vanwerk

Lol, I like how he says something to the effect of "Ford was generous enough to include a connection to the negative terminal outside the battery compartment" I had no idea this existed, I've gotten really good at snaking my hand under that rear battery cover ?

I'm not sure about the 2019, but I had a similar issue with my 2015 TC XLT incorrectly reporting an overheat event. I posted about it here. In summary, water had collected inside the cylinder heat temperature (CHT) sensor's connector, presumably shorting the terminals and causing the computer to think the low resistance equated to a high temperature.

Of course. Care to be more specific? I have a socket set, various hand tools, multimeter, etc etc. But it seems like if I were to encounter this problem again, even if I had the right tools, I'd be in the dark without a code reader and service manual.

Thanks, I thought I'd read somewhere that the 2.5L engine doesn't have BMS. That is the case for me.

Thanks for the suggestion. I hadn't seen this mentioned in other threads discussing replacing the stock battery with an AGM. Is this something the end-user can do on their own? Actually, I didn't bother trying! I had read a handful of other threads dealing with aftermarket battery replacements and it was suggested to remove the spacer, lest the new battery shouldn't fit.

I've seen it mentioned in other threads before, but just thought I would upload a picture of the battery spacer in my Gen 2 Transit Connect, for those looking to use a battery that will not fit without it removed. Hopefully this helps others more quickly find info on this via search engines. I recently replaced my stock battery with this AGM battery from Rock Auto.

I had an eerily similar issue a couple days ago. Turned out water got into the cylinder head temperature sensor connector, presumably causing to short and report maximum temperature: https://fordtransitconnectforum.com/topic/8757-plugged-valve-cover-drain-hole-caused-cylinder-head-temp-sensor-to-report-overheating/?tab=comments#comment-34852

Hi everyone, it's my first post here! Just had a weird snafu earlier this week and thought I'd share with you all. I have a 2015 TC XLT LWB, for reference. I was leaving the grocery store the other day when my little driver's LCD reported, "High Engine Temperature, Stop Safely". The temperature meter in the dashboard was pegged on "H", and it felt like the car was shaking when I was stopped. Seemed really weird to me as I had driven about 360+ miles the weekend before with no issues, and even drove *to* the grocery store without any issues. Anyway, I decided I didn't want to risk overheating the engine. I parked the van and popped the hood. After ferocious googling on my phone, I checked the coolant: full. Nothing leaking out of the bottom of the car. In fact, nothing looked out of the ordinary under the hood, although admittedly I'm a total car noob. I felt heat from the engine, but without an infrared thermometer, I had no way of knowing how hot it was. I decided to hedge my bets by getting a tow to my local Ford dealer. My logic was that if anyone should know how to deal with this, it would be them, despite holding a bias that I might end up paying more. Well, they got back to me shortly despite a potential 2.5 week wait time due to COVID, and the problem was resolved. The "Valve Cover Drain Hole" basically got clogged with dirt and debris, causing water to spill over into the cylinder head temperature (CHT) sensor connector, presumably shorting the connectors and causing it to think it was maxed out in temperature, throwing codes as a result. It ended up costing about $250 to clean some junk out. Granted, in this scenario, it really made the most sense to just have someone look at it and fix it. This experience really made me want to learn more about how to diagnose my own car problems. Hopefully I don't have this weird issue again, but if I do, I sure would like to be equipped to handle it on my own. My questions: 1. What/where is the valve cover drain hole? 2. Where is the CHT sensor? Where is its connector? 3. How would you have diagnosed this problem? I don't have an OBDII scanner, mind you, but I think the codes pasted below were very telling. Reading online about CHT sensors, how they work, and with reasonable electronic troubleshooting skills, I feel like I could have figured this out given enough time. 4. Is it worth investing in the service manual? I feel like this would clarify a lot of my questions re: part locations. 5. Any other recommendations for avoiding this issue in the future? Like I said, I don't even know where this drain hole is, or how it got clogged with dirt/debris. For fun, here are the notes I got from the shop, including codes. I added my own comments/questions in parentheses: P0217 - Engine Overheat Condition P1285 - Cylinder head over temp sensed P1299 - Cylinder Head Temperature Sensor Detected Engine Overheating Condition Cooling system full Set up test system for CHT (cylinder head temperature) sensor. - Reads 250 when cold. - Reads HOT when CHT sensor connector is jumped (shorted?) - Reads COLD when CHT sensor is disconnected (open circuit?) Checked resistance of CHT sensor - read normal for cold engine temp. Cleared CHT sensor connector of water. Cleared Valve Cover Drain Hole of dirt/debris. Cleared water with compressed air.