My heat sucks

[kb2755]

I don't understand why anyone would have to "dial it back" in these trucks. They have a thermostat that you set the interior temperature that you want (70F in my case) and the truck brings it up to temperature and then maintain that selected temperature. If you are saying you set it to temperature (i.e., 70F) and it gets hotter than that, you have a problem with your interior thermostat.
My wife will set her temperature to 80 thinking it will heat the truck faster, not understanding that the truck can't get it warm any faster than the engine can heat the coolant. It will reach 70 just as fast with the interior thermostat set to 70 as it does setting the thermostat to 80, all she is doing is forcing the truck to overshoot the desired temperature until she dials it back to the real temperature she wants, so it actually takes longer to get it to the desired temperature.

If the outside temperature is mild, this isn't a problem. Temperature is comfortable getting in and the heat doesn't blast on auto. But when the outside temperature is frigid and the truck has warmed up, it feels like it overshoots that and gets way warmer until it levels out and cools itself down eventually. I've found myself incredibly uncomfortable in a winter coat while the truck has the heat going.

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[RossRR]

If the outside temperature is mild, this isn't a problem. Temperature is comfortable getting in and the heat doesn't blast on auto. But when the outside temperature is frigid and the truck has warmed up, it feels like it overshoots that and gets way warmer until it levels out and cools itself down eventually. I've found myself incredibly uncomfortable in a winter coat while the truck has the heat going.

Hmm...interesting...my '19 502a Lariat comes up to temperature very nicely in subzero temperatures. If the coolant/fluid in the Powerboost has to bring the hybrid battery up to temperature also, I could certainly understand a lag in the cabin air coming up to temperature. Perhaps the truck limits the amount of warmed coolant to the cabin heater core until the battery is at operating temperature and then redirects a greater amount of warmed coolant to the core. That could address an overshoot; but purely speculation on my part...

 

[Antman]

I seem to recall some issues with the powerboost and coolant leaks, so start there.
1. Make sure your coolant is full
2. Once the engine is warm, carefully check the top radiator hose with your hand, and see if it is warm/hot. If that is hot and you still aren't blowing warm to hot air, then its either an issues with your heater core, air flow (mouse nest or the like) or with all the electronics on these trucks you could have a faulty microchip, or software issue.
3. if it takes the engine temp a long time to come up, more than 15-20 minutes, then you may have a bad thermostat, stuck open...

Either way, you're likely looking at a trip to the dealer, and dealing with warranty diagnosis/repair.

Thanks for all the replies!

To answer some questions- The cabin filter is new and clean- I only have 3600 miles on the truck. I checked the coolant, and I checked for leaks- everything checks out OK.
The heat will work a little better if not on Auto setting, but still not how I would like.

It seems like the priority is on heating the battery, and fuel efficiency, NOT occupant warmth.
Example- It's 30 degrees out, the engine will barely be warm, according to the coolant temp gauge, the heat will be set to high (blowing luke warm air) and the engine will still shut off and run on battery power.
Damn, I'm paying the payments I want to be warm first, HA! Every Ford I've had in the past will cook you medium rare by the end of my street.

 

[turbospartan]

I've never noticed it being slow to heat during CO winter, and I have a Powerboost. One thing I have noticed is that the front windshield defrost is kinda weak as it leaves an ice patch almost right in driver's view. Seems like the vents aren't angled specifically to the driver's view area, and more of the flow is aimed for dead center of the windshield.

 

[F150Platinum]

Anybody else?
It just takes forever to get hot and even then it never really gets that hot. I could leave the auto setting on high for like 1/2 an hour before it gets too hot in the cabin. This is still happening with temps in the 40's...
I think part of the heat is the A/C running like a heat pump, correct? Then the "normal" heater core heat kicks in? I've been paying attention to the sounds it makes and there is definitely some sort of switch over that occurs....

Any ideas?

Thanks!



It reminds me of my 2011 4Runner- I could leave the heat on high all day if it was below freezing and it never got there...

I have the opposite problem. The heat feels like it is blasting through the vents unless I turn the dial down to Low if it's below 80 degrees outside. Yesterday it was 55 degrees outside, and I had to crank the dial down and turn on the seat coolers to be comfortable.

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