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1999 Taurus Se Heater Problems


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sjohns
Novice

May 23, 2014, 10:33 AM

Post #1 of 13 (1307 views)
1999 Taurus Se Heater Problems Sign In

When weather became warm heater quit. Digital display on dash works. fuses good. Outside temp reading is 0. help.


Hammer Time
Ultimate Carjunky / Moderator
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May 23, 2014, 12:13 PM

Post #2 of 13 (1295 views)
Re: 1999 Taurus Se Heater Problems Sign In

You're going to have to go into a lot more detail than that.
What engine?

Is it an auto temp system?

Exactly what is not working...... temp? ............blower?

Do other functions work properly?



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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



(This post was edited by Hammer Time on May 23, 2014, 12:13 PM)


sjohns
Novice

May 24, 2014, 12:39 AM

Post #3 of 13 (1273 views)
Re: 1999 Taurus Se Heater Problems Sign In

Thanks for the reply. Motor is Duratech V6 Fuel injected 24 valve. Has automatic climate control. Digital display appears to be OK. indicates each function as selected. Blower does not kick in. Odd thing is the outside temp reading of 0. checked fuses according to Ford Fleet Taurus troubleshooting manual. Tried for diagnostic codes through digital display according to Ford Fleet manual. Engine temp is normal. This morning I am going to see if the blower motor is getting power. I suspect that it is not getting power. Think it is a control problem.


Hammer Time
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May 24, 2014, 1:11 AM

Post #4 of 13 (1271 views)
Re: 1999 Taurus Se Heater Problems Sign In

First, I strongly suggest that you change your user name. The spammers will have a field day with that.

You need to check both power and ground at the motor because ground is likely the control circuit.



~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



(This post was edited by Hammer Time on May 24, 2014, 1:12 AM)


sjohns
Novice

May 24, 2014, 2:20 AM

Post #5 of 13 (1261 views)
Re: 1999 Taurus Se Heater Problems Sign In

Thanks again. Time for me to show how dumb I can be. LOL found two wires going to blower, orange and black. Turned ignition to on. checked for voltage and found none. Does motor have to be running for blower to get power?


sjohns
Novice

May 24, 2014, 2:26 AM

Post #6 of 13 (1260 views)
Re: 1999 Taurus Se Heater Problems Sign In

Follow up: No power to blower motor, I think. Found one orange one black wire, which is which? Does motor have to be running to supply power to blower motor?


Hammer Time
Ultimate Carjunky / Moderator
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May 24, 2014, 2:33 AM

Post #7 of 13 (1259 views)
Re: 1999 Taurus Se Heater Problems Sign In

My guess is this is going to be a bad blower speed controller. Now, if it is, then it was likely caused by a blower motor drawing too much current so that would need to be changed also.









~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.



sjohns
Novice

May 24, 2014, 4:15 AM

Post #8 of 13 (1253 views)
Re: 1999 Taurus Se Heater Problems Sign In

Thanks for your help.


Discretesignals
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May 24, 2014, 7:15 AM

Post #9 of 13 (1249 views)
Re: 1999 Taurus Se Heater Problems Sign In

For the outside temperature reading have you inspected the ambient air temperature sensor located in front of the condenser?





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.


sjohns
Novice

May 24, 2014, 7:33 AM

Post #10 of 13 (1239 views)
Re: 1999 Taurus Se Heater Problems Sign In

Are you talking about the A/C condenser coil in front of the car? The outside temp reading of 0 coincided with the blower going out. Coincidence? Please be specific about location. I have only had this car for a couple of weeks.


Discretesignals
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May 24, 2014, 7:56 AM

Post #11 of 13 (1238 views)
Re: 1999 Taurus Se Heater Problems Sign In

The condenser in front of the radiator. The sensor is located in front of the condenser near the center of the vehicle screwed into a bracket. It shouldn't make the blower quit working, but might have something to do with your outside air temp reading.







Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.


sjohns
Novice

May 24, 2014, 8:02 AM

Post #12 of 13 (1235 views)
Re: 1999 Taurus Se Heater Problems Sign In

Appreciate your help. Will check it out. Can't buy parts til Wed. Will followup.


Discretesignals
Ultimate Carjunky / Moderator
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May 24, 2014, 8:09 AM

Post #13 of 13 (1234 views)
Re: 1999 Taurus Se Heater Problems Sign In

Don't buy any parts yet until you know for sure what the problem is

If you find the sensor, unplug it and check the voltage on the pink/black wire and the red/orange wire with the sensor unplugged using a volt meter connected to battery negative. I'm suspecting the red/orange wire should have 5 volts on it that is sent from the AC control module. If you don't see any voltages on it, it could be the module has an issue or the circuit is grounded.

From there you would have to make your circuit checks at the ac control module. You want to test powers and grounds and the sensor circuit before condemning anything. The ambient temp reading going to zero and the blower quitting might be related if the problem is with the ac control module. Testing would prove that.





Since we volunteer our time and knowledge, we ask for you to please follow up when a problem is resolved.

(This post was edited by Discretesignals on May 24, 2014, 8:12 AM)






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