Question about 2004 Ford Crown Victoria

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Ac/Heater hot code 024 and 051 came up on diagnostic what are these codes

For a long time, we would turn on ac and hot air would come out...we would rearrange the temp number to coincide with heat or a.c eventually it would blow cold with ac on and hot with heater on....finally nothing but hot air and it keeps blowing through the floor even in the off position doing diagnostic codes 024 and 051 came up what are these codes related to?

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  • Contributor
  • 43 Answers

You apparently have a problem with the vacuum doors in the heater/ac unit under the dash. When one of these vac motors fails (won't open and close various flaps), the unit will default to either a defrost setting or floor heat setting. Fixing these is not a do-it yourself job as usually the entire dash has to be pulled to get to the failed parts. Sorry
BTW P024 is exhaust camshaft position timing and 051 is an oxygen sensor error....neither have anything to do with the heater.

Posted on Nov 25, 2014

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  • Ford Master
  • 12,216 Answers

Hi Ruthie
Code 024 has to do with the blend door for the (hvac) system. Hvac being, heating , ventilation , Air Conditioning. The blend door is operated by a electric motor controlled by the HVAC module to adjust the position of the blend door to give heat or A/C. Code 024 states. 024 025 Blend door short or failure There is what ford calls pin point tests to determine if there is a wiring problem or the actuator motor is bad. This could be a very involved Job , sometimes the dash has to be taken apart to get at these parts.
Your code 051 is for 051 A/C solar radiation sensor open circuit A/C SOLAR RADIATION SENSOR CIRCUIT SHORT These type of jobs are not for someone who hasn't done this kind of stuff before ! You could get service information from www.alldata.com for you vehicle . cost around $16.00 for a year. Look at what is involved, maybe boy friend, husband could do it if he is handy ! Good luck

Posted on Nov 25, 2014

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Posted on Jan 02, 2017

Bloomingidoi
  • 49 Answers

SOURCE: Heater only blows hot (well, warm) on full speed of fan

Replace the temp control on this car, it should be electrical control not cables.

Posted on Dec 03, 2008

  • 141 Answers

SOURCE: heater on ford 2003 ford pick up blows cold air

on the evap box there is a control mtr that switches the hot cold door. these mtrs are prone to failure. the other problem that i have seen is that the door breakes in side the evap box and that means removing the box to replace the door . if i remeber correctly you may have to slide the dash back to gain assces to the control mtr to test it good luck

Posted on Dec 22, 2008

localwonder
  • 6784 Answers

SOURCE: heater is blowing but its cold air not hot air 2000 expedition

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

emissionwiz
  • 76691 Answers

SOURCE: heater blows cold air ac blows warm air

Your problem is the air temp control blend door actuator is defective and not controlling temp u set. to change/access this part the dash assembly must be removed from the car.

Posted on Mar 24, 2009

  • 290 Answers

SOURCE: ford ka heater blows hot air all the time

Taurus does not use a heater control valve. It runs coolant thru the heater core constantly. You may have a temp blend door actuator problem or a plugged up heater core is also very common. Feel the heater hoses, they should both be very hot, it one is much cooler; you can try to back flush the core.

Posted on Mar 26, 2009

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My ac was working fine then one day it stopped and now only hot air blows out the mechanic said the ac is fine and works good but there is a vent door that switches the ac to heater and he said it was...


There is a blender that controls the air flow to go through the heater core for heat, and the evaporator for AC. It very well could be stuck.

You maybe able to try and get it to get unstuck by running the cars AC and switching from heat to AC back and forth and see if it gets unstuck. Just turn it on full blast and go from heat to cool.

If that fails, then you may need to service it. There should be a Lever Marked VENT under the dash, usually by the Brake and other pedals on the Driver's Side. Close the VENT and that will stop the Air from coming in and leave the A/C Blowing through the outlets(Vents).

I also read this online if you have an electronic climate control. "On climate control press off and heat button and let go quickly. Then press automatic. The display will start rotating eventually displaying a code 025,125 , 024 etc. Then press defrost to stop. You may hear blend door operating atb that time. It worked for my climate control."

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