Cooling Fans, how low can you go...not this far

[1slickRED89]

Just thought I'd share my experience before this happened to someone else. in an effort to keep things cool on my 1994 ATX Taurus-car I lowered the fan controller set points to a level where both fans ran all the time once it was warmed up. my dataloged ECTs where right at 200F most of the time so I thought I was OK.

and I was, till I melted the alternator and battery.

including the cost of the new/rebuilt parts and the gel-cell I smoked, I could have gone on a nice weekend trip, including gas and a nice hotel. DOUH

 

[NotSoSlowSHO]

You might have some other issues.

Using the tweecer, I have the cooling fan in my '89 turning on right at 190 degrees.

Ive had it like that for a LONG time now.

 

[Axianator]

I have to agree with Kenny on this one. Running the cooling fans for a little bit longer than usual (for some cars) on an otherwise normal electrical system should not cause any problems. If this setup does cause problems, then you have issues elsewhere.

 

[1slickRED89]

an 89 only has one fan, 94 ATX has two.

If this setup does cause problems, then you have issues elsewhere.

I agree with you that a little can't hurt, I just don't think the charging system can do two 30-40 amp fans full-time. I'm open to alternative diagnosis.

 

[whiteman_01]

I have a secondary fan on my '92 that i run all the time when i am in town. Its only a 10 inch but it moves a lot of air mounted as a pusher. But even still, on the HOT days my car will climb right to 225 and stay there till i hit the hwy. I think I need a bigger Rad. But anyways i havent had a prob yet.

 

[NotSoSlowSHO]

an 89 only has one fan, 94 ATX has two.

Yes, one BIG fan, vs two smaller ones. The draw is nearly identical, as is the airflow.