It could also be a sign that you are almost out of coolant. Depending on how old and complicated the vehicle is, the blend door may be operated by cable, or it could be operated by an actuator. Foggy windows are a sure sign of a bad heater core. Antifreeze is harmful and can be fatal if swallowed. An overheating engine can indicate that the heater core is leaking.
But, there are a lot of other reasons why a vehicle could overheat. If it is full and overheating, take a look at the thermostat first. If there is anything that you would like to add, please feel free to leave a comment below. Coolant Smell The nose and ears are our best auto diagnostic tools. A typical heater core 2. Thanks Images Click to enlarge. Was this answer. Told I have a heater core problem with intermittent heat and poor defrosting.
What would it take to change the heater core out? Thank you. Please let us know if you have other questions. Recently purchased my Ford Taurus from a dealership about 7 months ago. In late October I noticed a big puddle of liquid in the passenger side floorboard of my car--we had had 2 days straight of heavy rain Seattle! So I figured maybe there was a leak in the hood and water was getting through and leaking into my car-- shows how much I know about cars.
Anyways, in the beginning of December the puddle happened again and it had been raining all weekend as well so I thought it was the rain again.
But I called a Ford Dealership and inquired and they told me it was the heater core and that my car was not driveable and if I continued to drive it I was going to overheat the car and possibly blow the engine. I found a mechanic to disconnect the heater core for me. A temporary solution to a big problem.
My dealership warranty ended after 3 months. I am trying to find fault with them. How could a Ford Taurus with only 30, miles had 30, when I purchased it be needing such a huge repair at this time? I am trying to figure out wear and tear of the heater core and things of that nature. Thanks so much! Nyiesha Walker Was this answer.
Hi, Replacing the heater core on this vehicle is a somewhat big job. Unplug the heater tubes at the firewall and reconnect the heater hoses with their clamps.
Reinstall the entire instrument panel and its components in the reverse order of removal. Evacuate and recharge the air conditioning system at the same location that it was discharged. Step 1 Discharge the air conditioning system at your Ford dealer's service department or an automotive air conditioning shop. Step 2 Disconnect the car's negative battery cable. Step 3 Drain the engine coolant into a large container at the radiator's drain plug--you may need pliers to remove the plug--then drain the remaining coolant at the engine block drain plug.
Step 1 Loosen the clamps for the heater hoses with pliers and disconnect them from the core's tubes; these are mounted on the firewall within the engine compartment. Step 2 Remove the mounting screws for the white, rectangular-shaped blend door actuator with a hex screwdriver, unplug its electrical connector and remove it from the air conditioner evaporator. Step 3 Disconnect the spring on the heater core cover using a small, flat head screwdriver on the spring's hooked end.
Step 4 Remove the three small mounting screws on the heater core cover with a hex screwdriver, lift the lever up and remove the cover and its gasket from the housing.
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