All I know is it has a vacuum like and a connector coming into it and it has GM embossed in the top of it

 

MAP sensor.

 

X2. MAP sensor. Where is the vac line at? Is it behind the plug? I was thinking on my old 90 it was to the right of the plug.

 

The vac line is to the left of the plug and slightly behind it if your looking at it from the front of the jeep

 

John

 

You weren't specific enough. I think Frank gets the 10 points

 

LOL...........................I was thinking "Vlad"

 

That would be the "****".

 

Im confused? What's happening right now?

 

We're all screwing off waiting for you to respond with why you asked what it is.

 

Ahh. Sorry. I was trying to track down vacuum leaks and such. The reason I asked is because im still trying to track down all these vacuum leaks and I saw that part with a vacuum line coming off of it and was curious what it was. Does that have anything to do with the transmission? Like shifting wise?

 

Nothing to do with the tranny or shifting.

Perhaps you could share with us the issue you are experiencing?

 

Well, intermittently the jeep will down shift like its supposed to, but when it comes time to upshift, its like it wont find 2nd, 3rd, or overdrive. It will find 1st if I slow down enough but after that it wont come out of first until I put it in neutral, shut it off, start it back up, and put it in drive again. Then it will drive just fine again.

 

Thanks for your post.

We’re here to help but you must understand that all Jeeps are not the same.
In order for us to give you more accurate advice and help, we must know the following, along with detailed information as to the symptoms/problems etc:

Year
Model
Engine
Transmission
Transfer case


Click on the pink link in my signature if you're not on the app. If on the app, click on this link.

https://www.cherokeeforum.com/f51/cr...x-tips-153657/

87 or 88, do posts 1, 2, 3, 8. and 10.

89 or 90, post 2 doesn't apply.

 

Sorry, it's an 87 Cherocar pioneer with an 4.0/ aw4 / and I'm not 100% sure on the tcase. I know it's part time 4wd.