My vehicle just blows out lukewarm heat. Never hot like it should. Changed thermostat. Flushed it. Bled it. Still not much for heat?
Nov 13, 2023 at 1:57 PM
heater just blows out lukewarm heat?
2002 JEEP LIBERTY
JUGGALO45
- MEMBER
- 88 POSTS
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I would start the engine and get it warm, then feel both heater hoses going to the heater core (firewall) if both hoses are hot, I would swap out the temperature blend door actuator which are common for going out. This guide may help as well:
https://www.2carpros.com/articles/car-heater-not-working
Check out the images (below). Please let us know what happens.
https://www.2carpros.com/articles/car-heater-not-working
Check out the images (below). Please let us know what happens.
Image (Click to enlarge)
Professional Diagram for 2CarPros Members
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Nov 14, 2023 at 12:34 AM
I will swap that out with a new one, but does it need to be recalibrated after doing so?
Nov 14, 2023 at 3:24 AM
The new actuator does not need to be programmed.
3. Remove the screws that secure the blend door actuator to the top of the HVAC housing.
4. Remove the blend door actuator.
INSTALLATION
1. Install the blend door actuator in place.
2. Install and tighten the screws that secure the blend door actuator to the housing. Tighten the mounting screws to 2.4 (± 0.34) Nm (21 (± 3) in. lbs.).
3. Install the HVAC housing into the vehicle.
4. Install the blend door actuator electrical connector from the wiring harness through the glove box.
5. Connect the battery negative cable.
Let us know how it goes.
3. Remove the screws that secure the blend door actuator to the top of the HVAC housing.
4. Remove the blend door actuator.
INSTALLATION
1. Install the blend door actuator in place.
2. Install and tighten the screws that secure the blend door actuator to the housing. Tighten the mounting screws to 2.4 (± 0.34) Nm (21 (± 3) in. lbs.).
3. Install the HVAC housing into the vehicle.
4. Install the blend door actuator electrical connector from the wiring harness through the glove box.
5. Connect the battery negative cable.
Let us know how it goes.
Nov 16, 2023 at 1:41 AM
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.