Cooling Fans Temp Setting
Thread Starter
Pro
Joined: May 2003
Posts: 503
Likes: 16
From: Virginia Beach VA
Cooling Fans Temp Setting
What's the best way to lower the temperature so that your radiator fans come on a lower temp? I've heard it involves a reprogramming process. Or is it simply replacing the sensors?
96 LT1 auto
96 LT1 auto
Team Owner
Joined: Dec 1999
Posts: 34,873
Likes: 487
From: Lacey WA RVN 68-69
NCM Sinkhole Donor
Remember that the C4's are designed to run with slightly higher coolant temps to help with emissions. Temps in the high 190's to 200-205 are perfectly normal. Even 210-215 in hot weather is not a problem.
The secondary fan doesn't come on until 238 or so. If you are seeing high temps, it may be time to clean out the gaps between the radiator tubes and fins. Same with the A/C condenser. Plug up the airflow and the radiator will not cool as effectively as it should.
The secondary fan doesn't come on until 238 or so. If you are seeing high temps, it may be time to clean out the gaps between the radiator tubes and fins. Same with the A/C condenser. Plug up the airflow and the radiator will not cool as effectively as it should.
Le Mans Master
Joined: Jan 2006
Posts: 5,621
Likes: 206
From: Orlando FL
Remember that the C4's are designed to run with slightly higher coolant temps to help with emissions. Temps in the high 190's to 200-205 are perfectly normal. Even 210-215 in hot weather is not a problem.
The secondary fan doesn't come on until 238 or so. If you are seeing high temps, it may be time to clean out the gaps between the radiator tubes and fins. Same with the A/C condenser. Plug up the airflow and the radiator will not cool as effectively as it should.
The secondary fan doesn't come on until 238 or so. If you are seeing high temps, it may be time to clean out the gaps between the radiator tubes and fins. Same with the A/C condenser. Plug up the airflow and the radiator will not cool as effectively as it should.
However,This is a 96 and there is no "secondary fan". Both fans run together either high or low speed.
Low speed is with A/C on or at about 228*. And high speed is at about 239*.
VA50 - What are you temperatures and why do you want to reprogram.
Thread Starter
Pro
Joined: May 2003
Posts: 503
Likes: 16
From: Virginia Beach VA
...im not sure i do....right now on the digital...while driving around town I see 205-210......up until about it week ago it hardly ever got above 200-205...so ive seen a slight increase.....i guess its not a problem.
Thanks for all the input
Thanks for all the input
Team Owner
Joined: Dec 1999
Posts: 34,873
Likes: 487
From: Lacey WA RVN 68-69
NCM Sinkhole Donor
His temps do sound fine, but it would be a good idea to inspect the radiator and A/C condenser for debris and probably do a coolant system flush and refill with fresh Dexcool. Might be worth replacing the lower radiator hose if it's original.
