Hard Pull 1998 C70 T5 = smoke from vents

JxKenny · Post by **JxKenny** » 08 Apr 2012, 20:58

So I have had my 1998 volvo c70 for about 2 weeks. 108k, I did a oil change, replaced the starter, and fixed the battery terminals (bad connection). Tonight I went past 5k RPMs, full throttle, and the car pull fantastic, very pleased. What I was not pleased with was that smoke started coming out of the air vents and my car always has a unique smell to it, i think it smokes alot just not able to see it. PCV? Im aware that I most likely need to clean my PCV but I need to know some things first (Im very new to volvos). How long will it take me to do the PCV cleaning, Im pretty good with cars, the starter took me 3.5 hours and i took out all of the hoses and fan. I saw the guide to PCV cleaning on this site but Im having computer trouble and my phone sucks and is not loading the thread, i will print it out at college. What brand and cleaner should i use to clean everything, I know of carb cleaner, anything else? Should I put any good upgrades while I have my intake manifold off that is worth it (looking for performence)?

Im on my phone and having trouble searching these threads so im sorry if this is all very redundant among these threads, which i am sure it is.

Post by **Ozark Lee** » 09 Apr 2012, 08:51

There are those that have "cleaned" the PCV system but I look at it as a replacement job. By the time the PCV is due for servicing the hard plastic lines are so brittle that they will just shatter when you try to move them.

...Lee

Post by **MoVolvos** » 09 Apr 2012, 14:43

Smoke from vents smells like a Turbo oil leak especially after the high revs.

Blessings,
BKM
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Post by **jblackburn** » 09 Apr 2012, 15:26

Check out both!

The turbo oil drain is a common problem that can spray oil all over the bottom of the turbocharger and exhaust manifold. Likewise, a clogged PCV system or leaky rear cam seal can drip oil down on top of the hot exhaust.

Post by **MoVolvos** » 09 Apr 2012, 16:18

jblackburn wrote:Check out both!

The turbo oil drain is a common problem that can spray oil all over the bottom of the turbocharger and exhaust manifold. Likewise, a clogged PCV system or leaky rear cam seal can drip oil down on top of the hot exhaust.

Is there a DYI Turbo replacement tutorial anywhere with pictures or a picture of the oil drain?

Blessings,
BKM
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Post by **jblackburn** » 09 Apr 2012, 16:23

It's easy on a front-wheel drive model and will take you about 30 minutes to replace the gasket - if even!

Here's a post on the matter. There's some pictures I put up in the linked topic in the first post.

https://www.matthewsvolvosite.com/forums ... =1&t=41451

Post by **jimmy57** » 09 Apr 2012, 20:20

Is it oil smell smoke or is it fog?
The ECM will shut off compressor for 20 seconds on hard throttle acceleration and when it comes back on the vents will emit fog for a few seconds in humid cooler weather.

JxKenny · Post by **JxKenny** » 10 Apr 2012, 19:01

More of a oil smell. I might do seafoam for now and in about a week and a half replace the pcv and check for a turbo leak.
Will seafoam help the pcv?

Post by **jblackburn** » 10 Apr 2012, 19:28

Not if all the hoses are plugged like I think they are. Save the Seafoam for after the system is changed. Run that through and change your oil after both are done.

JxKenny · Post by **JxKenny** » 10 Apr 2012, 22:17

Id the 137$ for the ipd PCV kit my best bet? Or is there a cheaper alternative that i should use?