Compressor won't engage


Asked by Jul 15, 2016 at 04:15 PM about the 2003 Ford Taurus

Question type: Maintenance & Repair

I need to clarify something on my previous question. I had the compressor replaced on my 2003 Ford Taurus and the system was fully charged. When I turned on the A/C switch, the compressor did not come on. I found the relay that sent power to the compressor, and when I forced the contacts together, the compressor came on and I had air conditioning. I replaced the relay, but no change, and all the fuses seem to be OK. This worked for a few days, but then it was no longer blowing cold air. There may be a Freon leak, but there is still the question of why I have to force the relay to send power to the compressor.

3 Answers


If system is completely empty of refrigerant compressor will not come on. It will come on if you force the relay to make it come on but no cold air will come out because the system is empty of freon.


The reason why the compressor does not come on when the system is empty of freon is to let you know the system is empty and when the compressor is clicking on and off letting you know the system is low on freon.


So if the system is full of freon and you are still having this problem post back.

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