When freon is insufficient, there would be insufficient pressure in the system and the pressure switch would not allow the compressor to be turned on.
Even if the fans are not working, you need not worry about it unless you are having overheating issues.
When you jumped the fan switch, the radiator fan did not work?
The fan requires quite a large current draw so it can spark but too much resistance could mean the fan motor is bad, shorted internally causing the sparks.
Start the engine and allow it to run till the temperature reaches normal reading, should be about 1/2 way in the gauge. As long as the temp does not go above 3/4, continue to run and watch the radiator fans, if they come on angd goes off intermittently, there is nothing to worry about.
The cooling system is good, only the AC system is not.
Thursday, March 11th, 2010 AT 6:05 AM