Engine temperature gauge ...is toast...!!
My Temperature gague has stopped working when its cold outside , Jeep has to warm up then i turn off engine and restart before it works.... Now what will the dealer tell me it is? Can any one guess? I bet I get a bunch of BS and they wont be able to tell me because when i go there i will turn Jeep off and when they restart it its going to work fine..... WTF.....Any one else have this problem yet??
Don't shut off the jeep 
Just drive the jeep up to the service doors bring the service manager out
and show him the gauge then shut it off iin front of him then restart it and he will see.
Most service guys will also take your word for it.. and try and solve the problem..It's under warranty so they can bill Crysler for the time taken to
dia. and fix it.
All The Best
Zeb

Just drive the jeep up to the service doors bring the service manager out
and show him the gauge then shut it off iin front of him then restart it and he will see.
Most service guys will also take your word for it.. and try and solve the problem..It's under warranty so they can bill Crysler for the time taken to
dia. and fix it.
All The Best
Zeb
I believe I read on the forum that the gauges were controlled by the computer. Might try disconnecting the ground on the battery for a minute or two that might clear the problem before you go to the dealer with it.
keep in mind dealers only get 25 to 35% of what shop rate is when paid by chrysler to do warranty work
a **5*** star dealer avoids warranty work cause they are usually so busy making regular coin, it would be a productive loss for them. go to a non 5 star and they will gladly do it, especailly if they are a slow shop easy billable coin.
but they will likely blame ur modifications good luck
ps i would try a computer flash
disconnect neg and positive wait 10minutes touch the pos and neg leads together and then re-mount on battery. just to see what happens.
a **5*** star dealer avoids warranty work cause they are usually so busy making regular coin, it would be a productive loss for them. go to a non 5 star and they will gladly do it, especailly if they are a slow shop easy billable coin.
but they will likely blame ur modifications good luck
ps i would try a computer flash
disconnect neg and positive wait 10minutes touch the pos and neg leads together and then re-mount on battery. just to see what happens.
dead on target ther Wraith, dealers make next to nothing on warranty work, so big dealerships hate to do it, smaller ones usually dont mind.
Not sure if restarting the computer would help or not. How long do you have to warm up the vehicle before it starts up. Are you starting it up with key or a remote start, or does it happen with both means of starting up.
Cheers
JKDad
Not sure if restarting the computer would help or not. How long do you have to warm up the vehicle before it starts up. Are you starting it up with key or a remote start, or does it happen with both means of starting up.
Cheers
JKDad
Sounds like time for a new gauge cluster, mine had the same problem and it was the cluster; try to work the parts manager, have him call Flight Systems and see if they have any clusters in stock, if not have him call everyday, then you can take them the Jeep when they are able to get one programed and sent to the dealer overnight. Otherwise they will want to keep the Jeep until they can get a cluster in to replace the bad one, it has to do with milage and warranty. It took them 3 weeks to get the one for my Jeep. The parts manager called me when Flight Systems had some, I took them the Jeep, they ordered it and I had my Jeep back next day... Good luck
Sounds like time for a new gauge cluster, mine had the same problem and it was the cluster; try to work the parts manager, have him call Flight Systems and see if they have any clusters in stock, if not have him call everyday, then you can take them the Jeep when they are able to get one programed and sent to the dealer overnight. Otherwise they will want to keep the Jeep until they can get a cluster in to replace the bad one, it has to do with milage and warranty. It took them 3 weeks to get the one for my Jeep. The parts manager called me when Flight Systems had some, I took them the Jeep, they ordered it and I had my Jeep back next day... Good luck
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Interesting blog in the forum from another Jkr regarding the temp gauge and how test your instrument panel
If the instrument cluster fails to receive an engine temperature message, it will hold the gauge needle at the last indication for about five seconds or until the ignition switch is turned to the OFF position, whichever occurs first. After five seconds, the cluster will move the gauge needle to the low end of the gauge scale. If yours is at the low end, the cluster has a good chance of being OK, otherwise, it may be off scale.
