Engine temp
Thread Starter
Instructor
Joined: Jul 2004
Posts: 243
Likes: 0
From: Surprise Az
Engine temp
What should my temp go up too, I was in the drivethru the outside temp was 75, my engine temp went up to 228 then back down to 198. My vehicle runs at 190 when iam driving and sometimes when Iam stopped in traffic it goes up to 228-230, should I be concerned? 
Team Owner
Joined: Mar 2001
Posts: 21,325
Likes: 3,841
From: small town in S.E Pa. PA
St. Jude Donor '03-'04
Originally Posted by 98 corvette
What should my temp go up too, I was in the drivethru the outside temp was 75, my engine temp went up to 228 then back down to 198. My vehicle runs at 190 when iam driving and sometimes when Iam stopped in traffic it goes up to 228-230, should I be concerned?
you mentioned. infact normal temp can be up too 235F thats when the high speed fans will come on to cool the car back down..
here is the stock program for fan settings:
Depending on the model year...
For later model years:
The low speed cooling fan is commanded on when the coolant temperature reaches 108°C (226°F). It is turned off if the coolant temperature lowers to 104°C (219°F). The high speed cooling fan is commanded on when the coolant temperature reaches 113°C (235°F). It is turned off if the coolant temperature lowers to 108°C (226°F). When the A/C is on and the coolant temperature reaches 85°C (185°F), the low speed cooling fan will be turned on at vehicle speeds less than 56 kPh (35 mph).
For early model years:
Low speed fans come on at 219,high speed fans come on at 228,low speed with a/c on...
Team Owner
Joined: Mar 2001
Posts: 21,325
Likes: 3,841
From: small town in S.E Pa. PA
St. Jude Donor '03-'04
Originally Posted by 98 corvette
What should my temp go up too, I was in the drivethru the outside temp was 75, my engine temp went up to 228 then back down to 198. My vehicle runs at 190 when iam driving and sometimes when Iam stopped in traffic it goes up to 228-230, should I be concerned?
you mentioned. infact normal temp can be up too 235F thats when the high speed fans will come on to cool the car back down..
here is the stock program for fan settings:
Depending on the model year...
For later model years:
The low speed cooling fan is commanded on when the coolant temperature reaches 108°C (226°F). It is turned off if the coolant temperature lowers to 104°C (219°F). The high speed cooling fan is commanded on when the coolant temperature reaches 113°C (235°F). It is turned off if the coolant temperature lowers to 108°C (226°F). When the A/C is on and the coolant temperature reaches 85°C (185°F), the low speed cooling fan will be turned on at vehicle speeds less than 56 kPh (35 mph).
For early model years:
Low speed fans come on at 219,high speed fans come on at 228,low speed with a/c on...
Race Director
Joined: May 2001
Posts: 15,324
Likes: 2,079
From: Guelph, Ontario
I had my fans reprogrammed to come on sooner and now my coolant temp never goes above 194 in traffic. It helps keep the oil temp lower too, it's usually around 200 in traffic.
At a steady 70-75mph, my coolant is around 189-190F, and oil is around 205-207F then.
At a steady 70-75mph, my coolant is around 189-190F, and oil is around 205-207F then.
Team Owner
Joined: Mar 2001
Posts: 21,325
Likes: 3,841
From: small town in S.E Pa. PA
St. Jude Donor '03-'04
Originally Posted by Patman
I had my fans reprogrammed to come on sooner and now my coolant temp never goes above 194 in traffic. It helps keep the oil temp lower too, it's usually around 200 in traffic.
At a steady 70-75mph, my coolant is around 189-190F, and oil is around 205-207F then.
At a steady 70-75mph, my coolant is around 189-190F, and oil is around 205-207F then.
Race Director
Joined: May 2001
Posts: 15,324
Likes: 2,079
From: Guelph, Ontario
Originally Posted by Evil-Twin
What temps did you reprogram too.?
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Melting Slicks
Joined: Jul 2004
Posts: 2,846
Likes: 5
From: Sandy Ego CA
Here is So Cal my 04 runs at 220 all of the time, even on the freeway, I did install a 160 stat but as you probably know that won't do a thing until I get the fans adjusted when I get it dyno tuned next month. What I did notice is that it is RPM related, when blazing through the back roads and canyons the temp follows the RPM's I'm pushing, the faster I drive the hotter it gets, when I back it down a little the temps come down. I think I'm just getting to know this car, and Man Do I Love This Car.