"Motor Coolant Over Temperature"

[Amps]

I think they made a typo

That makes sense. I was headed down the Max Tow path for the higher capacities.

Sponsored

 

[TaxmanHog]

That makes sense. I was headed down the Max Tow path for the higher capacities.

That could be the case as well, with three elements we would have several more capacity spec's.

 

[rio]

Just had this happen to me on my Pro today (5k miles). Truck had been sitting for a few hours outside in a relatively shady spot. Not super hot by any means. Turned the truck on and got the "Motor Coolant Over Temperature" message, with the motor temp gauge pegged and red, and a sub message that power was reduced to 65%. As I drove the truck over the next few minutes the gauge reading gradually moved to the center and the max available power gradually made its way back to 100%. Clearly (or maybe I should say seemingly) not a pump issue. I made a 2 hour stop somewhere else and the problem did not return. I checked the coolant level when I got home and it's above the MIN line.

@KevinSReed, any resolution on your issue? Sounds nearly identical to mine. I really don't want to take it to the dealer if I don't have to.

EDIT: Also interesting that there is no notification in FordPass. I'm getting no indication that something needs to be looked at.

 

[Ford Motor Company]

Just had this happen to me on my Pro today (5k miles). Truck had been sitting for a few hours outside in a relatively shady spot. Not super hot by any means. Turned the truck on and got the "Motor Coolant Over Temperature" message, with the motor temp gauge pegged and red, and a sub message that power was reduced to 65%. As I drove the truck over the next few minutes the gauge reading gradually moved to the center and the max available power gradually made its way back to 100%. Clearly (or maybe I should say seemingly) not a pump issue. I made a 2 hour stop somewhere else and the problem did not return. I checked the coolant level when I got home and it's above the MIN line.

@KevinSReed, any resolution on your issue? Sounds nearly identical to mine. I really don't want to take it to the dealer if I don't have to.

EDIT: Also interesting that there is no notification in FordPass. I'm getting no indication that something needs to be looked at.

Good morning- I can look into this for you. Feel free to send over a private message with your VIN and dealership information at your earliest convenience.

 

[Gimme_my_MME]

Just had this happen to me on my Pro today (5k miles). Truck had been sitting for a few hours outside in a relatively shady spot. Not super hot by any means. Turned the truck on and got the "Motor Coolant Over Temperature" message, with the motor temp gauge pegged and red, and a sub message that power was reduced to 65%. As I drove the truck over the next few minutes the gauge reading gradually moved to the center and the max available power gradually made its way back to 100%. Clearly (or maybe I should say seemingly) not a pump issue. I made a 2 hour stop somewhere else and the problem did not return. I checked the coolant level when I got home and it's above the MIN line.

@KevinSReed, any resolution on your issue? Sounds nearly identical to mine. I really don't want to take it to the dealer if I don't have to.

EDIT: Also interesting that there is no notification in FordPass. I'm getting no indication that something needs to be looked at.

You can send your info to the Ford account and they will set you up with a dealer visit.

But as long as this occurred right at startup when the truck had been sitting awhile (meaning no logical way the system was really over temp) then this is just like the other cases and a software bug on startup. It has already been fixed and will be rolling out later this year

 

[KevinSReed]

@rio : No resolution -- dealer drove it a few hundred miles, without recreating the problem. I have driven 2k miles since, and the problem has never reappeared. I am hoping that Gimme_my_MMe is correct, and it is a software glitch.

 

[Lightningstrikesthrice]

Same issue. Brand new f150 lariat long range 211 miles. Parked in sun but not very hit for about 45 min then “motor coolant over temperature” and motor temp gauge on right all red all the way up. Drove a short distance no change. Parked and googled and found this forum…about 1/2 hr later gauge normal and no error message. Coolant was between min and max(proper level). No visible sign of leaks or overheating and no coolant smell. At dealer now…

 

[Henry Ford]

@rio : No resolution -- dealer drove it a few hundred miles, without recreating the problem. I have driven 2k miles since, and the problem has never reappeared. I am hoping that Gimme_my_MMe is correct, and it is a software glitch.

@Gimme_my_MME is a very reliable source.

 

[Bokenator]

This happened to me today just after a trip to Home Depot. Truck had been sitting in a hot parking lot of about 95 degrees according to the dash for about an hour (motor coolant temp was fine before I entered the store). Here is a screenshot of my dash:

I figured it was a sensor error, and so decided to restart to see if that fixed the issue. I only probably left it off for 10 seconds or less before trying the restart. Restart did not fix the issue as the message reappeared.

