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XJ Ask the Question Thread
Moderator of Jeeps
Joined: Jul 2011
Posts: 21,029
Likes: 3
From: Frederick, MD from Cleveland, OH
Year: 1993 YJ Wrangler
Engine: 4.0 I6
In the end, it depends on the overall condition of your Jeep as well as what type of testing your state does.
Herp Derp Jerp

Joined: Nov 2011
Posts: 18,251
Likes: 17
From: Parham, ON
Year: 1999
Model: Cherokee
Engine: 4.0L OBD-II
Seasoned Member
Joined: Oct 2012
Posts: 486
Likes: 2
From: Long Island, New York
Year: 1996
Model: Cherokee
Engine: 4.0L I6 (The best engine ever made)
Moderator of Jeeps
Joined: Jul 2011
Posts: 21,029
Likes: 3
From: Frederick, MD from Cleveland, OH
Year: 1993 YJ Wrangler
Engine: 4.0 I6
Member
Joined: Jan 2010
Posts: 127
Likes: 0
From: West Georgia
Year: 1987
Model: Cherokee
Engine: 4.0 I6
::CF Moderator::
Joined: Aug 2011
Posts: 43,971
Likes: 1,578
From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
::CF Moderator::
Joined: Aug 2011
Posts: 43,971
Likes: 1,578
From: Prescott, Az
Year: 1990
Model: Cherokee (XJ)
Engine: 4.0
Member
Joined: Jan 2010
Posts: 127
Likes: 0
From: West Georgia
Year: 1987
Model: Cherokee
Engine: 4.0 I6
Do not mean to intrude, but my jeep has a loss of power at about 40 mph in that it is slow or difficult to accelerate. Exaust is smooty and it is burning fuel bad. Went through a half a tank in three days riding around town, but not really going any distance. Thanks for any assistance or guidance you can give.
Herp Derp Jerp

Joined: Nov 2011
Posts: 18,251
Likes: 17
From: Parham, ON
Year: 1999
Model: Cherokee
Engine: 4.0L OBD-II
When was the last tuneup that replaced air filter, spark plugs, wires, distributor cap, and rotor? If you don't know, then it's been too long.
Is there a whistling sound under the hood when the engine runs?
Is the little plastic tube that runs from the throttle body to the MAP sensor on the firewall intact?
Ever replaced the oxygen sensor?
Good grief... it takes three generations in your family to install a stroker in an MJ?!!?




