noise from engine bay when driving

AndyCook

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I am in scotland
Apr 16, 2010
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Old Rayne, Aberdeenshire
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noticed my LC90 sounding a bit noiser than usual at the moment, a kind of "booming" noise. I suspected induction noise, but can't see any splits in air-intake lines
the airfilter box clamps seem tight,
but when vehicle is stationary, and i rev it using the throttle control cable, and hold down on airfilter box, it does seem to lessen the noise a bit

anyone else had these symptoms?
ta
 

Chris

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I am in europe
Feb 24, 2010
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Not on the fuel pump. It's in the foot well and it a squealing sort of noise. It's part of the fuel return You need to tug your man spring a few times to cure it. Sorry, that should have read main spring.


Chris
 
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sae70

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I am in uk
Aug 10, 2010
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Witham, Essex, United Kingdom
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Chris said:
You need to tug your man spring
At every oportunity :thumbup: :D

While showing a m8 of mine rescently the non-return drain valve in the bottom of my air box he pointed out that the flexi hose to the lid was split :shock: I must have had the lid off of the top of the air box 3 or 4 times over the prior couple of weeks & had my head in the engine bay for hours on end just dribbling over the engine & had not noticed once that the flexi was split so all I'll say is have a good tug on all your hoses :D ;)

Gave Ian Rubie a PM & a new one is winging its way to me as we speak :thumbup:

P8260209.jpg
 

AndyCook

Well-Known Member
I am in scotland
Apr 16, 2010
3,693
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Old Rayne, Aberdeenshire
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as follow up - i think its snorkel ducting in the wing - resonating

had a look - removed the side light and underwing plastic and discovered one scary thing - the "boom box" - assembly, factory air-intake box, wasn't properly sealed , at the front end (just behind sidelight) with the pipe that runs through inner wing to airbox...
so glad i didn't go through any deep water recently...
so i used zip-ties to sort that out and some silicone sealant.

put back together - resonating is worse now when i went for a drive - so i will have to have another look and check everthhing is secure in there and add some foam padding to stop the pipe-work touching the wing etc
 

sae70

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I am in uk
Aug 10, 2010
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Witham, Essex, United Kingdom
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You only had to go through all of that because you own a Land Cruiser :D If you owned an LR you would not have hear that noise over all of the others :lol: So you've only got yourself to blame :D ;)
 

ignat

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I am in south_africa
Mar 22, 2010
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Johannesburg, South Africa
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Andy

I had this exact same problem following my snorkel install.

Got better after foam padding etc but now the front fender resonates at certain revs. Only occasionally, but it is still damn annoying.
 

AndyCook

Well-Known Member
I am in scotland
Apr 16, 2010
3,693
492
83
Old Rayne, Aberdeenshire
Garage
i also put a block of very solid foam, between inner and outer wings - near lower door hinge - that made a big difference in preventing the fender (wing) resonating
 
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