Question about 1995 Lincoln Town Car

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When i used the heater the air still coming cold or in the best things the air coming normal you can tell me what the problem

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  • jackthekid Feb 09, 2009

    My 1995 Lincoln Towncar's heater & defroster blow cool air.

    We changed the thermostat and checked the fluid levels.

    The hoses going into & out of the heater core feel hot.

    Is this possible if the core is clogged?

    If so, is there a way to clean the core without removing it?

    Or is something else wrong?



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One of the most likely culprits in the case of heater failure is low coolant levels. You need to check your coolant (Antifreeze in the radiator, not the Air conditioning coolant) to be sure it is full to specifications. If your coolant/antifreeze is at the right level, then your next likely problem is a blocked heater core. This can be due to a build up of dirt/rust/scale and such in the system, or it could be a pinched or badly kinked line going to the heater core. If the system is blocked your vehicle may also be overheating, so you should check your temperature gauge if you have one. If you only drive short distances, you might not notice the overheating.

Let me know if that helps.

Also, as a side note, buying a manual might be helpful, but it's not going to tell you about all of your problems, and I'm sorry you received such a rude answer initially from r_clark.

Posted on Feb 08, 2009

  • Randall LaClaire Feb 10, 2009

    The heater core might clean out if you use a product such as prestone super clean. It is usually recommended for vehicles with high mileage or cooling systems that have been neglected for long periods. It is the most potent that they sell, which is why it might do the trick. If you follow the directions on the bottle, they are very self explanatory. Just keep in mind that using this product requires you to drain your radiator and cooling system more than once, which means you'll need to check your local laws in regard to safe draining and disposal of coolant. Also, keep in mind the cooling system refers to the vehicle's anti-freeze/water solution. It's primary function is to cool the engine ... secondary is to heat your interior :)

    Also, as an afterthought, there is one other possible reason you might be the problems on both your vehicles which didn't occur to me earlier ...

    There is a flap style door which blocks access to the heater core during normal operation. It prevents hot air entering your ducts except when you set your cooling options to heat or a mixture of heat. These doors are usually vacuum controlled. If the vacuum line that goes to that door is damaged, leaking or plugged the door can't open, which has the effect of keeping you from getting warm air to the passenger compartment duct work. Look for the flap on the passenger side of the vehicle, under the dash against the firewall. If you can find it, trace the vacuum hose that connects to it and check that hose for damage or blockage.

  • Randall LaClaire Feb 10, 2009

    I had one other thought today on this problem for both vehicles:

    If you have had any servicing of the cooling system done recently (For example a new lower or upper radiator hose, or flush and fill of the cooling system) air could have gotten trapped in the system. Air in your cooling system can cause all sorts of havoc, including no heat, a higher than usual coolant temperature, and worse. I'd check the vacuum hoses first. If the vacuum hoses are good, move on and check to see if your coolant is low, or see if there is an air bleed valve on your vehicle (usually they are located on the thermostat housing). You might want to take it to a local mechanic and have them check the cooling system for air, as it can be a messy procedure, and spilling coolant on the ground is apt to get you heavily fined by local authorities in some areas.

    If neither of these two solve the problem, then I'd move on to having the system professionally cleaned, flushed and refilled. I wouldn't worry about replacing the heater core unless all of the above fails.


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Try resetting the climate control panel. Push the floor button and the off button at the same time and then push the automatic button. Diagnostic check will start on the climate control unit and after about 20sec will give some fault code numbers. write these down they may be useful. After you have codes push the defrost the exit the diagnostic program. You may hear the vent open and close. This resets the parameters of the actuator motor. If there are no broken internal parts your climate control unit should work again.

Posted on Mar 12, 2009

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Buy an "OWNERS MANUEL". Will explain ALL of your problems.

Posted on Jan 24, 2009

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