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2003 V70 non turbo

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2001 - 2007 V70
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Mohjoh71
Posts: 4
Joined: Thu Dec 17, 2009 1:55 pm
Year and Model: 2003 V70 2002 S60
Location: Story City, Ia

2003 V70 non turbo

Post by Mohjoh71 »

This a new issue. When I start it, the engine revs all the way up to red line. I shut it off quickly and waited a minute and then it started normally. It's done this 3-4 times recently. Any ideas?
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oragex
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Re: 2003 V70 non turbo

Post by oragex »

Of course, first I would look at the floor carpet, in case the pedal gets stuck somehow.

How many miles on it ? If it's an early 2003, do you have the Marelli ETM ? Looks like this https://www.google.com/url?sa=i&rct=j&q ... 9873313935

Maybe an engine management problem ? Normally the engine will rev around 1500 rpm to heat up the cat and build some vacuum, maybe a sensor is fouling the ECU ?

Less probable, but maybe also an issue with a leaking injector ? I'm thinking, injectors leaking overnight some gas inside the cylinders.. just a theory..
cn90
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Re: 2003 V70 non turbo

Post by cn90 »

Rarely caused by dirty Throttle Body.
May want to clean TB, very easy DIY.
I posted the DIY TB in XC90 forum...
2004 V70 2.5T 100K+
2005 XC90 2.5T 110K+
Mohjoh71
Posts: 4
Joined: Thu Dec 17, 2009 1:55 pm
Year and Model: 2003 V70 2002 S60
Location: Story City, Ia

Re: 2003 V70 non turbo

Post by Mohjoh71 »

Thank you.
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RickHaleParker
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Re: 2003 V70 non turbo

Post by RickHaleParker »

Add large vacuum leak to what is listed above.
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.
2005 XC90 T6 Executive, B6294T, 4T65 AWD, Bosch Motronic 7.0.
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