'96 cooling fans wont come on...ideas?
04-26-2007, 10:13 PM
#1
Instructor
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'96 cooling fans wont come on...ideas?
Hi
I recently purchased a 96 Corvette and I have noticed the cooling fans dont come on unless I turn the a/c on. I had the temp on the dash come up to 225 with no fans. As soon as I turn on the A/C the fans come on high and cool the car down. Any ideas where I should start looking?
What is the "on" and "off" temps of the fan?
I dont want to start driving the car until I know the fans are working correctly.
Thanx!
I recently purchased a 96 Corvette and I have noticed the cooling fans dont come on unless I turn the a/c on. I had the temp on the dash come up to 225 with no fans. As soon as I turn on the A/C the fans come on high and cool the car down. Any ideas where I should start looking?
What is the "on" and "off" temps of the fan?
I dont want to start driving the car until I know the fans are working correctly.
Thanx!
04-26-2007, 10:15 PM
#2
Le Mans Master
Member Since: Jan 2006
Location: Woodstock Georgia
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Hi
I recently purchased a 96 Corvette and I have noticed the cooling fans dont come on unless I turn the a/c on. I had the temp on the dash come up to 225 with no fans. As soon as I turn on the A/C the fans come on high and cool the car down. Any ideas where I should start looking?
What is the "on" and "off" temps of the fan?
I dont want to start driving the car until I know the fans are working correctly.
Thanx!
I recently purchased a 96 Corvette and I have noticed the cooling fans dont come on unless I turn the a/c on. I had the temp on the dash come up to 225 with no fans. As soon as I turn on the A/C the fans come on high and cool the car down. Any ideas where I should start looking?
What is the "on" and "off" temps of the fan?
I dont want to start driving the car until I know the fans are working correctly.
Thanx!
Run it up and watch the digital gauge. Bet you don't have a problem at all.
04-27-2007, 07:08 AM
#4
Le Mans Master
I’m not sure about this, but I thought both fans came on at the same time for a 96. Either with the A/C activation, or reaching a specific temperature. At this point it would be low speed for the fans. Then at the higher temperature point, both fans would kick into a higher speed to increase cooling.
Anyone verify this, yes—no.
04-27-2007, 07:20 AM
#5
Le Mans Master
Just wondering, I know this is correct for a 94 model year. But I thought a 96 had a different set up and control configuration.
I’m not sure about this, but I thought both fans came on at the same time for a 96. Either with the A/C activation, or reaching a specific temperature. At this point it would be low speed for the fans. Then at the higher temperature point, both fans would kick into a higher speed to increase cooling.
Anyone verify this, yes—no.
I’m not sure about this, but I thought both fans came on at the same time for a 96. Either with the A/C activation, or reaching a specific temperature. At this point it would be low speed for the fans. Then at the higher temperature point, both fans would kick into a higher speed to increase cooling.
Anyone verify this, yes—no.
04-27-2007, 02:33 PM
#7
Racer
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wow,thanks guys . i was wondering about that also. Just the other day on my '94 i had it sitting in the drivway running and only one fan kicked on. I was wondering if the other fan was not working.So they are set at different temps. cool......
04-27-2007, 11:10 PM
#8
Drifting
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Location: 2010 C6 Grand Sport Convertible
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These beasts run hot!Mike
04-28-2007, 08:07 AM
#9
Safety Car
Hi
I recently purchased a 96 Corvette and I have noticed the cooling fans dont come on unless I turn the a/c on. I had the temp on the dash come up to 225 with no fans. As soon as I turn on the A/C the fans come on high and cool the car down. Any ideas where I should start looking?
What is the "on" and "off" temps of the fan?
I dont want to start driving the car until I know the fans are working correctly.
Thanx!
I recently purchased a 96 Corvette and I have noticed the cooling fans dont come on unless I turn the a/c on. I had the temp on the dash come up to 225 with no fans. As soon as I turn on the A/C the fans come on high and cool the car down. Any ideas where I should start looking?
What is the "on" and "off" temps of the fan?
I dont want to start driving the car until I know the fans are working correctly.
Thanx!
From the 1996 GM manual
"the PCMwill command low speed fans ON at 219F and OFF at 207F and, high speed ON at 228F and OFF at 214F"
....when relay 1 is energized both fans run in low speed, when all three relays are energized both fans run at high speed...
also fans run with a/c on
There are two fans, they are either both on or off, if on they run either low speed or high speed...
