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bmckim
12-12-2012, 01:09 PM
Hey guys, I am a little confused with the convo I just had with my indy and wanted to see what you guys thought.

My baby had a rough idle, was burning some smoke but no codes, so my indy installed a new PCV plate.

After I got it back, it then threw p1159, p1161, and a misfire code for cylinder 6. The cylinder blew the spark plug out of the head. They TimeSert'd the head, changed the coil pack, replaced all the plugs, and replaced the CPS because it threw the code for that too while it was there.

Now that I got it back, it seems like the idle is a bit rough (Not nearly as bad, and it may be because I am hypersensitive to it now that I have it back) but it also smoking on startup most days, and it is burning something while driving as I can smell it in the cabin when stopped at a stop light. It also has thrown p1159 and p1161 again.

My indy thinks the two issues I have now are unrelated. He thinks the codes are because of the MAF because the PCV has been replaced, and the smoke is because of the Valve Steam Seals because he replaced the gaskets when he did the PCV plate.


Does this make sense? Thanks so much for your help.
OptimusGlen
12-12-2012, 01:37 PM
Valve stem seals can definitely cause smoke on start up.

As far as the codes go, throwing parts at a problem is a good way to spend unnecessary money. I'd suggest doing a smoke test and looking for intake leaks before buying new parts, unless your indy can accurately test the MAF and see that it's no good.

simple smoke tester
http://farm5.staticflickr.com/4051/4706547342_0e830e861b_z.jpg
AlexDj
12-12-2012, 01:39 PM
It could be Maf see if there's anyone local to u would let u borrow theirs and valve stems could do that also check for oil leaks I had oil leak from the o-ring on pcv where osv pipe connects.
Good luck
bmckim
12-12-2012, 04:02 PM
Valve stem seals can definitely cause smoke on start up.

As far as the codes go, throwing parts at a problem is a good way to spend unnecessary money. I'd suggest doing a smoke test and looking for intake leaks before buying new parts, unless your indy can accurately test the MAF and see that it's no good.


It definitely seemed like throwing parts is what he wanted to do. I think I am going to have a smoke test done first.

As for the other smoke, could it be oil left over from before the PCV was changed?
IcemanBHE
12-12-2012, 05:32 PM
Yes. Could take weeks to burn it out...

( I yank the manifold to clean it out when I do this)
bmckim
12-13-2012, 06:08 AM
Yes. Could take weeks to burn it out...

( I yank the manifold to clean it out when I do this)

I figured they did that when they replaced it, but maybe not (hopefully they didn't completely clean it out). Is it possible that the plate they replaced it with was bad? It seems like the symptoms are all the same you would have if the pcv was bad.
JeremyL
12-13-2012, 10:43 PM
I replaced my PCV about a month ago and my car is still smoking as well. I think I am about to try and do what some of these 5 series guys do:

http://forums.bimmerforums.com/forum/showthread.php?t=1610177&page=3
IcemanBHE
12-14-2012, 12:41 AM
I take them off and stand them up overnight to drain out. Then I BrakeCleen them out and wipe dry.
kblaze325
12-14-2012, 12:17 PM
There is a second OSV/PCV its in the front of the motor behind the upper timing chain cover and its called the cyclone valve, and if your still having the same issues that you were before you changed the OSV on the back of the intake its more than likely the cyclone valve, and it is not a easy fix. I just went through the whole dip stick sucking issue and lite smoke on start up, everyone told me it was burn off after I changed the rear intake OSV but it never went away so I researched and found this second OSV basically and I had to tear the front of my engine apart to get at it but now everything is fixed, no gurgle no smoke no funny sounds, all it is, is a plastic funnel shaped part that can break easily and fail from heating and cooling own all the time.
bmckim
12-14-2012, 12:19 PM
There is a second OSV/PCV its in the front of the motor behind the upper timing chain cover and its called the cyclone valve, and if your still having the same issues that you were before you changed the OSV on the back of the intake its more than likely the cyclone valve, and it is not a easy fix.

I was thinking that could be it, I know the part is cheap, any idea how many hours in labor I would be looking at?
kblaze325
12-14-2012, 12:27 PM
I was thinking that could be it, I know the part is cheap, any idea how many hours in labor I would be looking at?

For me I have about 6yrs of working on BMW's and all the tools, this is my first e38 but it is pretty much universal. I took my time and as I previously stated I had to tear down the front of my motor (ie) cooling system, upper timing chain cover, and remove the timing chain following the DYI posted in the forum, it would have been easier of I removed the core support and front bumper but I didn't. All in all it took from a Friday Morning to Sunday nite to do it in my garage. Probably about 6hrs a day with plenty of breaks. Mind you like I said this is my first e38 but if you have more experience or a good indy it might take less time.
bmckim
12-14-2012, 07:57 PM
For me I have about 6yrs of working on BMW's and all the tools, this is my first e38 but it is pretty much universal. I took my time and as I previously stated I had to tear down the front of my motor (ie) cooling system, upper timing chain cover, and remove the timing chain following the DYI posted in the forum, it would have been easier of I removed the core support and front bumper but I didn't. All in all it took from a Friday Morning to Sunday nite to do it in my garage. Probably about 6hrs a day with plenty of breaks. Mind you like I said this is my first e38 but if you have more experience or a good indy it might take less time.

Ouch. Lets hope it is just burning off the residual...
TxDarth
12-14-2012, 08:21 PM
I hope so too - but doubt it is valve guide seals. Not a common problem on these cars unless mega miles or badly overheated.

Some people have over 200K miles and no guide problems.
bmckim
12-14-2012, 08:23 PM
I hope so too - but doubt it is valve guide seals. Not a common problem on these cars unless mega miles or badly overheated.

Some people have over 200K miles and no guide problems.

It does have 201K...
bimmernuwb
12-15-2012, 02:45 AM
I replaced my PCV about a month ago and my car is still smoking as well. I think I am about to try and do what some of these 5 series guys do:

http://forums.bimmerforums.com/forum/showthread.php?t=1610177&page=3

i was just about to post that. it took me forever to find that but what a great idea. i was wondering on how to do this effectively and that would be the best way.

the only thing that needs to be addressed is the drainage. i would do a one way gravity valve or as they said a 12v solenoid.