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question about pcv

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
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misha
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Re: question about pcv

Post by misha »

How important is oil change after replacing PCV system?Is it necessary?
'97 850 2.5 20v / fully equipped / Motronic 4.4 from the factory / upgraded with S,V,C,XC70 instrument cluster / polar white wagon
History of Volvos in the family:
'71 144 S
'73 144 De Luxe
'78 244 DL
'78 244 DL
'79 244 GLE
'85 340 GLS

Ozark Lee
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Post by Ozark Lee »

How important is oil change after replacing PCV system?Is it necessary?
Right or wrong, I do it at the same time. I'm already in my grubby clothes and covered in grime. I try to batch car repairs by doing a major repair (Timing belt, PCV, brakes, etc.) on one of them and then little stuff like oil changes on all of the rest of the fleet while I am still filthy.

...Lee
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1999 V70XC - Nautic Blue - Totaled while parked.
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MadeInJapan
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Post by MadeInJapan »

Ozark Lee wrote: I try to batch car repairs by doing a major repair (Timing belt, PCV, brakes, etc.) on one of them and then little stuff like oil changes on all of the rest of the fleet while I am still filthy....Lee
I hear you :mrgreen:
'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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misha
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Post by misha »

Thanks for answers,but how important it is,because it's not time for oil change,yet?!
'97 850 2.5 20v / fully equipped / Motronic 4.4 from the factory / upgraded with S,V,C,XC70 instrument cluster / polar white wagon
History of Volvos in the family:
'71 144 S
'73 144 De Luxe
'78 244 DL
'78 244 DL
'79 244 GLE
'85 340 GLS

MadeInJapan
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Post by MadeInJapan »

I don't think it's that important. If you really feel like it is, then change it or wait on the PCV replacement.
'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

holler1
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Post by holler1 »

Misha,
One thing to consider. If you have a lot of sludge in the passages into the engine, cleaning might cause some of the sludge to get pushed into the oil sump, and an oil change might help flush it out. If there isn't much sludge, probably not an issue.
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MadeInJapan
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Post by MadeInJapan »

Good point- if you have sludge, try to dig it out and pull it out rather than push it in...
'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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misha
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Post by misha »

I was thinking about that too but wasn't sure.
I think that i have all pieces of a puzzle now,i'll notice you guys for results when i finish.
Thanks for advices!
'97 850 2.5 20v / fully equipped / Motronic 4.4 from the factory / upgraded with S,V,C,XC70 instrument cluster / polar white wagon
History of Volvos in the family:
'71 144 S
'73 144 De Luxe
'78 244 DL
'78 244 DL
'79 244 GLE
'85 340 GLS

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