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      03-14-2017, 07:00 PM   #1
GogglesPisano
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N52 CCV oil return hose removal to access starter

In removing the intake manifold to access the starter, I'm having trouble disconnecting the oil return drain hose from the CCV attached to the bottom of the intake manifold on the 2006 N52 with the metal valve cover.

Can someone tell me how this connector disconnects? Do the gripper tabs slide forward or backward? Do you push or pull the hose while moving the tabs?



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      03-15-2017, 12:56 PM   #2
GogglesPisano
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I figured it out.

Push the hose down on to the dip stick tube to push the yellow part as far back into the black shell as it will go easily.

Use hose pliers to grab the yellow grippers *lightly* and pull up without pulling up on the black shell, or even holding the black shell down a bit.

It pops off without much force at all. The idea is use the motion which is the same as when pushing the hose on to the dipstick tube to connect it. The yellow part has to come up and spread apart into the openings in the black shell as the shell goes down.
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      03-15-2017, 01:34 PM   #3
conrad325i
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I broke the shit out of mine when I did that job haha
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      03-15-2017, 01:37 PM   #4
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Quote:
Originally Posted by conrad325i View Post
I broke the shit out of mine when I did that job haha
I wasn't in a rush so I was able to take a full day just to figure out this one connection.
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      03-16-2017, 04:46 PM   #5
doru
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I'd use a fuel/oil line disconnect tool like this:

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      03-16-2017, 06:38 PM   #6
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Quote:
Originally Posted by doru View Post
I'd use a fuel/oil line disconnect tool like this:

That's a good idea.
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      03-24-2017, 01:21 AM   #7
PhaseP
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+1

1/2 inch version of the tool is the correct one to use. It is the red one in the AutoZone set I have used.
Here is a demonstration of mine on the bench (I use the blue one on that video but correct one is the red one as I wrote):



It is reported by others kicking with a big flat screw driver sharply also removes it. What I can suggest is to place the tool in good by pressing with one screw driver. Then push the hose out with another flat screw driver at the section the tool has room on its flange.

The tool has to be pushed in all the way for it to work and has to be kept pushed in while disconnecting. As mentioned it spreads out the yellow tabs (old hoses have all black parts) to unlock from the tube's corrugation.

The hose has two O-rings inside, they provide good amount of friction, so need to push it out good.

One other reminder, spray some electrical cleaner spray inside the hose. It has a ball operated check valve at the bent of that connection. It would be good to clean the debris from there to make sure it functions good. If clean the ball would be rattling when shaken and if you blow into the tube from that connection, it should block air flow.
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