Question about 2003 Kia Sedona
Two problems 1 the heater is not blowing hot air replaced the thermostat it was ok for about a week then would not blow hot air 2 my nobs that blower speed is not working right high maybe low and low maybe high and you have to tape it very lightly to make it come on and some times a bump in road will make turn off so I need to know how to get into the dash change or see if a wire is loose thank you
Is there like brown in the water reservoir or all around the engine ?
head gasket may be gone
Posted on Mar 19, 2014
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Posted on Jan 02, 2017
SOURCE: fan motor problem
usually its the heater resistor that causes that. find it and check it out, this controls all fan speeds. its under the passengers side glove box, take off wiring then remove 2 screws and then it will drop out.
Posted on Jul 26, 2010
Posted on Dec 22, 2010
For those of you who may google this link and are looking for an solution, my local repair shop isolated my 2005 Amanti problem to a $2.78 plastic clip on the temperature blend door actuator rod linkage. It simply fatigued and eventually broke resulting in the actuator rod falling off the actuator door lever. The labor to isolate the problem and to replace the clip did amount to almost $170. Hope this helps those of you in the future.
Posted on Jan 21, 2011
First, I guess you realize that the heater is part of your engine cooling system. Then it also has its own parts inside the vehicle that have absolutely nothing to do with the engine cooling system.
The trick to getting your heater working is to first determine which part of the heater system has the problem.
First, you need to verify proper engine cooling system operation. There is more to this than just replacing a thermostat. If you have a problem like a blown head gasket, you r heater will not work. What SHOULD be done is to operate the engine while watching the computer data for the engine coolant temperature sensor (ECT). Doing This, you can verify that the engine is warming up to operating temperature. You can also verify that the thermostat is opening at the correct temperature. Then take an infrared thermometer and take a manual reading from the engine near the temperature sensor. The reading you get from the thermometer should be within about 5 degrees of the reading that the computer is getting from the ECT. The engine cooling fans should come on between 220 and 228 Deg. F. When they do come on, the air that is blowing through the radiator should be HOT. If it is not, this is an indication that the radiator is stopped up, the water pump is not pumping correctly, or there is a blown head gasket that is filling your cooling system with combustion gasses. This can be done with just the thermometer, but it is best to also verify the ECT computer data.
If all of this is working properly, then it is time to look INSIDE the car for the problem. The blend-air door in your A/C-heater housing may not be working. When you switch the temperature control inside the car, you should be able to HEAR a change in the air flow. This applies to ALL vehicles, whether they are equipped with cable, vacuum, or electronically controlled blend air doors. If you cannot hear a difference in the sound of the air moving through the A/C-Heater housing, then chances are pretty good that the problem is with your blend-air door. If this seems to be the problem, let me know and I can give you further instructions on how to check this and/or repair the problem.
P.S. Just thought I'd mention that a pretty good infrared thermometer can be purchased at any parts store for around $40.....This is a very good investment because you can use it for many other things and is a lot cheaper than an hour of diagnostic time at most repair shops.
Posted on Dec 05, 2011
Engines can rock on the motor mounts. You probably have a vacuum line that is pinched, cracked, broken,kinked, or unhooked. check the engine compartment lines first. If you have thin plastic vacuum lines, they can kink more easily than rubber lines. If you have been working under the dash (replacing a radio, etc) check your work area in case you have a broken fitting on a vacuum housing or an unhooked line.
Posted on Dec 13, 2011
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