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General E46 Forum
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Old 09-18-2013, 01:04 PM   #1
dwsounddesign
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CCV time. Easy or hard?

Ok it's time to do my ccv cause it failed on me this morning when I stupidily drove 4 miles with the oil cap off (I know it was an accident) and now I have a ses light with bank 1 bank 2 and fuel mixture too lean codes. I checked for vacuum leaks and got one on one of the hoses coming from the ccv to valve cover. Also, now when I take off my oil cap it idles rough and makes a suction sound. I have taken off my throttle body and icv before. Super easy and fast for me. Really, takes 4 hours? Anyone here done it faster. I need as much feedback.


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Old 09-18-2013, 02:12 PM   #2
markusmarkus
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CCV time. Easy or hard?

What takes so long is removing all the crap so that you can get to the ccv. I recommend that you change the oil filter housing gasket at the same time as removing the housing provides more room to get to the ccv and it hoses. Also, make sure you flush out the dip stick tube and replace its grommet. Check for DIYs.


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Old 09-18-2013, 02:21 PM   #3
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I've done it in two hours and change. It's not that bad but routing one of the hoses HURTS and you will most likely end up looking like an emo person that cut up their arms.
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Old 09-18-2013, 02:26 PM   #4
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Took me 10 hours, but that was because of awkwardly placed bolts on the intake boots, I was doing the OFHG at the same time, so the fan, belts, alternator and all other **** needed to come out plus the tube to the dipstick gave me a very hard time.
Actual CCV was not hard at all. If I were to do just the CCV, I think 3 hours maximum would be enough.
Come to think of it, I might do it again because I see some oil droplets near CCV again.

Just make sure you have the car front as high as possible(ramps or jackstands), easy on your back. Else you will be walking like a camel with a hunchback.
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Old 09-18-2013, 02:30 PM   #5
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I haven't done it, but I recommend watching these videos in order before doing it. They will really really help.





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Old 09-18-2013, 02:38 PM   #6
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Only difficult part is mounting the vacuum hose on the oil separator.

Taking the intake manifold off might make it easier.
All you really need to do is connect the 2 pieces a few times while they're off the car, so you understand how it works.

The rest is straightforward assembly/dissasembly of misc. unrelated parts.

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Old 09-18-2013, 02:46 PM   #7
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I found that all of the original hoses were extremely brittle, Although I tried to get them to disconnect, in the end I just broke the hoses and snapped the keeper-rings off off and removed them that way. Use some caution when it comes to the nipped ends that connect to whatever that distribution rail is called on the intake manifold. Supposedly those nipples are somewhat fragile.
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Old 09-18-2013, 03:24 PM   #8
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Really, takes 4 hours? Anyone here done it faster. I need as much feedback.
If you're asking with this little confidence, it doesn't sound like you're going to be in the two hour club.

It's not that hard, but if you're watching the clock it's a good way to make a mistake. Take your time, be familiar with the instructions, and be patient. I found all of the job easy steps just strung together in one lengthy process.
A 6 on my scale.
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Old 09-18-2013, 03:36 PM   #9
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I need to do this and the upper power steering hose.
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Old 09-18-2013, 03:46 PM   #10
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^ Agreed with Stinger. Not hard, but tedious when you consider the entire process.

Tip on the hose from the CCV to manifold: Disconnect and drop the fuel breather valve from its perch and rotate the hose in place to the CCV while you feed it through the manifold - 30 seconds. The CCV itself must be in its area under the manifold but not bolted into place while you do this.

Some guys have had a hard time with this, but just take a step back whenever you get stuck or feel like you need to use force. I found that none of the job needed force, just some thinking when you do get stuck.

Other tips: lubricate the o-rings so they go on easier, and practice CCV/hose assembly while it's still out of the vehicle.

Took me 5.5 hours but that's with me labeling the connectors with paint marker (specifically for this purpose) and cleaning everything as they came out or went back in.
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Old 09-18-2013, 08:14 PM   #11
dwsounddesign
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CCV time. Easy or hard?

Ok I'm going to tackle this as it comes in the mail soon. I rather as well post a DIY.


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Old 09-18-2013, 08:26 PM   #12
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Way to go.
Gonna replace your rubber intake boots while you're at it?
Is your OFHG in good shape?
Clean your throttle body along with your ICV while you're in there.
Replace the gaskets for those if you clean them.

Kill lots of birds with one stone if you want with this project.
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Old 09-18-2013, 08:52 PM   #13
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I just did it to mine, took about 4 hours. Hook up the hoses to the CCV valve while the vale is not screwed in. The space is really tight and this will give you room to see where hoses go then place the valve with all hoses hook up in place. It makes the job faster if you watch plenty of vids before you do it.
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Old 09-21-2013, 11:49 AM   #14
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Re: CCV time. Easy or hard?

I had been dreading this job nyself. Reading a lot of diy, it seemed very difficult. After going through it, it actually wasnt that bad. Just takes time. Expect like people say at least 4 hours

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Old 09-21-2013, 12:01 PM   #15
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what is a CCV? do we really need it? cant we just plug it up?
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Old 09-21-2013, 12:09 PM   #16
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CCV time. Easy or hard?

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what is a CCV? do we really need it? cant we just plug it up?
You need to vent the blow-by gasses somehow. Otherwise you'll blow out your VCG or front/rear main seals.
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Old 09-21-2013, 12:39 PM   #17
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You need to vent the blow-by gasses somehow. Otherwise you'll blow out your VCG or front/rear main seals.
good point. thanks
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Old 09-21-2013, 12:46 PM   #18
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You need to vent the blow-by gasses somehow. Otherwise you'll blow out your VCG or front/rear main seals.
Wonder what they do when they set up an e46 to race.
Bet they don't vent the fumes back into the intake manifold.
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Old 09-22-2013, 08:24 AM   #19
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Buy the book.."Contortionists for dummies", have your chiropractors number handy, take 2 Aleve, have a fan blowing on you. The satisfaction of doing it yourself and not paying the stealership $900+ is well worth it.
DO the ofhg and the dipstick O ring and the oil filter cap O ring. No need to take the manifold off..I didn't. Hope you have small hands....good luck. Patience is key.
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Old 09-22-2013, 08:33 AM   #20
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CCV time. Easy or hard?

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Wonder what they do when they set up an e46 to race.
Bet they don't vent the fumes back into the intake manifold.
They eliminate it.

All cars have similar similar systems, but it's seems overly complicated and unnecessary on an e46. I'd be willing to bet it could be removed, and the intake vacuum plugged with no long term affects. I've done it on many other cars and never had an issue.


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