P80 PCV System Repair on a Volvo 5-cylinder (-1998)

E_S · Post by **E_S** » 05 Feb 2012, 01:46

We've had some pretty low temperatures here the last days (about -25 to -30 degrees Celsius), and yesterday while driving, I noticed something happening. The car surged and missed, and then became normal again. After opening the hood, I could see the dipstick being blown out and some oil spill in the area. I guess the PCV system froze clogged, because I've never had any problems with it before. I will check and replace parts, but it takes some time to get them. Is there some kind of temporary quick fix that can be done so I can drive the car without fearing this happening again? Where did it most likely freeze?

JeffersV70 · Post by **JeffersV70** » 05 Feb 2012, 16:44

First things first, this site is a great resource for first time Volvo owners like myself, and I'd like to thank everyone here for making that so.

Second, I had an oil leak on my 98 V70 N/A with 90,000 miles which I traced back to my camshaft seal behind the distributor cap. After doing a little reading, I saw that this was normally attributed to a clogged pcv system. I replaced the seal, ran a little Sea Foam through the crankcase before an oil change, and then checked for positive pressure. I tested the oil dipstick tube using a balloon, once the engine was up to normal operating temperature. Thankfully the balloon didn't inflate. There was also no noticeable pressure at the oil fill cap. This car sat for awhile, being run infrequently, so I'm assuming the seal was just bad, verses being blown out of the seat due to positive pressure in the crankcase. Is there anything else I should check for? Obviously I don't want to risk blowing a RMS, and I'm hoping I can put off replacing the oil trap and hoses until it warms up a little more.

byeboy · Post by **byeboy** » 14 Feb 2012, 20:59

UPDATE:
I posted (above) my experiences doing the PCV on my '97 850R, but after I finished the job, my indicated MPG dropped by 2 MPG (to 22.7), and there continued to be some oil seepage around the fill cap (which led me to do the job in the first place).
I removed the fill cap, and carefully removed the gasket and turned it over....no more seepage!...Also, and I'm sure this had nothing to do with the gasket... my MPG is back up in the 24 MPG range, which is where it always was before...I think the computer had to go through a learning curve after being disconnected for the five hours the job took. 'took it a couple hundred miles to get there, however.

Now I've just developed the dreaded "Heavy Gas Fume Smell" after a fill up...real heavy...so I've just been putting 5 gallons at a time in until I get to that (no signs of leaking or staining on the tank from under the car). I had my indy put it up on the rack so we could visually inspect the fuel lines, filter, etc...also checked under the hood to make sure the FI return line was not leaky.

Then on to those pesky Delta Links!

Post by **LamboSE5** » 27 Feb 2012, 08:52

Just wanted to ask, do I have to use a new intake manifold gasket? I did this job on another volvo that I recently stripped and I have it's PCV here in a box - including the new intake manifold gasket that the kit came with from FCP.

It saw about 4-6 months of use if I remember. Can I re-use that?

Post by **jblackburn** » 27 Feb 2012, 19:59

Yeah, I re-used mine the 2nd time around and it worked fine.

Post by **LamboSE5** » 29 Feb 2012, 00:23

Cool - Thanks.

aisrael · Post by **aisrael** » 12 Mar 2012, 18:36

I just recieved my IPD PCV kit for my wife's 99 V70 NA. Do I need a special tool to disconnect the fuel line? Do I really need to remove the injectors as the Haynes manual tell me to do?

Thanks

Aaron

Post by **jblackburn** » 13 Mar 2012, 00:10

You'll need something like this for the fuel line:
http://www.harborfreight.com/6-piece-fu ... 97576.html

You do NOT need to remove injectors. Just swing the whole manifold up as a piece like I did.

aisrael · Post by **aisrael** » 17 Mar 2012, 18:46

I just completed the PCV system repair on my 99 V70 NA. I did learn that the injectors must come of to feed the fuel line and breather tube through the manifold. I used the IPD kit for this repair and I noticed that the hose at the bttom of the oil seperater did not have clamps like the OEM style. Will this be an issue later down the road or it seal corectly?

Also, I now have an exhaust leak because the intermediate pipe fell out of the ball flange. Is there an inexpensive fix (the exhaust looks ok) or do I have to replace the entire exhaust system? How fun is it to do on the ground?

Also, thank you for the posts on how to do this PCV fix.
Thanks

Aaron

volvo-owner · Post by **volvo-owner** » 31 Mar 2012, 20:43

Per Haynes Manual: Torque specification for fuel rail to intake manifold is 88 ft-pounds plus 75 degrees. Did any one do it that way? It seems high compared to lug nuts 81 ft-pounds.

P80 PCV System Repair on a Volvo 5-cylinder (-1998)

Re: PCV System Repair on a Volvo 5-cylinder