Strange noise from turbo coming off boost and isolated misfire - Alfa Romeo Forum
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Strange noise from turbo coming off boost and isolated misfire

Right then, how best to have a discussion about noises in a forum???

I am about 3 months into my first experience of Alfa ownership and its a 2.4 159 auto Lusso. I'm quite tuned into car noises but I have now reconciled myself to it sounding like an old taxi wrapped in a tractor, particularly when cold.

Anyway, there is this other noise which is driving me mad simply because I can't work out if it's a problem or a 'feature'.

When the box is changing up whilst poodling around or on gentle pressure from the right foot ther is a strange, quite loud, um, metallic sigh from what I believe to be the turbo as it coincides with boost dropping off on the gauge. Not heard it on any turbo oil burners I have had before.

So, on the basis of not enough information and a poor description, should I worry?

The other question relates to a sudden misfire/vibration and power loss the other day on the M11. Moving up the hill towards North Weald the car suddenly felt like it had square wheels and no power. I eased up and it stopped. Moved over and slowed down and it did it only once more before I pulled off and stopped the car. Brakes felt fine, wheels and tyres fine. I took the key out started it again and from that point it ran us for 300 miles around Norfolk in the rain for a couple of days. Isolated ECU brainburp or something?

Sorry for the long post, but it's this or desperate housewives!
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Mileage ?

My turbo went on 98k and had the same symptoms as this, they have variable vains that wear loose and scrape the shell of the turbo, there is a thread on it.

New turbo are available on ebay for 250 .. then fitting, luckily i had mine done under warranty.
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Have you had it on a code reader? Checked all sensors etc...?
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Originally Posted by AdamHarvey7 View Post
New turbo are available on ebay for 250
Really, where?
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Originally Posted by Alfa.Romeo View Post
Really, where?
The one i saw other day must have sold, theres a couple on there for 350 - 400, but they do come along cheaper.
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I get an occasional wheezing sigh at low speed but it's not metallic, be interested to know when you find out.
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You can't buy a new turbo for 250 etc, you may be able to buy a second hand one or a badly reconditioned one, bear in mind that we recently had a faulty turbo cause a complete engine failure

We have brand new original turbo's on our shop

159 / Brera 2.4 JTDm Turbocharger (200Bhp) - Autolusso New Parts Shop

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boost , coming , isolated , misfire , noise , strange , turbo

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