jordan7526 Posted June 16, 2015 Share Posted June 16, 2015 Hello all, Hopefully nobody else has experienced this problem, but maybe someone on here may have an idea of how to solve my issue. My car says "engine hot recommend shutting engine off" when driving in temperatures above 88 and on hilly roads, temperature gauge goes from normal to redline very quickly in these "occurrences". I took it into the dealer, and they were unable to duplicate these warning messages and there was no stored messages on the car's computer. fastforward to my next trip 2 months later, i drove to the desert and once again same warnings were displayed on my dash. The car is not too hot when touching the engine but the warnings keep coming and the dealer is unable to find the problem or fix the problem and basically telling me to deal with it. I don't feel comfortable driving a car that is having problems like this specially in the desert, where cell service is hard to come by and who pays almost 30K for a car, not to be able to drive it. I have Ford corporate involved now, but even they are unable to determine my problem. My question is this, would this be considered a lemon? Or what are my options? Thanks all for looking Quote MultiQuote Edit 0 Quote Link to comment Share on other sites More sharing options...
akirby Posted June 17, 2015 Share Posted June 17, 2015 First guess would be air in the cooling system allowing steam to cover the temp sensor. Check the coolant level and bleed the system. Next guess would be the temp sensor itself. 1 Quote Link to comment Share on other sites More sharing options...
braddonati Posted July 17, 2018 Share Posted July 17, 2018 Did you ever get this resolved? I have the same exact problem with my 2015. Only going uphills with ac on. We have had to turn off ac and turn up heater to resolve issue until we get to the top of hill and can coast. Weird only on uphills when the temp is above 88 or so degrees. Our dealer said they tested the fans, coolent level and for leaks, all came back as normal? Problem just popped up when we moved to Az last week. Dont really know what to do since they cannot duplicate the issue, then it must be fine? Any luck? 0 Quote Link to comment Share on other sites More sharing options...
bangster Posted July 17, 2018 Share Posted July 17, 2018 22 minutes ago, braddonati said: Did you ever get this resolved? I have the same exact problem with my 2015. Only going uphills with ac on. We have had to turn off ac and turn up heater to resolve issue until we get to the top of hill and can coast. Weird only on uphills when the temp is above 88 or so degrees. Our dealer said they tested the fans, coolent level and for leaks, all came back as normal? Problem just popped up when we moved to Az last week. Dont really know what to do since they cannot duplicate the issue, then it must be fine? Any luck? Well, depending on on where in AZ you live, you need to get it fixed, because 2/3 of the year it will likely overheat. I have no words of wisdom for you, cooling capacity is lacking for some reason. The mountain passes out of El Centro to San Diego and one other around death valley tell you to turn off your AC...when it is 120 degrees no thanks! I did see the temps climbing in one of our vehicles but it never got to were I felt I needed to turn off the AC. Does it smell hot? Does it start running poorly? I have yet to do the coolant in my daughters 2015, I know the 2.5, 1.5/1.6 and 2.0 have different ways of getting air out of the system. 0 Quote Link to comment Share on other sites More sharing options...
braddonati Posted July 17, 2018 Share Posted July 17, 2018 (edited) THanks for the reply. Last week when the family drove out there from the Central Coast, the car got hot on all four passes/hills getting down there. The car still has power but we have to drop the rpms and off with the a/c till it starts to go downhill to the flat area, then the temp gauge goes back to the middle. Going to give a dealer in AZ a chance to fix it or I will just get rid of the car when I get there next week. It’s a shame because aside from this problem, it is a fantastic car, I just don’t trust the car, especially when my daughter needs to drive back for school in another month. The dealer we have brought it to in CA two times for this issue said they couldn’t duplicate the problem. I guess that means it must not exist? Maybe i have been dealing with a crappy service dept? I really don’t want to deal with this anymore. Edited July 17, 2018 by braddonati 0 Quote Link to comment Share on other sites More sharing options...
bangster Posted July 17, 2018 Share Posted July 17, 2018 The older 2.5's had a TSB out for the CHT getting corroded and reporting an actual false overheating condition, and I suppose that something similar might be happening here, but since it is only when under a heavy load with the AC on, I kinda doubt it, unless the CHT is just a little off and once it goes above "normal" it goes directly to high. Needing to get rid of a 3 year old car for something like this would suck. I just had to work through some similar cooling issues with an 18 year old car, but in the end still worth it to me, but I think most would have junked the car. 0 Quote Link to comment Share on other sites More sharing options...
