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new guy posting, volvo 850 turbo wagon boost problem

Help, Advice and DIY Tutorials on Volvo's P80 platform cars -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, including 850 R, 850 T-5R, 850 T-5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

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cookiemonster131
Posts: 33
Joined: 1 June 2013
Year and Model: 95 855
Location: NC

Re: new guy posting, volvo 850 turbo wagon boost problem

Post by cookiemonster131 »

now i have replaced the CBV with the ipd heavy duty one...

socompsp
Posts: 149
Joined: 12 May 2013
Year and Model: c70 HPT 1998
Location: orlando

Post by socompsp »

if you have a vacuum/pressure pump id put pressure on the line to the wastegate and se what happens, see if it hold pressure. before so you can see if you can move the rod by hand easily or not. you should be able to move it but it shouldnt bee too easy.
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cookiemonster131
Posts: 33
Joined: 1 June 2013
Year and Model: 95 855
Location: NC

Post by cookiemonster131 »

ok the wastegate diaphram has good tension on it and it holds vacuum so i dont think that is it... i am starting to think the CBV spring is not seated properly or something i dont know....

cookiemonster131
Posts: 33
Joined: 1 June 2013
Year and Model: 95 855
Location: NC

Post by cookiemonster131 »

fixed it, under the throttle cover the elbow on the bottom side was loose. tightened the clip and it is good to go. going to reset the tcv and see how it is does.

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matthew1  
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Year and Model: 850 T5, 1997
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Post by matthew1 »

Elbows.

Hey don't feel bad. Even übermechanic Dave here in Denver who did my epic 90k mile service on my 2004 V70 R got two lines into the TCV reversed. That caused some strange driving characteristics :wink:.
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1998 V70, no dash lights on

1997 850 T5 [gone] w/ MSD ignition coil, Hallman manual boost controller, injectors, R bumper, OMP strut brace

2004 V70 R [gone]

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