Stuck O2 sensor
CF Veteran
Joined: Aug 2009
Posts: 1,126
Likes: 30
From: Detroit, Michigan
Year: 1998
Model: Cherokee
Engine: 4.0
Did you try sticking a flathead screwdriver under the edge of the socket and undoing it while twisting the flathead? Like a drywall screw comes out?
Thread Starter
Junior Member

Joined: May 2010
Posts: 64
Likes: 1
From: North Carolina
Year: 1996
Model: Cherokee
Engine: 4.0 L V6
Has anyone ever tried drilling a hole in the sensor large enough to get a screwdriver or something through it and torque it out that way? Curious if that might work or if it would just tear it apart. Im letting it run for about 5 mins or so before trying a pipe wrench now. Still open to all suggestions.
CF Veteran




Joined: May 2012
Posts: 7,965
Likes: 964
From: Lost in the wilds of Virginia
Year: 1998 Classic (I'll get it running soon....) and 02 Grand
Model: Cherokee (XJ)
Engine: 4.0
*sigh*
Don't heat the sensor. Heat the mounting point. Apply big pipe wrench.
Pipe wrench. Not Vice-Grips.
Don't heat the sensor. Heat the mounting point. Apply big pipe wrench.
Pipe wrench. Not Vice-Grips.
CF Veteran
Joined: Aug 2011
Posts: 10,489
Likes: 24
From: Nor-Cal Coast
Year: 90,84
Model: Cherokee
Engine: 4.0,2.5
Mcguiver....Why not approach a muffler shop, (newO2, sensor in hand), and get an estament? Might be on par with the cost of the big easy out you might try next.
CF Veteran
Joined: Aug 2011
Posts: 10,489
Likes: 24
From: Nor-Cal Coast
Year: 90,84
Model: Cherokee
Engine: 4.0,2.5
Agreed. Don't heat, (expand), the problem, expand the hole it's screwed into. If you got all hot then cooled the sensor with Freon might help.
Last edited by DFlintstone; Mar 11, 2017 at 05:52 PM.


