Login Register

04 xc70 engine noise

Help, Advice, Owners' Discussion and DIY Tutorials on Volvo's stylish, distinctive P2 platform cars sold as model years 2001-2007 (North American market year designations).

2001 - 2007 V70
2001 - 2004 V70 XC (Cross Country)
2004 - 2007 XC70 (Cross Country)
2001 - 2009 S60
2003 - 2007 S60 R
2004 - 2007 V70 R
Post Reply
User avatar
famfeld
Posts: 187
Joined: 31 October 2014
Year and Model: 04 xc70
Location: massachusetts
Has thanked: 9 times
Been thanked: 6 times

04 xc70 engine noise

Post by famfeld »

I was told the knocking is the drive belt tensioner. Not sure because it goes away in N or P. The squeaking is constant, but clunking aound goes away. At idle only, goes away when revving or driving

https://drive.google.com/file/d/1kxNrYy ... p=drivesdk
Top
User avatar
jonesg  
Posts: 3509
Joined: 16 January 2008
Year and Model: 2004 V70
Location: Northern maine.
Has thanked: 70 times
Been thanked: 482 times

Post by jonesg »

famfeld wrote: ↑25 Apr 2023, 16:01 I was told the knocking is the drive belt tensioner. Not sure because it goes away in N or P. The squeaking is constant, but clunking aound goes away. At idle only, goes away when revving or driving

https://drive.google.com/file/d/1kxNrYy ... p=drivesdk
Remove the belt and listen again, if you wait it will soon shred the belt.
When it shredded the belt it made a real mess on mine.
Top
User avatar
famfeld
Posts: 187
Joined: 31 October 2014
Year and Model: 04 xc70
Location: massachusetts
Has thanked: 9 times
Been thanked: 6 times

Post by famfeld »

I'm going to be doing that tomorrow. Just occurred to me. I guess i panicked because i don't want any transmission or engine issues
Top
User avatar
famfeld
Posts: 187
Joined: 31 October 2014
Year and Model: 04 xc70
Location: massachusetts
Has thanked: 9 times
Been thanked: 6 times

Post by famfeld »

Just checked belt and found crank pulley loose with center bolt missing. Strange how 2 trusted professional mechanics misdiagnosed this!
Thanks for the help
Feld
Top
User avatar
BlackBart
Posts: 6523
Joined: 10 December 2016
Year and Model: 2004 XC70 BlackBetty
Location: Over the far far mountains
Has thanked: 927 times
Been thanked: 885 times

Post by BlackBart »

Good catch!
ex-1984 245T wagon
1994 850T5 wagon
2004 XC70 wagon BlackBetty
Top
User avatar
jonesg  
Posts: 3509
Joined: 16 January 2008
Year and Model: 2004 V70
Location: Northern maine.
Has thanked: 70 times
Been thanked: 482 times

Post by jonesg »

famfeld wrote: ↑26 Apr 2023, 10:33 Just checked belt and found crank pulley loose with center bolt missing. Strange how 2 trusted professional mechanics misdiagnosed this!
Thanks for the help
Feld
Its a center nut no ?
32mm I think, something big.
Don't run it.
Top
User avatar
abscate
MVS Moderator
Posts: 35321
Joined: 17 February 2013
Year and Model: 99: V70s S70s,05 V70
Location: Port Jefferson Long Island NY
Has thanked: 1507 times
Been thanked: 3827 times

Post by abscate »

30 mm Hex on the P80 and I think P2 is the same.
Empty Nester
A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 XC90-in-Red
Link to Maintenance record thread
Top
vtl
Posts: 4733
Joined: 16 August 2012
Year and Model: 2005 XC70
Location: Boston
Has thanked: 114 times
Been thanked: 607 times

Post by vtl »

I lost that nut not so long ago, too. My 450 ft-lbs electric impact wrench failed me.
Top
User avatar
jonesg  
Posts: 3509
Joined: 16 January 2008
Year and Model: 2004 V70
Location: Northern maine.
Has thanked: 70 times
Been thanked: 482 times

Post by jonesg »

vtl wrote: ↑27 Apr 2023, 11:35 I lost that nut not so long ago, too. My 450 ft-lbs electric impact wrench failed me.
same here, bought a new nut and applied blue loctite. 2 yrs, fine so far, I do check it occasionally.
Top
User avatar
Blacklab467
Posts: 1113
Joined: 9 August 2016
Year and Model: 2007 xc 70
Location: Calgary, AB
Has thanked: 114 times
Been thanked: 264 times

Post by Blacklab467 »

Perhaps this is another good reason to not remove the crankshaft bolt and pulley when changing the timing belt.
2003 XC 70 (sold)
2007 XC 70, 1970 Dodge Charger R/T.
Top
Post Reply
  • Similar Topics
    Replies
    Views
    Last post

Return to “S60, V70, V70-XC 2001-07”