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04 V70 2.5T MAF reads way high, no codes, stalls out Topic is solved

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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ZachS
Posts: 7
Joined: 1 October 2020
Year and Model: 2004 V70 2.5T
Location: Western Massachusetts

Re: 04 V70 2.5T MAF reads way high, no codes, stalls out

Post by ZachS »

It's certainly some sort of leak. Went for a drive with MAF unplugged. Past 2500RPM it sounds like a racecar, but has no boost. Gonna have to check the intercooler and anywhere else for obvious leaks.

ZachS
Posts: 7
Joined: 1 October 2020
Year and Model: 2004 V70 2.5T
Location: Western Massachusetts

Post by ZachS »

Whelp, figured it out. Intake pipe came off throttle body. Probably didn't put it on tight enough when I did the PCV. How do you make a post say solved?

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abscate
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Year and Model: 99: V70s S70s,05 V70
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Post by abscate »

jimmy57 wrote: 01 Oct 2020, 09:04 If you ruptured a hose anywhere between turbo outlet around back to throttle you'd have your symptoms. Intercoolers can split at core to end tank seam also so that needs to be checked. The turbo can pump air out of the leak as it is driven enough by exhaust the moment you start engine to force the air out. You do not have to open throttle to get turbo sped up enough for this to occur on low pressure turbo engines. The MAF is registering that air. If no leaks then failed MAF sensor is possible.

Whose got the Volvo Horns? Looks like they need to go back to Texas , again.

Thanks, Jimmy!

This failure brought me to MVS 7 years ago!
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1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 XC90-in-Red
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