Jackle75 Posted January 9, 2018 Report Share Posted January 9, 2018 (edited) Greetings, I am new to this forum and would like a little advise on troubleshooting an engine overheating issue. As the title states or lack thereof, we have a 2013 with 65k miles purchased earlier this for my wife. Naturally, we don't have a warranty so any help is greatly appreciated. The issue started this morning, my wife preparing to drop the kiddo off and head to work. The morning temperature were around 38 - 40 degrees. She received a Engine overheating display and the check engine light is now on. I noticed that the temperature gauge attempted to read the correct reading, then went to zero. I've read that if the PCM doesn't receive a valid message within several seconds, it will default to the last good known setting. Both fans are working with the AC on, which is cold as hell. Is it possible it can be a bad sensor or thermostat? I don't have a code reader to properly diagnose and I am afraid to drive to my Autozone. Regards, Edited January 9, 2018 by Jackle75 Quote Link to comment Share on other sites More sharing options...
omar302 Posted January 9, 2018 Report Share Posted January 9, 2018 Reading the code is must, otherwise you'll be in the dark, code readers are now available for cheap. Also, did you check the coolant level? 1 Quote Link to comment Share on other sites More sharing options...
WWWPerfA_ZN0W Posted January 9, 2018 Report Share Posted January 9, 2018 Hopefully needs fans or thermostat (I know you said fans are working ), and not a water pump. Quote Link to comment Share on other sites More sharing options...
Jackle75 Posted January 10, 2018 Author Report Share Posted January 10, 2018 Reading the code is must, otherwise you'll be in the dark, code readers are now available for cheap. Also, did you check the coolant level?I was able to pull the code P1289 CHT sensor. Upon further inspection, I notice a rodents nest below the lower intake manifold and rodent sh!t on the engine cover. The CHT connector was chewed to hell, order one from Ford should be here tomorrow. Any suggestions on how to keep f'ing rodents out of the engine bay? Quote Link to comment Share on other sites More sharing options...
Jackle75 Posted January 10, 2018 Author Report Share Posted January 10, 2018 Reading the code is must, otherwise you'll be in the dark, code readers are now available for cheap. Also, did you check the coolant level?I was able to pull the code P1289 CHT sensor. Upon further inspection, I notice a rodents nest below the lower intake manifold and rodent sh!t on the engine cover. The CHT connector was chewed to hell, order one from Ford should be here tomorrow. Any suggestions on how to keep f'ing rodents out of the engine bay? Quote Link to comment Share on other sites More sharing options...
Jackle75 Posted January 10, 2018 Author Report Share Posted January 10, 2018 Don't know why the reply posted twice... Quote Link to comment Share on other sites More sharing options...
omar302 Posted January 10, 2018 Report Share Posted January 10, 2018 Sorry, can't help with rodents. Where I live, most of the year the temperature is high enough that the engine compartment stays hotter than ambient and rodents or cats wouldn't try to enter. 1 Quote Link to comment Share on other sites More sharing options...
akirby Posted January 10, 2018 Report Share Posted January 10, 2018 Get rid of any potential food sources especially bird seed, etc. Traps. Poison Cats 1 Quote Link to comment Share on other sites More sharing options...
WWWPerfA_ZN0W Posted January 11, 2018 Report Share Posted January 11, 2018 Some say removing the engine cover helps with preventing such infestation. 1 Quote Link to comment Share on other sites More sharing options...
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