Problems after rebuild

Reply Subscribe

Thread Tools

Search this Thread

Jun 21, 2015 | 09:08 PM

#16

Jeep Driver

Banned

Joined: Jan 2014

Posts: 1,054

Likes: 4

Model: Cherokee

BTW.....

I'm with the others here, massive vacuum leak.

You need to take the intake off, install a new gasket.

Take your time and do it right.

Jun 21, 2015 | 09:10 PM

#17

Jeep Driver

Banned

Joined: Jan 2014

Posts: 1,054

Likes: 4

Model: Cherokee

Quote:

Originally Posted by DFlintstone

I edited post #7. Agreed with all/ massive vacuum leak from somewhere. IIRC there ARE aftermarket headers that have a thicker flange than the intake, so the bolts don't pull the intake in tight.....

Correct, as was with mine.

I modified the washers.

Jun 21, 2015 | 09:13 PM

#18

DFlintstone

CF Veteran

Joined: Aug 2011

Posts: 10,489

Likes: 24

From: Nor-Cal Coast

Year: 90,84

Model: Cherokee

Engine: 4.0,2.5

Quote:

Originally Posted by Bouwenca

it's just a hole into the manifold, could that cause it?

Yes. A "hole into the manifold" is also called a vacuum leak. Even very small ones are a problem.

Thanks JD, was only 99% sure!

Last edited by DFlintstone; Jun 21, 2015 at 09:16 PM.

Jun 21, 2015 | 09:15 PM

#19

Bouwenca

Thread Starter

Junior Member

Joined: Jun 2015

Posts: 33

Likes: 0

Model: Cherokee

Quote:

Originally Posted by Turbo X_J

1) The brake booster is the larger of the two hoses on the intake manifold.
2) Were the intake manifold ports the same size?

As far as I know they were the same size, I had them side by side and didn't see a difference.

Jun 21, 2015 | 09:19 PM

#20

Bouwenca

Thread Starter

Junior Member

Joined: Jun 2015

Posts: 33

Likes: 0

Model: Cherokee

When I took the throttle body cables off, I broke one. When I ordered a new one it was called a brake booster cable. It runs from the TB to the left side of the engine to a little black circle thing with what looks like vacuum lines attached. Do you know what that does?

Jun 21, 2015 | 09:23 PM

#21

Bouwenca

Thread Starter

Junior Member

Joined: Jun 2015

Posts: 33

Likes: 0

Model: Cherokee

Quote:

Originally Posted by DFlintstone

Yes. A "hole into the manifold" is also called a vacuum leak. Even very small ones are a problem.

Thanks JD, was only 99% sure!

I'll find a way to plug that. I was wondering if it was a problem or not, because as far as I could tell the old one was open.

Jun 21, 2015 | 09:24 PM

#22

Jeep Driver

Banned

Joined: Jan 2014

Posts: 1,054

Likes: 4

Model: Cherokee

Quote:

Originally Posted by Bouwenca

Have you got cruise control?

Jun 21, 2015 | 09:25 PM

#23

Bouwenca

Thread Starter

Junior Member

Joined: Jun 2015

Posts: 33

Likes: 0

Model: Cherokee

Quote:

Originally Posted by Jeep Driver

Have you got cruise control?

I'm fairly certain I do.

Jun 21, 2015 | 09:27 PM

#24

DFlintstone

CF Veteran

Joined: Aug 2011

Posts: 10,489

Likes: 24

From: Nor-Cal Coast

Year: 90,84

Model: Cherokee

Engine: 4.0,2.5

Plug the hole. One cable goes to your right foot, the other to the trany. Do make sure the "not a kickdown" cable to the trans isn't holding the throttle open. There is a button on the top of that cable housing right where the cable comes out. I set mine with just a scoch of play. Not pulling but not loose ether.

EDIT Oh! Yea, I have a third from my cruze to the same bracket that the throttle cable goes to. My Cruse cable is slack.

Last edited by DFlintstone; Jun 21, 2015 at 10:10 PM.

Jun 21, 2015 | 09:30 PM

#25

Jeep Driver

Banned

Joined: Jan 2014

Posts: 1,054

Likes: 4

Model: Cherokee

Maybe you can post pics of what you have so that others can help you.

How many cables do you have?

Jun 21, 2015 | 09:37 PM

#26

Bouwenca

Thread Starter

Junior Member

Joined: Jun 2015

Posts: 33

Likes: 0

Model: Cherokee

Quote:

Originally Posted by Jeep Driver

Maybe you can post pics of what you have so that others can help you.

How many cables do you have?

I would but I'm at work. I have three, one to the transmission, one to the accelator and the third to the thing I was talking about.

Jun 21, 2015 | 09:39 PM

#27

Bouwenca

Thread Starter

Junior Member

Joined: Jun 2015

Posts: 33

Likes: 0

Model: Cherokee

Quote:

Originally Posted by DFlintstone

Adding that to the list of stuff to try

Jun 21, 2015 | 10:14 PM

#28

DFlintstone

CF Veteran

Joined: Aug 2011

Posts: 10,489

Likes: 24

From: Nor-Cal Coast

Year: 90,84

Model: Cherokee

Engine: 4.0,2.5

My third cable to the cruse control connects there on the same bracket as the throttle cable. It is slack, no tension there. Pretty sure there is no such thing as a brake booster cable.

Jun 21, 2015 | 10:19 PM

#29

Jeep Driver

Banned

Joined: Jan 2014

Posts: 1,054

Likes: 4

Model: Cherokee

Quote:

Originally Posted by DFlintstone

My third cable to the cruse control connects there on the same bracket as the throttle cable. It is slack, no tension there. Pretty sure there is no such thing as a brake booster cable.

That's what I was getting at....it's the cruise cable he broke.

What I'm wondering is if he has them connected to the correct locations?

If so........and it's not a problem at the TB......he's got a problem at the gasket.

Jun 21, 2015 | 10:20 PM

#30

Jeep Driver

Banned

Joined: Jan 2014

Posts: 1,054

Likes: 4

Model: Cherokee

Did you pull your injectors out?

If so.............Orings?????

Reply Share

First
Prev
2 / 4
Next
Last