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Discussion Starter #1
code po118--coolant temp sensor high--changed sensor but still get same code. thermostat or ???
thanks
 

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You should still be under warranty with a 2017. Let the dealer mess with it. If it really is overheating your heater is going to work fine.....but you sure could be causing other problems.
 

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Discussion Starter #5
probably will take to dealer, can't find anything else about it.
thanks
BTW--is not over-heating??
maybe ecm??
 

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Interesting. The mechanical thermostat allows the water to go from engine to radiator. It always mixes through the engine and heater. You can get an aftermarket radiator cap with a temp meter built into it to see or use one of those laser thermometer hand held units to check temps. The sensor would effect afr, performance and operation of the electric fan. The mechanical t stat will effect mixing of water to radiator circuit.

Have you tried disconnecting battery to reset ecu? Have you used a odb2 scanner to check temp as well as codes or pending codes?
 

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forgot to mention model is 2017
If you are still under the bumper to bumper warranty, don't waste your time, just take it to the dealer and have them handle it. I would not do any work on my car if it is still under warranty!!! I don't know if you installed the new sensor or not, but the last thing you want to do is give the dealer the option to void your warranty because you or a third party worked on the car!!!!!!
 
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