Question about intake manifold on 1992 4.0

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Oct 4, 2013 | 06:26 PM

Gigemags05

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Joined: Oct 2013

Posts: 10

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Model: Cherokee

Question about intake manifold on 1992 4.0

Can anyone tell me what the port is on the intake manifold that is circled below?

I have a cj and swapped the 92 4.0 into it but cannot figure out what is supposed to go there. I have my MAP sensor in the second port from the left.

This isn't my jeep, just a google image.

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Oct 4, 2013 | 06:34 PM

Bustedback

CF Veteran

Joined: Feb 2010

Posts: 12,367

Likes: 23

From: Oroville, CA

Year: 1995

Model: Grand Cherokee

Engine: 4.0 with all of the noise and clatter

The is the vacuum source for the HVAC and cruise control. But anything that requires manifold vacuum can be put there.

Oct 4, 2013 | 06:38 PM

Gigemags05

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Newbie

Joined: Oct 2013

Posts: 10

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Model: Cherokee

Ok thanks for the quick response.

If I don't need any of that, is there a way to cap it off?

Or I guess it will work as the vacuum line to the charcoal canister?

Oct 4, 2013 | 06:40 PM

freegdr

CF Veteran

Joined: Mar 2010

Posts: 47,923

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From: Broward County Fl.

Year: 1989 xj sport 2dr

Model: Cherokee

Engine: 12 hole bosch Injectors

Quote:

Originally Posted by Gigemags05

Ok thanks for the quick response.

If I don't need any of that, is there a way to cap it off?

Or I guess it will work as the vacuum line to the charcoal canister?

You got ac its needed...