Working on my XJ & running with some seafoam. Now, added to gas - Check. Added to oil - Check. Going with the 3rd part - turning th ejeep on, slowly pouring seafoam into the brake booster cable or the PCV thing. I CANT FIND EITHER!!

I've searched and found posts on here that say there is no PCV (I've a 91 Limited 4x4. 4.0 I6)

I've seen the pic of where the brake booster ****s supposed to be. I don't have it.

To the back of my engine bay, driver side behind the air box is the little white tub for the brake fluid. Next to it is a black ball thingy with a small cylinder next to it that has wires that come out of it. I don't see any hoses though.

PLEASE HELP!!!!

 

Most people pour it into the hose that plugs into the brake booster,

 

I dont see a brake booster.

 

It's the big round black thing that the brake master cylinder is bolted to , There will be a vacuum hose coming off of it.

 

https://www.cherokeeforum.com/member...nt-engine-bay/

That big black thing?

 

Yes

 

Theres no hoses coming off of it.

 

Some XJs have electric pumps instead of brake boosters. If you don't have a brake booster and your brakes work, you've got the pump.

 

https://www.cherokeeforum.com/member...3-no-hoses.jpg

 

If I don't have a brake booster, how or where can I put the seafoam in to clean the top end as described here https://www.cherokeeforum.com/f2/sea...estion-100475/ by Trans_am7935

 

The other method is to remove the air intake hose and ssssllloooowwwllllyyyy pour some directly into the throttle body. There's a video or two of some guys doing this on youtube. Make sure to keep the RPMs up to avoid stalling

 

I wouldn't try that method it may take out a sensor

 

There should be an unused nipple on the intake manifold, remove the plug from the nipple and put a hose on it. Then just put the plug back on when you're done.

 

Yeah I wouldn't do that method either... In your case, I would just do oil and gas and call it a day. What you can do is take off the throttle body and give it a good cleaning. But yeah, I wouldn't pour seafoam in it

 

Seafoam claims it will not burn out sensors.