Volvo Community Forum. The Forums of the Volvo Owners Club

Forum Rules Volvo Owners Club About VOC Volvo Gallery Links Volvo History Volvo Press
Go Back   Volvo Owners Club Forum > "Technical Topics" > S40 / V40 '96-'04 General

Notices

S40 / V40 '96-'04 General Forum for the Volvo S40 and V40 (Classic) Series from 1995-2004.

Information
  • VOC Members: There is no login facility using your VOC membership number or the details from page 3 of the club magazine. You need to register in the normal way
  • AOL Customers: Make sure you check the 'Remember me' check box otherwise the AOL system may log you out during the session. This is a known issue with AOL.
  • AOL, Yahoo and Plus.net users. Forum owners such as us are finding that AOL, Yahoo and Plus.net are blocking a lot of email generated from forums. This may mean your registration activation and other emails will not get to you, or they may appear in your spam mailbox

Thread Informations

Whistle

Views : 2159

Replies : 28

Users Viewing This Thread :  

Reply
 
Thread Tools Display Modes
Old Nov 21st, 2021, 09:04   #1
lynns hubby
Master Member
 

Last Online: Mar 25th, 2024 23:08
Join Date: Oct 2011
Location: Great Yarmouth
Default Whistle

My daughters 02 1.9 Turbo diesel has just developed a whistle. It is throttle dependant. When I say that, I mean I gets louder as the revs increase. It sounds to me like an Air leak somewhere.
It does it if you rev it stationary on the drive and it does it as you drive. I can hear it as she pulls away from our house. I have checked all round the turbo and associated pipework for leaks induction and output side. I cannot find anything obvious. It does not effect power which if it was on the output side of the turbo I would have expected as it would not be delivering the correct amount/pressure of air.
It does not lack power in any way however she tells me it is using a little bit more fuel.

Any ideas would be appreciated as usual.
lynns hubby is offline   Reply With Quote
Old Nov 21st, 2021, 22:14   #2
Darlo 1
Lunatic.
 
Darlo 1's Avatar
 

Last Online: Yesterday 00:01
Join Date: Dec 2006
Location: staffordshire
Default

Check for play on the impellor in the turbo, it could be the beginings of turbo failure.
__________________
V40 1.9D 2004
620 miles to the tankful.
235000 miles on clock. Now sold,
S60 D5 2004.
I vape therefore I am.
Darlo 1 is offline   Reply With Quote
Old Nov 22nd, 2021, 09:08   #3
lynns hubby
Master Member
 

Last Online: Mar 25th, 2024 23:08
Join Date: Oct 2011
Location: Great Yarmouth
Default

Thanks for that, I have checked for radial and axial movement and it seamed fine but I will check again. It does sound more like an air whistle as opposed to blades rubbing but appreciate noises can be deceiving.
lynns hubby is offline   Reply With Quote
Old Dec 28th, 2021, 12:15   #4
lynns hubby
Master Member
 

Last Online: Mar 25th, 2024 23:08
Join Date: Oct 2011
Location: Great Yarmouth
Default

I have just checked the turbo again and can not detect any expensive play either axially or radially. Listening carefully it appears to be coming from the rear centre of the engine which is where the turbo sits.
I also removed all the flexi pipework small tubing etc to check for splits. Everything checked out fine.
I guess for the price of a used turbo its worth a punt as its now driving us nuts.
As I work away, I did not get the chance to check until the week before Xmas so did not want to get hold of a used unit as I had no time to fit it and I go back to work 29th untill 14th Jan.
I will source a used turbo on my return.
Any one out there breaking one for spares???

All the best for the New Year
lynns hubby is offline   Reply With Quote
Old Dec 29th, 2021, 16:21   #5
Kev0607
Premier Member
 

Last Online: Today 21:31
Join Date: Apr 2019
Location: Manchester
Default

Could it be a cracked intercooler?
__________________
2007 (P3) Volvo S80 SE 2.4D (163bhp) - 109,000 miles. Black exterior with cream leather interior.
Kev0607 is offline   Reply With Quote
Old Dec 30th, 2021, 21:07   #6
lynns hubby
Master Member
 

Last Online: Mar 25th, 2024 23:08
Join Date: Oct 2011
Location: Great Yarmouth
Default

That had crossed my mind too but the noise is definitely coming from the rear centre of the engine !!!!
lynns hubby is offline   Reply With Quote
Old Dec 31st, 2021, 22:46   #7
SPIGOTNUT
New Member
 

Last Online: Mar 17th, 2024 20:22
Join Date: Apr 2018
Location: exeter
Default

check the small hoses around the boost controller valve and the vacuum reservoir tank, also the boost controller valve itself.
SPIGOTNUT is offline   Reply With Quote
Old Dec 31st, 2021, 23:49   #8
lynns hubby
Master Member
 

Last Online: Mar 25th, 2024 23:08
Join Date: Oct 2011
Location: Great Yarmouth
Default

Thanks for the reply.
I have done, I have checked all the small tubing and valves. I even sprayed soapy water all around to look for a leak and found nothing.
lynns hubby is offline   Reply With Quote
Old Jan 1st, 2022, 00:41   #9
SPIGOTNUT
New Member
 

Last Online: Mar 17th, 2024 20:22
Join Date: Apr 2018
Location: exeter
Default

don't spend good money chasing this. check the throttle stop housing o ring (sometimes called throttle body...WRONG). can go flat with age and leak.
SPIGOTNUT is offline   Reply With Quote
Old Jan 1st, 2022, 00:54   #10
SPIGOTNUT
New Member
 

Last Online: Mar 17th, 2024 20:22
Join Date: Apr 2018
Location: exeter
Default

have you checked all inlet manifold studs/nuts are present/secure, is egr valve tight?
SPIGOTNUT is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT +1. The time now is 23:47.


Powered by vBulletin
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.