Coolant change and thermostat?

[Jay3702]

2016 F150 5.0. I want to do coolant change this spring. is it a good idea to change the thermostat with a new Motorcraft one or not necessary
Thanks

 

[atikovi]

It's just 5 years old. If it ain't broke, don't fix it. Not sure where it is, but on many engines it can be a pain to get to and you run the risk of leaks if not put back in properly. On a 2006, maybe. On a 2016, not unless you suspect it's bad.

 

[supton]

I agree, i’d leave it alone. If worried, hook up a scanner and watch coolant temp. If it stays around the tstat rating, then it is still working.

 

[eljefino]

^ Do use a scan tool though as dash gauges are deadened to near worthlessness.

And leave it alone if it works, lots of junk replacements out there.

 

[2010Civic]

I wouldn't change the thermostat. How many miles on the truck?

 

[Slick3914]

I'd do a drain and fill with Motorcraft coolant and call it good. Repeat every 3 years.

 

[Hal-9000]

new thermostat anytime fluid is changed

 

[mattd]

Unless there is a DTC stored for low coolant temperature just leave it alone. The ECM monitors closed loop coolant temperature and will tell you if it’s too low. If you want to change the coolant just do that

 

[Jay3702]

I wouldn't change the thermostat. How many miles on the truck?

61,000 miles

I was thinking about a drain and feel like I do with my other vehicles but they did change coolants. Although they are compatible, my current color is red and the new color is green

 

[circuitsmith]

I D&F coolant every 5 years, thermostat and rad cap every 10.

 

[2strokeNorthstar]

They seem to last 150-200k these days. I just changed an 01 Tundra thermostat. 197k miles. Worked fine but I was changing the radiator and hoses so it was a good time.I haven’t seen a cap fail since the 80s.

 

[nthach]

I’d keep the OEM T-stat in unless the CEL turns on and a code for low temperature is logged.