Air conditioning

Tiny
VAUGHNHC
  • MEMBER
  • 2003 LINCOLN TOWN CAR
  • V8
  • 2WD
  • AUTOMATIC
  • 119,000 MILES
V8 two wheel drive automatic 119,000 miles.

The AC compressor now takes about ten to twenty minutes to begin cycling after the car is started with the AC on. When it does begin to cycle, the AC system works perfectly and cools well. Any ideas why it is taking so long for the compressor to start?

Air compressor and dryer have been replaced. System has been recharged.
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Monday, March 28th, 2011 AT 3:32 PM

4 Replies

Tiny
MERLIN2021
  • EXPERT
Check codes by turning key on and hitting the off and floor and codes should display on the display. Post all codes.
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Monday, March 28th, 2011 AT 4:20 PM
Tiny
MERLIN2021
  • EXPERT
Sorry check them this way.
Dual Automatic Temperature Control Module - Display Continuous Codes
This function will display continuous (intermittent) codes and hard faults that occur during
normal operation.
The display of continuous codes can be initiated at any time. Normal operation of the system
stops when the display of continuous codes is activated. Note that " C " will be displayed
while in this mode.
To display continuous codes, press the OFF and PANEL buttons simultaneously and then
release and within two seconds press the AUTO button.
To exit the display of continuous codes, press the FRONT DEFROST button. This will exit
and clear all DTCs. Press the FLOOR button to exit without clearing DTCs set before the last
ignition cycle.
Always exit continuous codes display before powering the system down (system turned off).
Continuous DTCs are saved only after an ignition cycle.
Continuous DTCs will be deleted after 80 ignition switch ON cycles after the intermittent
condition occurs.
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Monday, March 28th, 2011 AT 5:09 PM
Tiny
123CRASH
  • MEMBER
Look at your owners manual for identification of the fuses and relays. Identify the AC clutch in the fuse box on the passengers side under the engine hood. Remove and replace the relay.

If you are inclined to do so, you can swap the horn relay and the AC clutch relay and that will also fix the problem. The horn will still work and the air will have no delay. The AC clutch relay is 204, and the horn relay is 201.
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Tuesday, August 21st, 2012 AT 8:53 PM
Tiny
MERLIN2021
  • EXPERT
Thanks 123crash. This ones kind of old though!
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Tuesday, August 21st, 2012 AT 11:15 PM

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