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PCV SYSTEM recommendations/advice for a newbie Topic is solved

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

1992 - 1997 850, 850 R, 850 T5-R, 850 T5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

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PCV SYSTEM recommendations/advice for a newbie

Post by shape819 » Wed Oct 16, 2019 2:45 pm

Hey all - I am NEW to volvos and new to working on cars generally, but I just bought a 1998 v70 and I'm reading a ton and trying to learn. I'm going to have to do a cleanout of the pcv system, and I was wondering whether anybody has recommendations for great guides, videos, how-tos or just general words of advice.

The first thing I'm looking at is sourcing what I need to do the job: I'm going to purchase the pcv system replacement parts, get some oil, a fuel filter, fuel system cleaner, and transmission fluid. Are there any recommendations for exactly which pvc system replacement to buy? I've found so many at varying prices, and I'm a little over my head. I'd also love recs for the proper oil and transmission fluid weights (it seems like 75w80 is right for transmission fluid but I just want to be sure!)

Any information would be so helpful!



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Re: PCV SYSTEM recommendations/advice for a newbie

Post by matthew1 » Wed Oct 16, 2019 3:37 pm

Welcome to MVS, shape819. PCV system has been discussed quite a bit here. Take a look at viewtopic.php?t=28487


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Re: PVC SYSTEM recommendations/advice for a newbie

Post by abscate » Wed Oct 16, 2019 3:42 pm

Welcome shape819!

You’ve touched on a topic here that we have strong feelings about. Rubber parts of the PCV see a lot of hot oil vapor amd the cheap aftermarket parts don’t last. We have had life reports of months on the low cost stuff

Generally you want to stick with Volvo parts on the things that take a lot of labor

In the Volvo Repair database there are several wroteups on the PCV service

Timing belt is another thing you need to evaluate on a “new to you “ Volvo

That’s a manual transmission fluid you are referencing , is your car a stick shift ?

The process of restoring a Volvo to like new running condition is called Stage 0 here, it doesn’t mean you are doing a classic car install, just returning the car to tip top running condition

I’ll find and link to Robert Spinners famous “ new Volvo “ video , too
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Re: PCV SYSTEM recommendations/advice for a newbie

Post by abscate » Wed Oct 16, 2019 3:45 pm

PS.....semicolons and Oxford commas, Has to be Brown


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Re: PCV SYSTEM recommendations/advice for a newbie

Post by shape819 » Wed Oct 16, 2019 3:54 pm

Thank you! Yes, the car is a manual, and luckily, the timing belt was replaced by the previous owner not too long ago, so I'm not worried about that quite yet. I've found a bunch of stuff on IPD and FCP Euro, some genuine volvo parts like the fuel filter as well as these system replacement parts (https://www.ipdusa.com/products/4993/11 ... lvo-114832) but I know people have complained about these sites so I just don't want to be purchasing something low quality.

also you correctly identified me via my oxford commas...not sure whether to be embarrassed or proud



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Re: PCV SYSTEM recommendations/advice for a newbie

Post by abscate » Wed Oct 16, 2019 4:18 pm

You can use Bosch stuff which makes OEM for Volvo ( original parts)

The IPD link is the right one for a Naturally Aspirated , or NA car. The turbo model might be different. If you have a big fat pipe going over your motor you have a turbo.

The big things that Volvos consume are spark plugs, distributor cap, and rotor. These are things that go bump in the night and stop you, or cause misfiring.

FCP will ship free above $50 and they are also about an hour from you by car, so their 5 day ship comes overnight

We also love their lifetime warranty of stuff if you plan on running your car forever, this pays off quickly. You can even return oil.

We actually do enforce grammar rules here, but seriously, text talk is the only thing that really gets you into trouble.

I’m at Brown for business a couple times a month.

Here is a great video from Mr Volvo himself, Robert Spinner ( 18 minute life commitment)

https://ma.vlip.lv/video/dnt%2FLGb5Z4UWvoI%3D.html


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Re: PCV SYSTEM recommendations/advice for a newbie

Post by abscate » Wed Oct 16, 2019 4:23 pm

Have you done the glove test to check for PCV pressure? That can help your prioritize your maintenance.

Quick description. Put a nitrile glove over the oil filler cap snout, cap removed, and gently rev engine. You want the glove to NOT inflate. If it stays limp, Your PCV is working well enough to wait another 10000 miles


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Re: PCV SYSTEM recommendations/advice for a newbie  Topic is solved

Post by cn90 » Wed Oct 16, 2019 7:48 pm

Couple things...

1. The oil trap is just a hollow box, it lasts > 200K miles.
So you can re-use it.
Just clean the inside the a small screwdriver and some gasoline.

2. All rubber parts (short rubber coupler, hose to top of engine etc.) ---> use Volvo genuine parts only.
They are cheap.

3. Don't buy the vent hose from Volvo (just a piece of junk).
Search forum for the Heater Hose mod:
viewtopic.php?t=53448

4. The factory Oetiker clamps, you can use new Oetiker clamps (FCPEuro) or screw-type clamp.


2004 V70 2.5T 100K+
2005 XC90 2.5T 110K+

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