Heater does not get very hot there is no control valve on the hoses. what could be the issue?
Jan 2, 2023 at 7:35 PM
Heater problem?
2007 DODGE RAM
LESTER SLADE
- MEMBER
- 1 POST
Advertisement
JACOBANDNICKOLAS
- ✓ASE Certified Mechanic
- 110,194 POSTS
Hi,
It could be a few things. First, does the engine reach a normal operating temperature? If it doesn't, the coolant won't get hot enough to produce a lot of heat. This can be caused by a partially stuck thermostat. Take a look at this link. You may find it of interest.
https://www.2carpros.com/articles/how-an-engine-thermostat-works
Next, there could be an issue with the heater core being partially plugged. To check that, start the engine, turn the heater on, and allow the engine to reach operating temperature. Turn the engine off and open the hood. Feel both heater core hoses at the firewall. Are both hot?
Lastly, there is a blend air door actuator that may not be fully functional. However, if you are able to change from heat to cool with ease, that isn't a likely suspect.
If possible, check those few things and let me know what you find. Also, here is a link you may find of interest.
https://www.2carpros.com/articles/car-heater-not-working
Take care and let me know what I can do to help.
Joe
It could be a few things. First, does the engine reach a normal operating temperature? If it doesn't, the coolant won't get hot enough to produce a lot of heat. This can be caused by a partially stuck thermostat. Take a look at this link. You may find it of interest.
https://www.2carpros.com/articles/how-an-engine-thermostat-works
Next, there could be an issue with the heater core being partially plugged. To check that, start the engine, turn the heater on, and allow the engine to reach operating temperature. Turn the engine off and open the hood. Feel both heater core hoses at the firewall. Are both hot?
Lastly, there is a blend air door actuator that may not be fully functional. However, if you are able to change from heat to cool with ease, that isn't a likely suspect.
If possible, check those few things and let me know what you find. Also, here is a link you may find of interest.
https://www.2carpros.com/articles/car-heater-not-working
Take care and let me know what I can do to help.
Joe
Jan 2, 2023 at 9:29 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.