Strange noise!

4.2 V8 32v Naturally Aspirated - 414 bhp
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will_kdy
1st Gear
Posts: 74
Joined: Wed Aug 07, 2013 1:16 pm

Strange noise!

Post by will_kdy » Thu Jul 03, 2014 1:59 pm

Hi all,

After a bit of advice...

I've recently changed my non res Milly for a res well section anyway.. about 2 months after buying the car I noticed a whistle type whirr coming from the front of the engine bay on start up lasting about 2-3 minutes, I believe this is a system for warming the cats? anyway this whistle or whirr has now become almost a screech almost like the sound that comes from the power steering on full lock! It lasts about the same 2-3 mins after start-up.
Obviously it is alot more apparent after quietening down the exhaust!!

Has anyone ever had this happen before? If so what was the cause outcome?

Thanks in advance

Will.
Current Oriancio Borealis Avant - Double Glazing, Solar Sunroof, Ceramics, Black Optics, Individual Interior, Tinted Windows, Milltek Catted Downpipes, Milltek Res/non res Valved, Cool Box in Glovebox, defunked t.v, uprated headlights, KW V3 etc :D :yellowrs4:

Gone (1st love) 2007 RS 4 Daytona Saloon with Tech Pack, Buckets, Aluminium inlays & Adaptives

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sar
4th Gear
Posts: 768
Joined: Wed Mar 29, 2006 2:14 pm
Location: northeast uk

Re: Strange noise!

Post by sar » Thu Jul 03, 2014 2:18 pm

sounds like the secondary air injection pump is kaput.
b7rs4 phantom black, titan pack.

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will_kdy
1st Gear
Posts: 74
Joined: Wed Aug 07, 2013 1:16 pm

Re: Strange noise!

Post by will_kdy » Thu Jul 03, 2014 3:55 pm

Thanks sar!

Jesus they aint cheap either! can this be done by a complete novice with the right spanners or is it a rear ending raping by the stealers?
Current Oriancio Borealis Avant - Double Glazing, Solar Sunroof, Ceramics, Black Optics, Individual Interior, Tinted Windows, Milltek Catted Downpipes, Milltek Res/non res Valved, Cool Box in Glovebox, defunked t.v, uprated headlights, KW V3 etc :D :yellowrs4:

Gone (1st love) 2007 RS 4 Daytona Saloon with Tech Pack, Buckets, Aluminium inlays & Adaptives

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MikeFish
Cruising
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Joined: Tue Aug 31, 2010 9:23 pm
Location: The Middle of Somewhere

Re: Strange noise!

Post by MikeFish » Thu Jul 03, 2014 6:59 pm

Get rid of it. Will need mapping to stop the error coming up though. Speed the money on an MRC map instead.

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