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V70XC 2001 misfire at idle and low revs

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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musie66
Posts: 6
Joined: 24 February 2009
Year and Model: V70XC 2001
Location: United Kingdom

V70XC 2001 misfire at idle and low revs

Post by musie66 »

Engine starts and idles smoothly for 3 to 4 minutes then runs roughly, idle speed 800 revs. When driving runs okay initially then develops hesitation as engine warms up. Sometimes CEL comes on and engine goes into limp home mode. No fault codes showing. I posted this previously and have now got a code reader and been a bit more specific in the description of the problem. 2001 XC70 UK spec 85000miles throttle body changed at 75000 miles. Help!
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MadeInJapan
MVS Moderator
Posts: 13434
Joined: 31 March 2005
Year and Model: '98 S70 T5 '07S40T5
Location: Knoxville, TN American but born in Japan
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Been thanked: 35 times

Post by MadeInJapan »

No fault codes means that it could be your fuel pump relay.
'98 S70 T5 Emrld Grn Met/Beige Tons of Upgrades Mobil-1
'04 V70 2.5T Red/Taupe Some Upgrades Mobil-1
'07 S40 T5 AWD 6 speed manual! Silver/Black Stage1 Heico & Elevate
'07 S60 2.5T Blue/Taupe- my kid's Volvo
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