How I can disconnect two wire harnesses on EVAP Canister?

Tiny
HARRY HAYASHI
  • MEMBER
  • 2005 NISSAN XTERRA
  • V6
  • 4WD
  • AUTOMATIC
  • 150,000 MILES
Hello,

One is System Pressure Sensor Harness and other is Vent Control Valve Harness. I can't figure out how to disconnect these wire harness or unlock it. Any tip is greatly appreciated. Thank you so much for your help.
Thursday, August 5th, 2021 AT 6:08 PM

3 Replies

Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
These connectors have a lock on them so you are going to have to release that and then pull it straight off.

Take a look at this video. I get that this is a headlight bulb but it appears this is the same type of connector with a nub and lock on it that you have to lift the plastic lock and and pull the connector off.

https://www.youtube.com/watch?v=SzS1YYmKP3M

I also attached the info below from the manual that is not very helpful.

However, I also attached some pictures of the valve that shows the connector and the lock that you need to lift the lock over to remove it. Please take a look at this and let me know if you still can't get it. If you can't then can you get some pictures of the connector and we can figure out how to get it off?

Thanks
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Friday, August 6th, 2021 AT 7:47 PM
Tiny
HARRY HAYASHI
  • MEMBER
  • 2 POSTS
Hello,

Thank you so much for your reply.
I search around the video on YouTube and I got an idea to disconnect these.
However, I still can't disconnect these harnesses.
I splayed WD40 and push the tub so hard and pulled it but it is impossible to disconnect as it's stuck so hard.

When I watch the video on a similar Nissan vehicle they look easy to disconnect.
https://www.youtube.com/watch?v=PcWn4bteNCk

I don't know why my Xterra's wire harnesses are stuck so hard.
Do you have any suggestions for me that I may be doing something wrong?

I attached 2 pictures. These are the same as my Xterra harness.

I applicate any suggestions you can give to me.
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Wednesday, August 11th, 2021 AT 9:35 PM
Tiny
KASEKENNY
  • MECHANIC
  • 18,907 POSTS
Okay. I think I know the issue. You can't see it in that video but he put a pocket screw driver in the connector to release the lock and then that allows him to pull without having to push the connector in as well as pull.

So just slide a flat head pocket screwdriver in the lock to press it down almost like a wedge and then hold the wires and connector in you hand and pull and wiggle and it should release.

It is going to be hard because of all that dust and dirt all over the connector. That is on the inside as well and has actually cause the connections to stick.

Once you get them apart you are going to want to put dielectric grease in the connector so that it helps this not happen again.

Let me know if you still have questions.

Thanks
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Thursday, August 12th, 2021 AT 7:03 PM

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