Smoke Post CCV Oil Drain Hose Replacment

J

jesseicp

Member
Trying to resolve a CEL and a shutter at stop lights that has become more frequent recently, I dug in and found my oil drain hose collapsed, full of sludge build up and with a hole in the center.

I'm trying to get the car to smog right now, and am in a race against my temp plate expiring, so I got some 3/8" vacuum hose from the parts store, rather than ordering and waiting for the actual part to come in. I installed the hose last night and drove about 15 miles, issue and CEL free, all city driving.

Today, I got on the freeway for the first time. Within a few miles, I started poofing smoke (oil), every couple of minutes. I drove about 30 miles and the car continues to do this, even when idling now.

What do you guys think? Continuing to clear excess sludge that might still be stuck down in the dipstick nipple, or is my CCV failed too?
 
jesseicp said:
Trying to resolve a CEL and a shutter at stop lights that has become more frequent recently, I dug in and found my oil drain hose collapsed, full of sludge build up and with a hole in the center.

I'm trying to get the car to smog right now, and am in a race against my temp plate expiring, so I got some 3/8" vacuum hose from the parts store, rather than ordering and waiting for the actual part to come in. I installed the hose last night and drove about 15 miles, issue and CEL free, all city driving.

Today, I got on the freeway for the first time. Within a few miles, I started poofing smoke (oil), every couple of minutes. I drove about 30 miles and the car continues to do this, even when idling now.

What do you guys think? Continuing to clear excess sludge that might still be stuck down in the dipstick nipple, or is my CCV failed too?
Click to expand...

Hi, to save any confusion I would replace the ccv & associated hoses with proper Bmw ones & take it for a long drive.
Rob
 
I would put ccv high on the suspect list too, but would help to state which model you have.
 
My bad, usually I'm much more thorough than that. It was a long day and I was exhausted. The car is a 2003 E85 2.5i.
 
UPDATE: Since you guys seem to be on the same wavelength as me, regarding the thought that it probably needs a CCV valve, along with the fact that I don't have any other equipment to test stuff, ie. manometer or smoke machine, I went ahead and ordered the full hose and CCV kit today.

On the other hand, the oil burning was a lot less today. I drove another 25 miles or so and it only blew two or three more plumes of smoke from the exhaust, though I haven't been back at freeway speeds. It also ran a lot better than it did yesterday, only stumbling during the times that it blew smoke.

It's going to be 5 or 6 days before I get the parts in, so it will be interesting to see what happens before then. I'll continue to drive it, as this is my daily driver. I'll post back and let. everyone know if settled down on its own or not. I'll more than likely install the new CCV and hoses when they come in, regardless of whether everything works fine. Although, if it works fine, I may order that water pipe that people talk about failing on the M54. If I'm not in a hurry anymore, I might as well kill two birds with one stone since the intake manifold has to come off for the CCV replacement.
 
Updating this for posterity:

To resolve this issue, I did end up replacing the CCV and all associated hoses. The main cause of the smoke, however, didn't come from an issue with the CCV system. It turns out that I had torn the o-ring during reinstallation of the dipstick guide. This was my first time pulling the guide and I followed some poor advice about how to put it back in. I was told that you need to use a block of wood pressed against the arm on the dipstick guide to hammer the guide back in. This pinched the o-ring and tore it.

For anyone reading this moving forward, the correct way to reinstall the dipstick guide is by placing the o-ring on the shaft first, lubricate the o-ring with a bit of oil, place the guide in its hole in the engine block and rotate it circularly while pushing down. Eventually you will feel it fall into place.
 
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