No heat from heater?

Check to see if both heater hoses are hot first. If they are then you'll have to check your actuators on your heater unit to see if they are working, they can be either vacuum or electric. Check out this guide with the diagrams below.

https://www.2carpros.com/articles/car-heater-not-working

Check out the diagrams (Below). Please let us know what you find.

Try replacing the thermostat and see what happens

Make sure the coolant level is correct and try bleeding it could be airlock in it-if it continues have it block and pressure tested-

How long ago did you replaced the Stat? -Could be the problem again

Hi pb2010,

Thank you for the donation.

Seems the cable is out of adjustment. Heater core need not be removed for adjusting the cable.

Here are the procedures.

ADJUSTMENTS

TEMPERATURE CONTROL CABLE

1. Ensure temperature control cable housing and core are connected at both heater control panel and heater assembly. Ensure heater control panel is properly installed.

2. Rotate temperature control knob so that knob pointer is at 12 o'clock position. Pull temperature control knob straight out from heater control panel until perimeter of knob (not knob pointer) protrudes about.25" (6 mm) from face of heater control panel.

3. Rotate temperature control knob clockwise so that knob pointer is at one o'clock position. Push in on knob slightly and continue rotating knob to its full clockwise stop. Place knob pointer at a position about.32" (8 mm) beyond end of Red stripe. Release knob. If knob is pointing at about.32" (8 mm) beyond end of Red stripe, go to next step. If knob is not pointing at about.32" (8 mm) beyond end of Red stripe, go back to step 2 and repeat
adjustment procedure.

4. Rotate temperature control knob counterclockwise so that knob pointer is at 12 o'clock position. Push temperature control knob straight into heater control panel until perimeter of knob (not knob pointer) is flush with base of heater control panel.

5. Rotate temperature control knob to its full clockwise stop. Release knob. Knob pointer should be aimed at end of Red stripe. If knob is pointed at end of Red stripe, go to next step. If knob is not pointed at end of Red stripe, go back to step 2 and repeat adjustment procedure.

6. Rotate temperature control knob to its full counterclockwise stop. Release knob. If knob springs back, self-adjuster clip securing temperature control cable to blend-air door lever is improperly installed. See TEMPERATURE CONTROL CABLE under REMOVAL & INSTALLATION. If knob does not springs back, temperature control cable adjustment is
complete.

NOTE: NEVER OPEN THE RADIATOR OR REMOVE ANY COOLING SYSTEM HOSES WHEN THE ENGINE IS HOT>

Before doing anything, do this. Start the engine, let it warm up with the heater on high. Feel both heater hoses. If one is cold and one is hot, then flush the heater core by removing the two hoses and forcing water (from a hose) through the core in both directions. They do make kits for them, but usually all that is needed is water pressure in the opposite direction of normal water flow. After you finish, reconnect the supply hose to the heater core and tighten. Reattach the return but don't tighten until you start the engine and allow the coolant to flow through the hose to eliminate air from the system.

If both heater core hoses are hot, then you need to check the blend door. It determines if you get heat or AC in the vehicle. The Blend door is near the heater core. If it is stuck in the cool position, you will not get heat.

Let me know what you find.

Joe

I need you to check two things for me. First, make sure the engine is running at a normal operating temp. Also, with the engine hot and the heater on, feel both heater core hoses. They should both be hot.

Let me know what you find.

Joe

Did you have the heater core flushed? It sounds like there is not enough flow through the heater core.

Hi do you have time to open the hood to feel around and see if there is heat getting to the interior, by checking the heater hoses? How many miles are on it, and does the gauge read hot(temp)?

After filling the radiator did you leave the off cap when you started it up and let it run?