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How long should a PCV job last?

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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hammertime
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Year and Model: '04 XC90, '07 XC70
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How long should a PCV job last?

Post by hammertime »

On my '98 V70 I did a complete PCV job, with all new parts when I bought the car at 103,000 miles. 27,000 miles later showing signs of needing a redo. Shouldn't it have lasted longer?
'04 XC90
'07 XC70
Zamboni Model 545 (my work vehicle)
Prev. '68 142, '96 850 GLT Sportswagon, '98 V70 AWD, '98 S70 T5, '00 V70 XC
first car ever owned: '74 BMW 2002tii

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jtp
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Year and Model: 99 v70R
Location: Westminster, MD
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Post by jtp »

Sounds like a job for... the Ultimate PCV Fix
99 V70R AWD
Almost 155K Miles
Breaking is how I know it’s working

98 S70NA (sold)
95 850 Turbo Wagon (RIP)

JRL
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Post by JRL »

Done properly and thoroughly if you then use synthetic oil and change it every 4-5000 miles, it should last forever.
The job was not done right.....
Mod note. Jim passed away in early 2022, his contributions to this forum are immortal, and he is missed. RIP

2000 V70R Black, 144,000 miles Wife's R.
2007 V70 2.5T White/Oak 111,000 MILES. Polestar tune, IPD bars, rear spoiler, dark grey Thors, DWS 06, HU850, sub.

nitehawk55
Posts: 60
Joined: 7 July 2012
Year and Model: S70 T5 1998
Location: Canada

Post by nitehawk55 »

This is another item I want to look after before swapping out the engine . Heck of a lot easier when it's out .

boosted5cyl
Posts: 1100
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Year and Model: '98 V70 T5, '99 S80
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Post by boosted5cyl »

What are the signs you are observing exactly? Might be excess crankcase pressure from coked ring packs. Leakdown test mightn't be a bad idea.
'04 XC90 2.5T AWD (Angus) 134K.
'99 S80 T6 (Medusa) 214k. On borrowed time LOL
'98 V70 T5 (Vivienne). RIP @ 228K. Spun rod bearings.

Ozark Lee
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Post by Ozark Lee »

It largely depends on what brand name the parts were in your "kit". I have an OEM parts replacement that is still doing well at 100k miles. I just replaced another one that lasted under 50k miles that had a bunch of URO branded parts.

...Lee
'94 850 N/A 5 speed
'96 Platinum Edition Turbo
Previous:
1999 V70XC - Nautic Blue - Totaled while parked.
1999 V70XC - RIP - Wrecked Parts Car.
1998 S70 T5
1996 850 N/A
1989 740 GLT
1986 740 GLT
1972 142 Grand Luxe

januwan
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Post by januwan »

+1 what Lee said
In my case only 24K because I bought FCP groton "kit"
januwan

hammertime
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Year and Model: '04 XC90, '07 XC70
Location: North coast
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Post by hammertime »

Thanks for the input. I did use the FCP kit, didn't realize the parts could be so inferior. So, I recently had a bout of trouble with misfires and generally rough running. Replaced plug wires cap and rotor and found a lot of moisture under the distributor cap. Ran fine for a couple days then started acting up again. Pulled the cap and rotor again and this time removed the disc that the rotor mounts to. Supprise, the cam seal was completely pushed out. Crank case moisture was condensing under the cap causing the misfires. After getting it all back together I check and I've got the classic smoking dipstick.
Curious, I've never heard the term "coked ring packs", what does that mean?
'04 XC90
'07 XC70
Zamboni Model 545 (my work vehicle)
Prev. '68 142, '96 850 GLT Sportswagon, '98 V70 AWD, '98 S70 T5, '00 V70 XC
first car ever owned: '74 BMW 2002tii

boosted5cyl
Posts: 1100
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Year and Model: '98 V70 T5, '99 S80
Location: St. Paul, MN
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Post by boosted5cyl »

Basically over time the piston rings get cludged up with carbon/coke and do not seal as well. As a result, more pressure escapes past them into the crankcase, raising the crankcase pressure beyond what the vacuum system can handle.....smoking dipstick ahoy.

Another thing to consider is a vacuum leak.
Not saying there isnt validity in what people are saying about the parts being toast, but it does no harm to consider other possible factors too.
'04 XC90 2.5T AWD (Angus) 134K.
'99 S80 T6 (Medusa) 214k. On borrowed time LOL
'98 V70 T5 (Vivienne). RIP @ 228K. Spun rod bearings.

wjhandy850
Posts: 128
Joined: 12 October 2009
Year and Model: 854 GLT 1997
Location: Ga

Post by wjhandy850 »

I did mine a couple of years ago, or less. I had made it a yearly thing to clean ptc,which has been staying clean. The last time I tried to clean ptc,the pipe shattered. I went with the ulitimate fix, and replaced the plumbing down low. Those items were hard as a rock. I used volvo hoses, and used regular clamps to get good tight fit..which seemed to not happen to well with the otto clamps.

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