Eng. Code P0118... - JeepForum.com
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back JeepForum.com > Models > Jeep Cherokee & Comanche Forums > XJ Cherokee Technical Forum > Eng. Code P0118...

FS: 2007-2013 Jeep Wrangler "HALO" Angel Eye KitFS: Wranger BRIGHT License Plate LED! Just $3! Great valueBestop Tinted Window Kits - Promo Code CLEANKIT

Unread 11-30-2006, 02:24 PM   #1
Registered User
1999 XJ Cherokee 
Join Date: Aug 2005
Location: Valdosta, Ga
Posts: 155
Eng. Code P0118...

My XJ (99 4.0L 95,000mi) started running really crappy the past 3 three days (Dieing and taking 5 or 6 long cranks to start after dieing, studdering on accel, and high idle) and my check engine light came on, When i ran the codes i get 'P0118 Engine coolant temp circuit high input'... Besides what it says what is it talking about? How would i check it? and Would that make the jeep stall, studder and then sometimes die? I just receltly found a wired harness that was burned thru about 6 wires but i repaired them, the right way, Also i just recently replaced my Cap, Rotor, Plugs and Wires... Anyone have this problem and know a good solution?

1999 XJ 3.5 RE Super Ride, 31x10.5 Re-treads RE heavy duty track bar, RE Shackles, TBM...

Tire size, its not how big they are, its where you can make them take you...
xb12r is offline   Reply With Quote Quick reply to this message
Unread 11-30-2006, 02:26 PM   #2
Registered User
Join Date: Dec 2004
Location: North Jersey
Posts: 2,743
There's a probem with the coolant temp sensor or associated circuit. Yes, it would cause the symptoms you're describing. The sensor is located in the thermostat housing. Visually inspect the wires, follow them back, be sure that they don't run through the bundle you repaired. If the wiring looks OK, replace the sensor.

I believe you can turn the key on (engine off), disconnect the sensor, and use a DVOM to probe the terminals on the sensor connector. You should have 5 volts there. If you have more tha 6 volts, there's a short somewhere.
1998 VW GTI 2.0
anony91xj is offline   Reply With Quote Quick reply to this message

Quick Reply

Register Now

In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.

Email Address:


Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.

Thread Tools

Suggested Threads

Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.