sirtanon Posted July 17, 2018 Share Posted July 17, 2018 1 hour ago, bangster said: The older 2.5's had a TSB out for the CHT getting corroded and reporting an actual false overheating condition, and I suppose that something similar might be happening here, but since it is only when under a heavy load with the AC on, I kinda doubt it, unless the CHT is just a little off and once it goes above "normal" it goes directly to high. Needing to get rid of a 3 year old car for something like this would suck. I just had to work through some similar cooling issues with an 18 year old car, but in the end still worth it to me, but I think most would have junked the car. My initial thought was "CHT sensor TSB?" but then after reading more detail, I don't think that's it either. If it was the sensor itself, then I would expect the overheat warning to be either all the time, or at random times. Based on the description, this actually appears to be a genuine overheat condition under load. My gut says it's one of 3 things: - Water pump issue - Thermostat issue - Radiator issue ... okay maybe 4 things.. - Incompatible coolant technologies were mixed, leading to gunk which is either restricting flow, or reducing heat transfer capability. The first thing I would do in this situation is a deep flush, including either a pre-bottled flush (Prestone, etc..) or weak citric acid, followed by some fresh 50/50 coolant. Let us know what the dealer determines. 0 Quote Link to comment Share on other sites More sharing options...
con_fusion Posted July 18, 2018 Share Posted July 18, 2018 8 hours ago, bangster said: The older 2.5's had a TSB out for the CHT getting corroded and reporting an actual false overheating condition, and I suppose that something similar might be happening here, but since it is only when under a heavy load with the AC on, I kinda doubt it, unless the CHT is just a little off and once it goes above "normal" it goes directly to high. Needing to get rid of a 3 year old car for something like this would suck. I just had to work through some similar cooling issues with an 18 year old car, but in the end still worth it to me, but I think most would have junked the car. Not sure if this would apply to the 2015 but here is a video where FordTechMakuloco talks about the 2.5L and the CHT sensor and how to check it: False Overheat One thing I had happen to me in a previous car, my AC condenser fan became disconnected after a service. It would overheat while sitting at a stoplight and then be ok when I started driving again. Once I found and reconnected the condenser fan, all was good. I know you said the dealer checked the fans but you may just want to see if the fans kick on when the AC is turned on. 0 Quote Link to comment Share on other sites More sharing options...
braddonati Posted August 14, 2018 Share Posted August 14, 2018 So it appears that the dealer here in Glendale AZ might have found the issue related to our problem with high coolant temp. They found what remains of either a mouse/rat or bird carcus inside the shutter system preventing it from opening. This would cut off air flow through the radiator. I am glad that they at least looked at the issue differently than the other two time we took it in to the dealer in CA. Will report back after we get the car back and test it on the highway going up a grade. brad 0 Quote Link to comment Share on other sites More sharing options...
bangster Posted August 14, 2018 Share Posted August 14, 2018 Wow, interesting. I know my 2017 Escape has the active shutter setup as well, but never really thought about it. I hope that solves your issue and you don't have to get rid of the car, I know my daughter loves her 2015, I don't know how to tell her she might not be able to afford the insurance on it once we stop paying it. 0 Quote Link to comment Share on other sites More sharing options...
sirtanon Posted August 14, 2018 Share Posted August 14, 2018 Ah cool, good to see another member from the Phoenix area. I thought I was alone here. Glad to hear that you got things fixed. 0 Quote Link to comment Share on other sites More sharing options...
braddonati Posted August 27, 2018 Share Posted August 27, 2018 (edited) Well the new shutter system solved our problems. Car made the journey back to Central California with no overheating message even over the three large passes you have to drive over. As a side note, the A/C works really well again. Edited August 27, 2018 by braddonati 0 Quote Link to comment Share on other sites More sharing options...
ABACALLAO@YAHOO.COM Posted February 22, 2021 Share Posted February 22, 2021 (edited) EDITED by Moderators Hi ABACALLAO. Please do not double post questions. It is easier for other members to help if all questions and information are located in one place. Since your other post concerning this issue already has a reply, this one has been edited out. Good luck. Edited February 22, 2021 by bbf2530 Double post. 0 Quote Link to comment Share on other sites More sharing options...
Jeff Lemle Posted April 9 Share Posted April 9 I have a 2017 Ford fusion SE and it seems like there is a coolant leak, but I haven't seen any on the garage floor or under my car when parked. What else could be causing me to lose coolant? 0 Quote Link to comment Share on other sites More sharing options...
drolds1 Posted April 10 Share Posted April 10 (edited) When posting a question like this, it helps if you supply some details about your car. For instance, which engine do you have? This is an Internet guess but, due to defective engine blocks, Ford's I-4 EB engines have been known to develop coolant intrusion into cylinders 2&3, which gets burnt. There would be no obvious leaks in such a case, but a professional diagnosis is in order here. https://youtu.be/_8nQ1NZW_GI?feature=shared Edited April 10 by drolds1 1 Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.