C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

c4 temp sensor

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Old Jan 11, 2015 | 03:49 PM
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Default c4 temp sensor

i was thinking of installing the temp sensor from the tbi to the left head it woul read higher temp and turn on the fans sooner i was wondering has this been tried befor,thanks
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Old Jan 11, 2015 | 09:57 PM
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Anything "can" be done. Question is, what are you really wanting it to do? if you just want the fan to come on sooner, it'd be a lot easier to adjust the fan switch that's already installed. A lot of people have added a switch located in the cabin that they can flip to have the fan come on anytime they want. But, if you really want the fan to come on based solely on the left head temp, more power to you.
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Old Jan 12, 2015 | 07:19 AM
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Originally Posted by Jaxley
Anything "can" be done. Question is, what are you really wanting it to do? if you just want the fan to come on sooner, it'd be a lot easier to adjust the fan switch that's already installed. A lot of people have added a switch located in the cabin that they can flip to have the fan come on anytime they want. But, if you really want the fan to come on based solely on the left head temp, more power to you.
thank you for replying i have a dewitts rad elerbrock water pump just finished the heads using fel pro 1010 gaskets larger coolant passages for better flow and a 195 thermostat and i use evens coolant i have a switch to turn on the fans the engine does not run hot i just don't like the fan going on at 235 or higher the reading is at the left head using temp gun i would like it to come on at 220
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Old Jan 12, 2015 | 07:54 AM
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Originally Posted by chazc4
thank you for replying i have a dewitts rad elerbrock water pump just finished the heads using fel pro 1010 gaskets larger coolant passages for better flow and a 195 thermostat and i use evens coolant i have a switch to turn on the fans the engine does not run hot i just don't like the fan going on at 235 or higher the reading is at the left head using temp gun i would like it to come on at 220
You might share a little more information regarding "your car". You mention tbi in your original post and that would indicate an '84 but your further explanations maybe aren't confirming that.

Your original post:

Originally Posted by chazc4
i was thinking of installing the temp sensor from the tbi to the left head it woul read higher temp and turn on the fans sooner i was wondering has this been tried befor,thanks
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Old Jan 12, 2015 | 08:20 AM
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Originally Posted by WVZR-1
You might share a little more information regarding "your car". You mention tbi in your original post and that would indicate an '84 but your further explanations maybe aren't confirming that.

Your original post:
its a 1990 tuned port injection just that i would prefer that the fans came on earlier i was thinking of rewiring with a after market fan controller their is one that is adjustable and has a provision for ac but i was looking to see if i could do it with out major surgery I love this car rebuilt it from bumper to bumper and i painted it too one thing i have learned next time i will pay someone to install the convertible top i did not have 3 hands, thank you
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Old Jan 13, 2015 | 08:59 PM
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I lowered the coolant temp on/off fan switch using a Corvette Central part...

http://www.parts123.com/corvettecent...50f&ukey=17060
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Old Jan 13, 2015 | 09:27 PM
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Originally Posted by fpnmf
I lowered the coolant temp on/off fan switch using a Corvette Central part...

http://www.parts123.com/corvettecent...50f&ukey=17060
thank you i was not aware of this where does the sensor go,,,thanks
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Old Jan 14, 2015 | 12:35 AM
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Originally Posted by fpnmf
I lowered the coolant temp on/off fan switch using a Corvette Central part...

http://www.parts123.com/corvettecent...50f&ukey=17060
That switch appears to be for the auxiliary fan, not the main fan. The main fan is controlled by the ECM using the coolant temperature sensor on the front of the intake manifold.
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Old Jan 14, 2015 | 06:43 AM
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Originally Posted by Cliff Harris
That switch appears to be for the auxiliary fan, not the main fan. The main fan is controlled by the ECM using the coolant temperature sensor on the front of the intake manifold.
My mistake... I used this one...
http://www.parts123.com/corvettecent...050f&ukey=9633
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Old Jan 15, 2015 | 02:24 AM
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Originally Posted by fpnmf
That switch is for the auxiliary fan in front of the condenser. You can tell by the connector, which is the same as the knock sensor connector.
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Old Jan 15, 2015 | 08:09 AM
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Originally Posted by Cliff Harris
That switch is for the auxiliary fan in front of the condenser. You can tell by the connector, which is the same as the knock sensor connector.
On my 84 it goes in the head between the plugs .. right side on the 84 and left side on the later years ..to 89..also used in the aux fan.. Interesting reading about the many cooling changes in the first few years..

From the search tool here..
https://www.corvetteforum.com/forums...rchid=44943196

From Corvette Central ..We offer electric cooling fan switches in four different temperature ranges. The switches will turn on the main fan, auxiliary fan or both at a lower temperature.
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Old Jan 16, 2015 | 10:48 PM
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Originally Posted by fpnmf
On my 84 it goes in the head between the plugs .. right side on the 84 and left side on the later years ..to 89..also used in the aux fan.. Interesting reading about the many cooling changes in the first few years..

From the search tool here..
https://www.corvetteforum.com/forums...rchid=44943196

From Corvette Central ..We offer electric cooling fan switches in four different temperature ranges. The switches will turn on the main fan, auxiliary fan or both at a lower temperature.
thank you guys very much,,,Chaz
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