|
S80 '98-'06 / S60 '00-'09 / V70 & XC70 '00-'07 General Forum for the P2-platform S60 / V70 / XC70 / S80 models |
Information |
|
Squeaking noise whilst idlingViews : 5616 Replies : 21Users Viewing This Thread : |
|
Thread Tools | Display Modes |
Oct 6th, 2014, 19:53 | #1 |
Junior Member
Last Online: Mar 25th, 2023 12:30
Join Date: Nov 2013
Location: Paderborn
|
Squeaking noise whilst idling
Hello all,
At idle, there is a squeaking noise coming from the auxiliary drive belt area. A Volvo dealer says that its the pulley wheel attached to the alternator; however, after removing the aux drive belt, none of the five wheels make any noise when I turn them. I have noticed that the wheel attached to the AC compressor stops and starts, which is probably due to the AC adjusting the temp. The aux drive belt does seem to have a lot of play in it when the engine is running, and seems to twist slightly too. Could this noise simply be the aux drive belt being too stretched over time, preventing the tensioner from maintaining the correct tension when the engine is idling? |
Oct 6th, 2014, 20:02 | #2 |
Premier Member
Last Online: Jan 19th, 2024 15:24
Join Date: Oct 2006
Location: Woodbridge, Suffolk
|
This does't sound right - the aux belt should be tight and true when running.
__________________
---------------------------------------------------------------------- Current: 2011 C30 1.6 D2 R-Design (155,000) Previous: 2004 S40 1.9D; 2004 S60 D5; 1996 V40 2.0; 1989 740 2.4 T |
Oct 6th, 2014, 20:04 | #3 |
VOC Member
Last Online: Yesterday 22:30
Join Date: Feb 2013
Location: North Yorkshire
|
you need to check the alternator pulley, it has a one way bearing inside, to do this you need to lock the alternator and then spin the pulley, Its easy to replace and requires a 33 spline alternator tool from ebay to remove. You can also buy the pulley from ebay for 32 pounds and you get a INA pulley without the Volvo price tag as its the same pulley from Volvo.
__________________
Previous -03 S40, 04 V70 D5, 04 V70 D5 Sport, 05 V50, 07 S60 D5, 09 V70 D5 R design, 12 XC60 DrivE, 15 V60 D3 Current- 05 XC90 D5 Exec, 12 XC70 D4 AWD Se Lux, 14 S80 D3 Se Lux |
The Following User Says Thank You to GrahamBrown1 For This Useful Post: |
Oct 6th, 2014, 20:10 | #4 |
VOC Member
Last Online: Yesterday 22:30
Join Date: Feb 2013
Location: North Yorkshire
|
this most definitely sounds like your alternator pulley has failed then
__________________
Previous -03 S40, 04 V70 D5, 04 V70 D5 Sport, 05 V50, 07 S60 D5, 09 V70 D5 R design, 12 XC60 DrivE, 15 V60 D3 Current- 05 XC90 D5 Exec, 12 XC70 D4 AWD Se Lux, 14 S80 D3 Se Lux |
The Following User Says Thank You to GrahamBrown1 For This Useful Post: |
Oct 7th, 2014, 22:54 | #5 |
Premier Member
Last Online: Feb 10th, 2024 19:13
Join Date: Nov 2008
Location: Huntingdon
|
"aux drive belt does seem to have a lot of play in it when the engine is running, and seems to twist slightly too."
This can be the alternator freewheel - if it is mis behaving then the belt can physically waggle about in use. more so on diesels due to the severe detonation accelleration of crank pulley Could this noise simply be the aux drive belt being too stretched over time, preventing the tensioner from maintaining the correct tension when the engine is idling? They dont stretch. The Tensioner is sprung and will always be set right. Turn the a/c off and see if squeals with a/c off - to rule out a/c |
The Following User Says Thank You to D5meister For This Useful Post: |
Oct 7th, 2014, 23:22 | #6 |
Premier Member
Last Online: Yesterday 22:26
Join Date: Jun 2009
Location: Devon
|
Ditto alternator pulley.
|
Oct 8th, 2014, 10:43 | #7 |
Premier Member
Last Online: Apr 2nd, 2024 19:50
Join Date: Dec 2007
Location: Wexford
|
Ditto ditto......
There are a few tests you can do such as flicking the pulley etc but they are inconclusive in the sense that if it is free in one direction that doesn't mean it's ok. Comparison with a new unit shows that there is 'free' and then there is 'free'. The belt should run true and smooth at idle. A barely perceptible movement of the tensioner pulley is ok but if you can see jumping without having to peer at it it's time to replace the freewheel pulley. They aren't a scheduled replacement item. I think they should be , at or before a timing belt change. Typically the manufacturers of these items quote a service life in the region of 80 thousand miles |
The Following User Says Thank You to Brendan W For This Useful Post: |
Oct 8th, 2014, 19:22 | #8 |
Junior Member
Last Online: Mar 25th, 2023 12:30
Join Date: Nov 2013
Location: Paderborn
|
Thanks guys, as you have confirmed what the Volvo dealer has said.
Looks like I will be removing my alternator in order to renew this free pulley wheel then, as Volvo wants €100 for the part and at least €200 for labour. I just hope I can find that tool quite cheap, as it will most likely end up being a one-off use unless it can be used on all cars??? |
Oct 8th, 2014, 20:06 | #9 |
Premier Member
Last Online: Apr 2nd, 2024 19:50
Join Date: Dec 2007
Location: Wexford
|
I carried mine to the local auto electrical repair shop. Starters,alternators etc. The INA part was there at 80 Euro. I had brought my own new part from Volvo ( a bit more than the 80) and he fitted it for free in five minutes chatting over the counter.
They're not all like that obvoiusly, point being I didn't get yet another special tool and he gave the alternator the once over when I was there. |
Oct 8th, 2014, 21:37 | #10 | |
Premier Member
Last Online: Dec 26th, 2021 13:42
Join Date: Dec 2013
Location: Crewe
|
Quote:
I'd chewed my old tool though so when I bought my genuine Volvo pulley, I took in my alternator to the parts counter and they replaced it within the price which was about £75 so the same cost as a good oem pulley+the tool.
__________________
2002 S60 SE D5 Manual 209000 miles |
|
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests) | |
|
|