Question about 1995 Ford Thunderbird
You need to check both heater hoses for circulation when the engine is warmed up and the heater is set for heat. If both hoses are equally hot, water is circulating. This means the heater core and water valving are delivering heat. You would then look for ductwork problems that are failing to route the air under the dash past the heater core.
If the heater hoses under the hood are not equally hot, then you would check to see if the water flow valving is working and what is preventing the flow. In worst case scenario, the heater core is blocked. Try disconnecting the heater hoses and using a garden hose to verify a blockage. Reversing the flow could also clear a blocked core.
Finally, some Digital Climate controls have a diagnostic sequence which can be activated to self-diagnose some problems. This is more difficult to obtain this info because you need the matching Codes to decipher the results. Dealers would have this info.
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Posted on Jan 03, 2013
It possible to a big leaf or a plastic bag stuck where ur blower motor is. Check in ur blower motor compartment for debris.
Posted on Jan 03, 2013
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Posted on Jan 02, 2017
SOURCE: air condition/heater
sounds like the air-conditioning expansion valve is probably not working correctly here is a way you can fix your air conditioning:
Posted on Jun 05, 2008
guys have you checked for a vaccum leak????? there is a little plastic ball with a vaccum line going to it that controls the outside air coming in. check for a leak in this line
Posted on Jan 08, 2009
Make sure the heater core is in the open position by using the shut off valve and turning it to open. next, you may have a malfunction in the direction door the directs the air flow in the dash. a lever may have become lose or separated. may be a bad servo motor not directing the door to move to the heater position. i would start by checking that shut off valve first on the heater core.
Posted on Mar 13, 2009
SOURCE: Heater blows cold air.
heater cores clog in taurus. way to know is this--engine fully hot--heat on reach down to the fire wall and grab hold of one of the heater hoses where it hooks to the core--one should be real hard to keep hold of because its that hot. If the other is close to the same the core is not clogged. But if the other is cold to the touch its clogged. You can remove the hoses and shoot garden hose water in one side or the other and break it loose usually
Posted on Apr 07, 2009
That is usually the first symptom of low coolant. Not enough water in the system to circulate through the heater core. Has it been running hot?
Check the coolant level in the radiator
Posted on Sep 23, 2009
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Oct 09, 2016 | 2000 Cadillac Seville
Jan 23, 2013 | 2001 Audi A6
Temperature Control Blend Door Failure No Heat or no AC (dependes on
where door sticks)
all modern cars there is a tiny DC electric motor driven gear drive
that moves a plastic door that blends heated and cooled air from the
AC and the heater core, this is called (interestedly enough) the air
temperature control blend door actuator. The motor that moves this
door fails because the door starts sticking from warping, most common
complaint is no heat but it can be no AC as well. To replace these
parts (blend door and blend door actuator) you must remove the entire
dash from the car. Always have this problem confirmed by a dealer or
qualified repair shop as it is a very expensive repair.
Other causes of no heat in the cabin are engine thermostats that are stuck open (engine runs cold) or air bubbles in the cooling system.
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