Then decided the motor coolant couldn't be overheating, because nothing had been running. Yeah 90+ is hot for us humans, but nothing for engine coolant. I could hear the fan churning away while the truck was sitting idle.

I decided to load up my purchases prior to jumping online to figure out what to do. While loading up the lumber (I had turned the truck on early to open the back window for an exceptionally long piece of cedar timber) the temperature came off of red and went into the yellow zone, and so I decided to give it a go and see if I could make it home. Didn't think to take another picture until temp was almost back in normal range.

By the time I was in my neighborhood, temp was back within range.

Turned the Lightning off and unloaded, then when I got back in 20 minutes later it was again centered smack dab in the middle of the acceptable range.

As an interesting tidbit, the frunk didn't want to open when I popped it prior to beginning loading. It unlatched and opened a tiny bit (say an inch), then started beeping. Tried hitting the button and manually opening it to no avail. I threw the small stuff in the backseat then got distracted by the overheating message when I went to open the back window. Not sure if the two issues are related in any way. Thankfully the frunk opened and then closed when I remembered to check it before driving off. Software or sensor Gremlins for both issues I figure.

 

[Gimme_my_MME]

Then decided the motor coolant couldn't be overheating, because nothing had been running. Yeah 90+ is hot for us humans, but nothing for engine coolant.

Correct, this is the same software glitch where upon startup it shows over temp and it just doesn't logically make sense. It's fixed in an upcoming update

Not sure if the two issues are related in any way.

They are not related

 

[enfuse]

This happened to me today just after a trip to Home Depot. Truck had been sitting in a hot parking lot of about 95 degrees according to the dash for about an hour (motor coolant temp was fine before I entered the store). Here is a screenshot of my dash:

I figured it was a sensor error, and so decided to restart to see if that fixed the issue. I only probably left it off for 10 seconds or less before trying the restart. Restart did not fix the issue as the message reappeared.

Then decided the motor coolant couldn't be overheating, because nothing had been running. Yeah 90+ is hot for us humans, but nothing for engine coolant. I could hear the fan churning away while the truck was sitting idle.

I decided to load up my purchases prior to jumping online to figure out what to do. While loading up the lumber (I had turned the truck on early to open the back window for an exceptionally long piece of cedar timber) the temperature came off of red and went into the yellow zone, and so I decided to give it a go and see if I could make it home. Didn't think to take another picture until temp was almost back in normal range.

By the time I was in my neighborhood, temp was back within range.

Turned the Lightning off and unloaded, then when I got back in 20 minutes later it was again centered smack dab in the middle of the acceptable range.

As an interesting tidbit, the frunk didn't want to open when I popped it prior to beginning loading. It unlatched and opened a tiny bit (say an inch), then started beeping. Tried hitting the button and manually opening it to no avail. I threw the small stuff in the backseat then got distracted by the overheating message when I went to open the back window. Not sure if the two issues are related in any way. Thankfully the frunk opened and then closed when I remembered to check it before driving off. Software or sensor Gremlins for both issues I figure.

Same thing happened to me… when I returned to my truck, the frunk did not open on first attempt, pressed remote button again and it opened fine. When I turned on vehicle the motor coolant temperature gauge was red so I remained parked. After a bit it turned to yellow then blue. It hasn’t happened since, dealership Pilsner find anything wrong.
A few days later my tailgate notification in dashboard was illuminated, opened and closed it and the notification went away.

 

[Driver8]

I wonder if this could be an issue with heat radiating off of asphalt.

The scenario I am imagining is this: sunlight heated the asphalt, then you parked over the hot asphalt, the heat rose and got trapped somewhere that affected the thermometer. If you then left the truck parked, the shade of your truck then cooled the asphalt and the trapped heat dissipated into the ambient air.

Did everyone who experienced this problem get the alert after returning to the vehicle a short time after parking over asphalt on a sunny day?

 

[Gimme_my_MME]

I wonder if this could be an issue with heat radiating off of asphalt.

The scenario I am imagining is this: sunlight heated the asphalt, then you parked over the hot asphalt, the heat rose and got trapped somewhere that affected the thermometer. If you then left the truck parked, the shade of your truck then cooled the asphalt and the trapped heat dissipated into the ambient air.

Did everyone who experienced this problem get the alert after returning to the vehicle a short time after parking over asphalt on a sunny day?

Interesting theory but no. It is a software glitch and that's it

 

[Lightningstrikesthrice]

Interesting theory but no. It is a software glitch and that's it

I have not had the error message reappear or any other issues. Now 4500 miles.

 

[Pod]

Had this exact issue. Glad to hear it is a software glitch. On an 800 mile road trip.

Sponsored