w/LT4Compyel. Nothing to worry about
Running too cool.....really
Thread Starter
Team Owner
Joined: Oct 2004
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From: Bergen County, NJ Democrats, doing for the country what they did for Michigan
Running too cool.....really
1990 L98.
Anyway, I took the plastic bag out of my radiator that was causing me to over heat. I decided to put the AC on high and let the car idle to see if it got hot.
Well, there's two cans on the radiator. A large one on the drivers side that seems to always run. And a second smaller fan that I guess goes on and off.
Well, the second fan never came on. So, there are two questions:
1. Should this second litte fan come on right away with the AC
2. Does the second fan come on at a certain tem? 180*. Perhaps the car never got hot enough for it to come on? The needle on the guage was always under 1/2 way, which is pretty cool.
NOW, do I need to start looking for a problem with the second fan? OR am I just looknig for trouble?
Anyway, I took the plastic bag out of my radiator that was causing me to over heat. I decided to put the AC on high and let the car idle to see if it got hot.
Well, there's two cans on the radiator. A large one on the drivers side that seems to always run. And a second smaller fan that I guess goes on and off.
Well, the second fan never came on. So, there are two questions:
1. Should this second litte fan come on right away with the AC
2. Does the second fan come on at a certain tem? 180*. Perhaps the car never got hot enough for it to come on? The needle on the guage was always under 1/2 way, which is pretty cool.
NOW, do I need to start looking for a problem with the second fan? OR am I just looknig for trouble?
Melting Slicks
Joined: Jun 2004
Posts: 3,032
Likes: 4
If your looking for any fans to come on at 180* you're not running stock equipment.
In my 1985-
195* Tstat (stock)
Main fan comes on at about 225*
Aux fan comes on at about 238*
(Those are estimates off the top of my head, my L98 has never gotten hot enough for either one to come on).
In my 1985-
195* Tstat (stock)
Main fan comes on at about 225*
Aux fan comes on at about 238*
(Those are estimates off the top of my head, my L98 has never gotten hot enough for either one to come on).
Team Owner
Joined: Jun 2005
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From: Northern, VA
St. Jude Donor '15
"In honor of jpee"
Just looking for trouble.
Actually, I read on the forum that with the a/c turned on the master fan comes on, regardless of temp. The aux fan does come on a set temp, mostl likely more than 180. Wiser (and cooler) heads will definitely post on what that temp is. I doubt if the car's running too cold. You just may not have gotten it up to the temp where the second fan turns on. That's good news, for now.
Actually, I read on the forum that with the a/c turned on the master fan comes on, regardless of temp. The aux fan does come on a set temp, mostl likely more than 180. Wiser (and cooler) heads will definitely post on what that temp is. I doubt if the car's running too cold. You just may not have gotten it up to the temp where the second fan turns on. That's good news, for now.
Thread Starter
Team Owner
Joined: Oct 2004
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From: Bergen County, NJ Democrats, doing for the country what they did for Michigan
Originally Posted by LT4CompYell
Just looking for trouble.
Actually, I read on the forum that with the a/c turned on the master fan comes on, regardless of temp. The aux fan does come on a set temp, mostl likely more than 180. Wiser (and cooler) heads will definitely post on what that temp is. I doubt if the car's running too cold. You just may not have gotten it up to the temp where the second fan turns on. That's good news, for now.
Actually, I read on the forum that with the a/c turned on the master fan comes on, regardless of temp. The aux fan does come on a set temp, mostl likely more than 180. Wiser (and cooler) heads will definitely post on what that temp is. I doubt if the car's running too cold. You just may not have gotten it up to the temp where the second fan turns on. That's good news, for now.
Burning Brakes
Joined: Aug 2002
Posts: 926
Likes: 2
From: chandler az
I can't remember the year it changed - but - the secondary fan on my '88 is controlled only by the temp sensor in the driver side head. There is no line back to the computer or A/C . The car has to be over 235 or so before it comes on.
Thread Starter
Team Owner
Joined: Oct 2004
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From: Bergen County, NJ Democrats, doing for the country what they did for Michigan
Mystery solved. It is temp related. I had to drive it for quite a while before the second fan kicked on. All's well.
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Thread Starter
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From: Bergen County, NJ Democrats, doing for the country what they did for Michigan
Temp guage sits at 2:00 is that about right with everyone? The guage isn't that specific. It says 100 at one end and 260 at the other.
Thread Starter
Team Owner
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From: Bergen County, NJ Democrats, doing for the country what they did for Michigan
Yes, first year of the new interior. It has the digital speedo and analog guages to the right.
Oil temp just over 100*, about 1:00. Water temp about 2:00, sometimes a little over, 1/2 way to 3:00.
Oil temp just over 100*, about 1:00. Water temp about 2:00, sometimes a little over, 1/2 way to 3:00.
Safety Car
Joined: Feb 2002
Posts: 4,212
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From: Sun City West Az
Originally Posted by jsup
Temp guage sits at 2:00 is that about right with everyone? The guage isn't that specific. It says 100 at one end and 260 at the other.
The primary fan should come on about 226-228 and the secondary about 236-238 deg.
Last edited by ittlfly; Aug 8, 2005 at 09:28 PM.
Le Mans Master
Joined: Mar 2001
Posts: 9,464
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From: Modesto CA
Also, something to note, the digital guages are about 5º colder than acutal coolant temp (in the engine). That's because the sensor is in the front of the intake manifold. No worries though, just thought I would throw that out there.
j/k. the devil made me do dat.
Thread Starter
Team Owner
Joined: Oct 2004
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From: Bergen County, NJ Democrats, doing for the country what they did for Michigan
That's why I can't find it. I don't have it.
Another mystery solved.
So on my analog guage is about 2:00 the right reading?
Another mystery solved.
So on my analog guage is about 2:00 the right reading?
Burning Brakes
Joined: Oct 2002
Posts: 1,060
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From: Dixon Ca
Originally Posted by jsup
That's why I can't find it. I don't have it.
Another mystery solved.
So on my analog guage is about 2:00 the right reading?
Another mystery solved.
So on my analog guage is about 2:00 the right reading?
