Skip the auto shop - Our mechanics make house calls

Q: Vehicle heat wont get hot. what else can it be? 2001 Ford Expedition

asked by on

I've replaced the water pump, heater core and turned the blend door manually. And the vehicles heat still won't get hot. I even bled the system 3 times. What other possibilities could it be ?

My car has 110000 miles.
My car has an automatic transmission.

Hello - your lack of heat from the heater is dependent of 2 things for it’s source of heat: (1) a hot engine, and (2) hot coolant flow to the heater core (which you have replaced). If the engine temperature gauge is dead center, it is at its designed operating temperature - meaning the thermostat is working properly. If it reads low, or left of center, the thermostat is not functioning properly. If this is the case, I would recommend a thermostat replacement by a mobile, professional mechanic, such as one from YourMechanic, who will come to your location, and replace your thermostat. If engine temp is correct at the middle of the gauge, the heater control valve or the heater control in the HVAC switch assembly is the likely problem - not allowing hot coolant into the heater core. I would suggest an inspection of the heater system for this problem.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  • Home
  • Questions
  • Vehicle heat wont get hot. what else can it be? 2001 Ford Expedition

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Can a bad alignment cause a loud noise when driving and stop when turning wheel ?

If the noise did not start until after the alignment was done then you need to return to see if they left something loose or have an explanation for the noise. If you had a tire rotation then a tire...

Q: Heater fan work's. After about. A half hour heat gets less. Fan still works. But no heat.

The lack of heat being generated by your system may indicate a faulty heater core. The [heater core]((https://www.yourmechanic.com/services/heater-is-not-working-inspection) is a small radiator like unit that circulates the hot coolant from the engine through the heater core which then uses this...

Q: High pitch frequency noise

The high pitch noise you are hearing is the fuel pump in the fuel tank getting noisey and will fail if the pump is not changed in the near future. The fuel filter and fuel pump along with the fuel...

Related articles

Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.