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Cold Start ok, almost stall during warm up, then fine when warm

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

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pdr1966sc
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Year and Model: 2006 V70R
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Cold Start ok, almost stall during warm up, then fine when warm

Post by pdr1966sc »

I've seen similar symptoms but not a clear solution:
06 V70R - just been through Timing Belt, PCV, struts, radiator.......
If it is a few degrees below freezing - cold start is fine - but once the engine tries to slow and idle down (after about 1 min) it almost stalls, recovers, and almost stalls - does this for a few minutes until the engine is warmer, once fully warm it is just fine.
I have VIDA, and may try to observe fuel/02's but have not actively run vida this way yet.
Kind of tricky to trouble shoot because after it is warm, the symptoms are gone.
Also not a lot of fun booting up the laptop to watch in the morning when you are trying to get somewhere.....

Any suggestions appreciated.

93ForMe
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Year and Model: 1993 850
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Post by 93ForMe »

I know that this was posted a while ago, but did you ever find a solution to this problem? I am having a similar problem with my 93 850.
Thanks!

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darrylrobert
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Year and Model: 2001 v70xc M58
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Post by darrylrobert »

sounds like the ETM to me?..there is a test on VIDA
1981 260 GLE converted to 240 M46 after auto box failure
1987 740t auto converted to M47
1997 V70t5 auto converted to M56
1998 V70 factory M56 (parts car)
2001 XC70 factory M58
2002 XC70 auto (parts car)

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RickHaleParker
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Post by RickHaleParker »

93ForMe wrote: Sun May 17, 2020 5:38 pm I am having a similar problem with my 93 850.
When was the last time you cleaned the idle control valve?
1998 C70, B5234T3, 16T, AW50-42, Bosch Motronic 4.4, Special Edition package.
2003 S40, B4204T3, 14T twin scroll AW55-50/51SN, Siemens EMS 2000.
2004 S60R, B8444S TF80 AWD. Yamaha V8 conversion
2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0.

93ForMe
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Year and Model: 1993 850
Location: Portland
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Post by 93ForMe »

I cleaned my idle control valve a couple of weeks ago, still having the problem.
This is my situation:
viewtopic.php?f=1&t=93975

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