vette running hot 220 degrees
Drifting
Joined: May 2012
Posts: 1,336
Likes: 15
From: Mechanicsburg PA
Central PA Events Coordinator
St. Jude Donor '12-'13
Depending what year you have...
In my 93 - its normal... designed to run hotter.
The first fan won't kick on until 226*. The second fan kicks on @ 235*.
If the A/C is turned on - the fans turn full time regardless the water temp is at.
[Explained in the FSM how to diagnose the cooling fans.]
In my 93 - its normal... designed to run hotter.
The first fan won't kick on until 226*. The second fan kicks on @ 235*.
If the A/C is turned on - the fans turn full time regardless the water temp is at.
[Explained in the FSM how to diagnose the cooling fans.]
Last edited by Bandit's C4; Jul 1, 2012 at 07:48 PM.
Le Mans Master
Joined: Mar 2004
Posts: 5,107
Likes: 171
From: Dublin CA
A lower thermostat would help.
First check between the radiator and the condenser. Corvettes are known as bottom feeders and there can be a build up of leaves, bags and all sorts of other things between the two. Clean this area out and your car should run cooler.
First check between the radiator and the condenser. Corvettes are known as bottom feeders and there can be a build up of leaves, bags and all sorts of other things between the two. Clean this area out and your car should run cooler.
Team Owner
Joined: Dec 1999
Posts: 34,873
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From: Lacey WA RVN 68-69
NCM Sinkhole Donor
You might want to start by cleaning the dirt and debris from between the tubes of the A/C condenser and the radiator. C4's are "bottom breathers" and it's easy to get all sorts of junk in front of them. Look up under the front license plate and you will see!!
When was the last time a cooling system service was done? Sometimes a simple flush and refill of the cooling system helps a bunch. How old is the pressure cap? Cheap to replace with a new one.
As far as bypassing the coolant passage in the TB, all you need is something like a 6" piece of brass tube and a pair of hose clamps. But the idea behind coolant going thru the TB is to help with warmup and letting the ECM go into closed loop quicker.
When was the last time a cooling system service was done? Sometimes a simple flush and refill of the cooling system helps a bunch. How old is the pressure cap? Cheap to replace with a new one.
As far as bypassing the coolant passage in the TB, all you need is something like a 6" piece of brass tube and a pair of hose clamps. But the idea behind coolant going thru the TB is to help with warmup and letting the ECM go into closed loop quicker.
Advanced
Joined: Jun 2009
Posts: 96
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From: Victoria Harbour
You might want to start by cleaning the dirt and debris from between the tubes of the A/C condenser and the radiator. C4's are "bottom breathers" and it's easy to get all sorts of junk in front of them. Look up under the front license plate and you will see!!
When was the last time a cooling system service was done? Sometimes a simple flush and refill of the cooling system helps a bunch. How old is the pressure cap? Cheap to replace with a new one.
As far as bypassing the coolant passage in the TB, all you need is something like a 6" piece of brass tube and a pair of hose clamps. But the idea behind coolant going thru the TB is to help with warmup and letting the ECM go into closed loop quicker.
When was the last time a cooling system service was done? Sometimes a simple flush and refill of the cooling system helps a bunch. How old is the pressure cap? Cheap to replace with a new one.
As far as bypassing the coolant passage in the TB, all you need is something like a 6" piece of brass tube and a pair of hose clamps. But the idea behind coolant going thru the TB is to help with warmup and letting the ECM go into closed loop quicker.
I had the same problem, clean first , if thats not it,then get a new rad.
New rad workrd for me.
Instructor
Joined: Apr 2012
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From: Norcross Georgia
Safety Car
Joined: Jan 2004
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From: Anaheim CA
The stock thermostat is 195 degrees. If you are running at 220 degrees (which is normal), that should tell you that the thermostat is not what is controlling the temperature and changing it will make no difference.
Coolant temperature is a function of how hard the engine is working, coolant flow through the radiator, airflow through the radiator, whether the A/C is on (extra heat from the condenser) and the fan(s) -- and when they are programmed to come on.
Coolant temperature is a function of how hard the engine is working, coolant flow through the radiator, airflow through the radiator, whether the A/C is on (extra heat from the condenser) and the fan(s) -- and when they are programmed to come on.
Le Mans Master
Joined: Nov 2009
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From: Bangkok, Thailand
Advanced
Joined: Jun 2012
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From: Zimmerman MN
Melting Slicks
Joined: May 2007
Posts: 2,075
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From: Longmont Co
The stock thermostat is 195 degrees. If you are running at 220 degrees (which is normal), that should tell you that the thermostat is not what is controlling the temperature and changing it will make no difference.
Coolant temperature is a function of how hard the engine is working, coolant flow through the radiator, airflow through the radiator, whether the A/C is on (extra heat from the condenser) and the fan(s) -- and when they are programmed to come on.
Coolant temperature is a function of how hard the engine is working, coolant flow through the radiator, airflow through the radiator, whether the A/C is on (extra heat from the condenser) and the fan(s) -- and when they are programmed to come on.
That temp is normal, and a lower therm will not have any effect.
Thread Starter
Intermediate
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here you are: http://forums.corvetteforum.com/1580186382-post1.html