Cooling fan issues…

Twice in the last two weeks I have noticed my car getting hotter than normal while driving. Of course I stop to check everything and notice that the cooling fan is not running. After checking all of my fuses and what not, I decided to turn on my AC and of course my cooling fan turns on. Once I turn my AC off the cooling fan works normally. I have put over 700 miles on my car since it started having cooling fan problems so it’s not an everyday problem.

In addition I replaced cooling fan and temperature sensors less than a year ago. Furthermore I have a low temp cooling fan sensor and thermostat, everything kicks in at 180.


MY CAR: 1992 Chevy Camaro RS, TBI, V8 (slightly over one hundred thousand miles)

Any suggestions on what I should check or how I can solve this problem?

 

Working out the wiring on the Camaro isn't helped by the regular manuals at all. So it is hard to be sure what the arrangement is. But it sounds like the fan relay is sticking, and that relay might be related to the A/C relay.
When you switch on the A/C the required relay cuts in and stays on. So it sounds like you need to check the fan and A/C relay and wires.

 

Can someone please help me with this...

 

I think Andy hit it on the head. Or do you mean help you with finding the relay and whatnot?

If you go to a book store like Barnes&Noble or Borders (spelling?) you can find a Chilton or Haynes Repair Manual. You may even find one of the two at your local auto parts store.

Depending on where you live concerning the weather, and you want a quick fix, you can just unplug the A/C for now. It's the black plug right behind the compressor. Just make sure you wrap it in elec. tape so that it doesn't ground out. Then turn on your A/C. The ECM will still turn on the fan, but the compressor won't kick on. That way you won't waste all that gas by having the A/C on all the time.

You'll still have heat, but you won't have A/C. Just slide the temp selector on your controls over to "Hot". If you need A/C because of hot weather, or to make your windshield defogger work, you'll have to plug the compressor back in.

Keep in mind that this is a temporary fix, only to keep your car from overheating. I wouldn't let it do this for long. Pay to have it fixed if you think that it's beyond your skills. The damage from an overheated engine is VERY expensive compared to what it costs to have the fan fixed.

AJ

 

I would suggest replacing the fan relay. They are prone to develop intermittent operation.

 

here's something unrelated that you might wanna check just for the hell of it: your front air dam. that's the thing under the front that directs air up into the radiator. if it's cracked, bent, or missing, you might not be getting enough air over the radiator to cool everything down.