When it is not reading correctly, try wiggling the wires at the temp sensor while someone watches the gauge.
An actuator test of the instrument cluster might be in order.
Successful completion of the actuator test will confirm that the instrument cluster is operational. However, there may still be a problem with the CAN or LIN data bus, the Powertrain Control Module (PCM), the Totally Integrated Power Module (TIPM), the Controller Antilock Brake (CAB), the All-Wheel Drive Control Module (AWDCM), the Occupant Restraint Controller (ORC), the compass module, the Sentry Key REmote Entry Module (SKREEM) (also known as the Wireless Control Module/WCM), or the inputs to one of these electronic control modules. Use a diagnostic scan tool to diagnose these components. Refer to the appropriate diagnostic information.
1. Begin the test with the ignition switch in the OFF position.
2. Depress the odometer/trip odometer switch button.
3. While still holding the odometer/trip odometer switch button depressed, turn the ignition switch to the ON position, but do not start the engine.
4. Release the odometer/trip odometer switch button.
5. The instrument cluster will simultaneously begin to illuminate all of the operational segments in the VFD units, and perform a bulb check of each operational LED indicator. The VFD segments and LED indicators remain illuminated as each gauge needle is swept to several calibration points and back. If a VFD segment or an LED indicator fails to illuminate, or if a gauge needle fails to sweep through the calibration points and back during this test, the instrument cluster must be replaced.
6. The actuator test is now completed. The instrument cluster will automatically exit the self-diagnostic mode and return to normal operation at the completion of the test. The actuator test will be aborted if the ignition switch is turned to the OFF position, or if an electronic vehicle speed message indicating that the vehicle is moving is received over the CAN data bus during the test.
7. Go back to STEP 1 to repeat the test, if necessary.
If the instrument cluster fails to receive an engine temperature message, it will hold the gauge needle at the last indication for about five seconds or until the ignition switch is turned to the OFF position, whichever occurs first. After five seconds, the cluster will move the gauge needle to the low end of the gauge scale. If yours is at the low end, the cluster has a good chance of being OK, otherwise, it may be off scale.
When it is not reading correctly, try wiggling the wires at the temp sensor while someone watches the gauge.
An actuator test of the instrument cluster might be in order.
Successful completion of the actuator test will confirm that the instrument cluster is operational. However, there may still be a problem with the CAN or LIN data bus, the Powertrain Control Module (PCM), the Totally Integrated Power Module (TIPM), the Controller Antilock Brake (CAB), the All-Wheel Drive Control Module (AWDCM), the Occupant Restraint Controller (ORC), the compass module, the Sentry Key REmote Entry Module (SKREEM) (also known as the Wireless Control Module/WCM), or the inputs to one of these electronic control modules. Use a diagnostic scan tool to diagnose these components. Refer to the appropriate diagnostic information.
1. Begin the test with the ignition switch in the OFF position.
2. Depress the odometer/trip odometer switch button.
3. While still holding the odometer/trip odometer switch button depressed, turn the ignition switch to the ON position, but do not start the engine.
4. Release the odometer/trip odometer switch button.
5. The instrument cluster will simultaneously begin to illuminate all of the operational segments in the VFD units, and perform a bulb check of each operational LED indicator. The VFD segments and LED indicators remain illuminated as each gauge needle is swept to several calibration points and back. If a VFD segment or an LED indicator fails to illuminate, or if a gauge needle fails to sweep through the calibration points and back during this test, the instrument cluster must be replaced.
6. The actuator test is now completed. The instrument cluster will automatically exit the self-diagnostic mode and return to normal operation at the completion of the test. The actuator test will be aborted if the ignition switch is turned to the OFF position, or if an electronic vehicle speed message indicating that the vehicle is moving is received over the CAN data bus during the test.
7. Go back to STEP 1 to repeat the test, if necessary.



