HELP with (ETC) light and Temperature dropping on 08 wrangler -
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post #1 of 8 Old 02-17-2011, 02:32 PM Thread Starter
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HELP with (ETC) light and Temperature dropping on 08 wrangler

I'm having a problem with my 2008 jeep wrangler unlimited. It Has 42000 miles and my check engine light is on. My real problem is that in regards to the Engine light while driving my ETC (electronic throttle controll light) will come on and when that happens my temp gauge goes from the 1/2 mark to 0 and my heat starts to blow cool air (when it was previously hot) which at the same time the outside fan kick on and runs. If i shut the car off the light will go out and everything returns to normal. Had a new raidator, thermostat a few months back and a new temp sensor (throwing code P0116) 3 weeks ago and still having problem. Please help!!! no one seems to know what is going on and local dealership said that my head is possibly cracked? Any suggestions?

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post #2 of 8 Old 02-17-2011, 04:27 PM
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Is your coolant level going down? You don't "consume" coolant, so if the level differs from week to week, it is going somewhere that it is not supposed to.

If the computer is acting up, sometimes disconnecting the battery for a half hour or so will reset things. Give it a try since it is free.

When you hook up a code reader, what codes do you get?

Tim C.
Rochester, NY
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post #3 of 8 Old 03-03-2011, 07:54 AM Thread Starter
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Coolant level good. Tried the disconect and it reset all the lights for a short time but no help. Got the jeep in the shop this week to see what may be going on, so once i know something i will post! Thanks for the reply.
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post #4 of 8 Old 03-03-2011, 03:56 PM
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Best of luck!
My worst fear is the computer crapping out......there's no wrench that'll fit it, y'know?

I'm just here for the gasoline. --Max

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post #5 of 8 Old 10-08-2011, 02:32 PM
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I'm having the same problem now with the same model jeep. Did anyone get it resolved? Afraid to go far with it. Can't keep turning the car on and off to turn light off because it only lasts 3 miles. My lights came on a few hours after my husband changed the thermostat

Last edited by bates5; 10-08-2011 at 03:12 PM.
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post #6 of 8 Old 11-04-2013, 08:38 PM
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Anyone ever find an answer or fix?

2k2 Liberty limited
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post #7 of 8 Old 02-05-2014, 08:42 PM
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Did anybody get the answer to this issue with the ETC & temp gauge dropping....
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post #8 of 8 Old 02-19-2014, 10:49 PM
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I have the same issues as the first post, what I did was replace the termostat and replaced the coolant temperture sensor. it work problem solved. Also check to see if the two wire on the sensor aren't loose, crack or shorting out.
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