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Noise while accelerating

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Noise while accelerating

Postby enndee » Tue Jun 09, 2009 8:40 am

Here's a weird one with my LWB TDCi that I will try to describe accurately.
Under acceleration in any gear, I get a noise which sounds like a leak from the exhaust manifold (I am pretty sure it isn't that). If I lift off the throttle, the noise disappears :shock: Also, the noise disappears as the speed builds, again in all gears :? It doesn't make any difference if the van is loaded or empty and whether I accelerate gently or hard - although under hard acceleration the noise goes away sooner!!!!
I really have no idea where to start looking with this one.
Anyone got any ideas please?
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Re: Noise while accelerating

Postby mattvik30 » Tue Jun 09, 2009 1:07 pm

It sounds to me like the turbo, well is it sort of like an induction sound? if its this its probably nothing to worry about as my van was the same with a slight whistle under acceleration. I have however now fitted an aftermarket airfilter and the sound is slightly louder. Its due to hearing the air flow through the airfilter......well i think it is anyway, as im not a mechanic and far from it. However my van has done this for over a year and a half with no problems. I actually like the sound now!!! lol
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Re: Noise while accelerating

Postby enndee » Tue Jun 09, 2009 3:13 pm

mattvik30 wrote:It sounds to me like the turbo, well is it sort of like an induction sound? if its this its probably nothing to worry about as my van was the same with a slight whistle under acceleration. I have however now fitted an aftermarket airfilter and the sound is slightly louder. Its due to hearing the air flow through the airfilter......well i think it is anyway, as im not a mechanic and far from it. However my van has done this for over a year and a half with no problems. I actually like the sound now!!! lol

Yes I suppose it is an induction type noise. I would really rather not hear it!
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Re: Noise while accelerating

Postby SirKit Breaker » Wed Jun 10, 2009 12:33 am

Is your exhaust OK?
GREAT BRITAIN LOVE IT OR LEAVE IT.
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Re: Noise while accelerating

Postby ginsters » Thu Jun 11, 2009 10:25 am

check the jubiley clips are tight on the turbo pipes
the red ones go faster...

53 plate 75ps lwb
vantunner remap and all the other jazz

unfortunately the doors aint as great as the caddy

north wales where the the men are men and the sheep are scared!
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