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2003 Ford Ranger No cold air

Tiny
KEVINB2733
  • MEMBER
  • 2003 FORD RANGER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 230,000 MILES
I had a problem similar to this 2 yrs ago. I replaced a relay and everything was fine.

I swapped out the relay to diagnose the problem last time and I got I could not shut off the COLD but I don't remember which one to put in its place.

Any suggestion?
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Tuesday, April 6th, 2010 AT 9:27 AM

3 Replies

Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Hi kevinb2733,

Thank you for the donation.

Check if the compressor is working. The relay that operates the compressor is the AC clutch relay located in underhood battery junctionbox.

Sorry I am unable to find a location diagram for you.
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Thursday, April 8th, 2010 AT 12:45 PM
Tiny
KEVINB2733
  • MEMBER
  • 5 POSTS
Compressor is working fine. ?
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Tuesday, April 27th, 2010 AT 6:33 AM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
With the compressor working, if there is no cold air blowing, possible causes are :

1. Restricted AC evaporator core or orifice.
2. Low refrigerant level.
3. A/C cycling switch.
4. Temperature blend door actuator control.
5. Engine overheating.
6. Condenser airflow restricted.
7. Heater control valve.

Does the AC blow cold and then start to fade away or it will remain not cold anytime it is turned ON?

Get a pressure test done and let me know the readings of the high and low pressures.
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Tuesday, April 27th, 2010 AT 7:33 AM

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