1998 Saturn SC2 Radiator Fan not turning on

Let's do this put your fan motor back in look over by your battery you will see your a/c line there will be switch attached to the line with two wire's going to it. Unhook the connector to it now start your car and turn the a/c on. Now jump the two terminals together to that connector you took off for a few second's did the cooling fan come on?

My idea was if the fan came on when you jumped it then I was going to tell you to replace the coolant temp sensor. Also if the sensor was leaking into the connector I was going to have you inspect the connector to see if it was corroded and if it was replace the connector. So look's like you just need to replace the connector now.I get my connector's from pick a part. Let me know how you make out after you replace that connector.

Was there any charge in the a/c system before you charged it?Also how many ounce's did you put in?Did you get a charging hose that has a gauge on it to tell you if your under charged over charged etc?

To charge the system fully it take's two full 12 ounce can's of charge so if they were 12 ounce can's and the first one wasn't full then you could be a little low on charge causing it to no cool properly.I would ask him how full that first can was and what size the can's were that way you can figure out about how much you have in there. Also if he had a gauge you could figure out if it was under or over charged. If your in the mid's to upper 20's pressure then it's good. If your way above 30 then you have too much in there.

Sounds good I was talking about the 30 plus when the car was idling with the a/c on.I thought you said the system was empty before you charged it?I guess it wasn't if it was reading over 30 before you charged it. Unless you were reading the pressure in the can?

Having to overcharge the compressor to make it come on isn't a symptom of a bad compressor the way you tell it is bad is to charge it up with 24oz's of charge and measure the high and low pressure's on the a/c system while the compressor is running and if there reading a certain pressure then you have a bad compressor. What turn's the compressor on and off is the high/low switch screwed onto the a/c line by the battery. If it sense's too high or too low of charge in the system it will turn the compressor off until the correct pressure return's.

If your car never get's past a 1/4 on the gauge normally then you live in a very cold climate and it never gets very hot or you have a bad thermostat. It's normal to get up to the 1/2 way mark the fan doesn't even come on till you get past the 1/2 mark. As far as your car cutting out I would check for code's check your spark plug wire's plug's. Check your fuel pressure and see if your fuel filter is clear you should be able to blow threw it with little effort if you can't then you need to change it.

I emailed you the location and how to replace the fuel filter they get changed every 100,000 mile's and by that time are pretty restricted. To check it you would remove the filter and dump all the gas into a container and I know this sounds gross but blow into the nipple that hooks to the hose off the gas tank. You should be able to blow threw it with little effort if you can't you need a new one. As far as living texas and your car running at 1/4 on the gauge then you need to replace the thermostat or your gauge isn't reading correctly. But since you already replaced the sensor and connector then the gauge is probably reading correctly so replace the thermostat. Also as far as your coolant boiling over the cap at the half way mark you probably just have a bad cap that's not holding pressure. To find the thermostat follow the lower radiator hose to the engine block it's at the end of the hose in that housing that's bolted to the block.