Clean the carbon out for free!!!
Thread Starter
::CF Moderator::
Joined: Aug 2011
Posts: 43,971
Likes: 1,578
From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
CF Veteran
Joined: Mar 2012
Posts: 1,024
Likes: 2
From: Quebec
Year: 1996
Model: Cherokee
Engine: 4.0L
i'm going to remove the intake/exhaust manifold to install my header. is there anything i can do while the intake manifold is off? like manually clean the inside of the ports / the inside of the manifold itself (by soaking it or something?)
do the steam cleaning first and be amazed at how clean it is when you take it off.
CF Veteran




Joined: Jan 2014
Posts: 1,102
Likes: 364
From: Eustis, Florida
Year: 1996
Model: Cherokee (XJ)
Engine: 4.0
I just performed this cleaning and what a difference. Like tune up in a bottle...lol. It did throw the check engine light on for powertrain miss in cylinders 1 and 6. I cleared the codes using Torque. Engine is idling better then it ever has and runs great throughout the powerband. Thanks for the info!!
Thread Starter
::CF Moderator::
Joined: Aug 2011
Posts: 43,971
Likes: 1,578
From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
I just performed this cleaning and what a difference. Like tune up in a bottle...lol. It did throw the check engine light on for powertrain miss in cylinders 1 and 6. I cleared the codes using Torque. Engine is idling better then it ever has and runs great throughout the powerband. Thanks for the info!!



