3.5 Ecoboost slow engine warmup

[peterk9]

I'm not sure this is a problem, aka bad thermostat, or the 3.5 EcoBoost is just cold blooded.
Now that the snow is on the ground I find it takes 6 or 7 miles at 40 MPH or so (10 minutes) for the engine to even get to where heat is coming out the vents. Outside temp is 28F ish.
I was really happy that pulling my 3700 lb trailer up and down the hills of Western PA when it was over 90 the engine temp stayed in the mid range.
Is slow to warm up the price I have to pay or is something wrong?

Your thread has been merged with this one found using the 'Search' feature.

Peter

 

[613GT500]

I'm not sure this is a problem, aka bad thermostat, or the 3.5 EcoBoost is just cold blooded.
Now that the snow is on the ground I find it takes 6 or 7 miles at 40 MPH or so (10 minutes) for the engine to even get to where heat is coming out the vents. Outside temp is 28F ish.
I was really happy that pulling my 3700 lb trailer up and down the hills of Western PA when it was over 90 the engine temp stayed in the mid range.
Is slow to warm up the price I have to pay or is something wrong?

New vehicle that's still under bumper to bumper warranty...pay the dealer a visit and raise your concern.

 

[BlueJeans17platinum]

34F this morning, so chilly, not cold yet.

Cold start, no warm up. 3 minutes in, the gauge was past the blue line, so 25% warm, blowing hot air. 5 minutes in gauge was down the middle, inside of the car was warm.

I will keep an eye as it gets colder, but you clearly have an issue. Goodluck.

 

[wbdonnie]

Online searches indicate that Ford uses the same thermostat in both EcoBoost and normally-aspirated V6 Explorers. The Ford part number is 1X4Z-8575-A. Looks like it's a 190-degree thermostat.

There is also 1x4z-8575-B , that ford sold me for my 2013 EcoBoost 3.5

 

[peterk9]

There is also 1x4z-8575-B , that ford sold me for my 2013 EcoBoost 3.5

1X4Z-8575-B is a replacement for 1X4Z-8575-A.

Original 2005-2020 Ford Engine Coolant Thermostat 1X4Z-8575-B | Levittown Ford Parts

2005-2020 Ford part # 1X4Z-8575-B - Engine Coolant Thermostat

parts.levittownfordparts.com

Peter