Are you having problems with the climate control system on your 2002-2005 Thunderbird? Is it blowing only hot air? Causes for problems with the climate control system fall into one of several categories:
(1) Defective A/C compressor
(2) A/C compressor is low on refrigerant
(3) the ‘blend doors’ inside the dashboard are jammed either in the open or closed position,
(4) the electronic controls of the unit itself are not functioning properly.
Before you take your Thunderbird to the dealer or independent repair shop, try this step to unstick the plenums or ‘blend doors:’ Using the temperature control toggle switches on each side of the unit, press the up position to the highest temperature setting and hold for 30 seconds. Then hold the switch in the ‘down’ or lowest temperature setting and hold for 30 seconds. Repeat this process on each side of the dual climate control unit twice. This procedure can reset or ‘unstick’ the blend doors mechanically.
If this reset doesn’t solve the problem, have your shop or Ford dealer verify that the A/C system has sufficient refrigerant. Refrigerant can degrade, evaporate or leak, and you may only need a ‘top off’ to get your A/C system blowing cold again. This is a lot less expensive than a new A/C compressor, so be sure your mechanic or dealer checks that first before you pay for an expensive compressor replacement. There may also be a leak in one or more of the A/C system hoses. Have those checked also.
Climate Control Self Diagnosis
The climate control unit can also perform a self-diagnosis and will display various codes that will help isolate the problem. Here are instructions on running the system’s self diagnosis along with the codes and possible sources:
If the refrigerant level is normal, and the compressor is working, and there are no leaks in the system, the problem may be the in-dash climate control unit itself. Once the other possible sources of the problem have been ruled out, have your dealer or mechanic determine if the problem is the control unit. If so, the unit will need to be repaired/reconditioned. Again, your Ford dealer doesn’t perform electronic repairs in house. They will remove the defective unit and send it to an outside automotive electronic specialist for repair. The mark-ups on outsourced repairs can vary widely. Get an itemized estimate for parts and labor before you authorize repairs.
For more information on our Dual Climate Control Repair Service, click here: http://www.thunderbirdspecialties.com/shop/2002-2005-thunderbird-oem-climate-control-unit-repair/