C3 General General C3 Corvette Discussion not covered in Tech
Sponsored by:
Sponsored by:

Coolant Sending Unit

Thread Tools
 
Search this Thread
 
Old Aug 22, 2015 | 09:22 AM
  #1  
PBCloud's Avatar
PBCloud
Thread Starter
Racer
10 Year Member
 
Joined: Nov 2012
Posts: 367
Likes: 16
From: London
Default Coolant Sending Unit

454 1970

I know the coolant temperature sending unit is the one on the right bank of the engine (as you look from the front) what's the senor on the left bank called (I broke it and need to order a new one).
Reply
Old Aug 22, 2015 | 12:58 PM
  #2  
C3 4ME's Avatar
C3 4ME
Le Mans Master
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Oct 2005
Posts: 6,247
Likes: 471
From: Glen Allen, VA
Default

On a small block its the oil pressure sender. Not sure if that helps since yours is a big block.
Reply
Old Aug 22, 2015 | 03:45 PM
  #3  
toobroketoretire's Avatar
toobroketoretire
Melting Slicks
 
Joined: Apr 2009
Posts: 2,632
Likes: 112
From: Great Plains Iowa
Default

Originally Posted by PBCloud
454 1970

I know the coolant temperature sending unit is the one on the right bank of the engine (as you look from the front) what's the senor on the left bank called (I broke it and need to order a new one).

There isn't any sender or sensor on the passenger side unless one was used to supply power to an aftermarket electric fan or something else that needed a power source dependent on coolant temperature.

Please give us a picture...............
Reply
Old Aug 22, 2015 | 06:01 PM
  #4  
DonnieP73's Avatar
DonnieP73
Burning Brakes
10 Year Member
Liked
Top Answer: 1
Top Answer: 3
 
Joined: Mar 2013
Posts: 1,018
Likes: 581
From: West Monroe Louisiana
2023 C3 of the Year Finalist - Unmodified
Default

Originally Posted by PBCloud
454 1970

I know the coolant temperature sending unit is the one on the right bank of the engine (as you look from the front) what's the senor on the left bank called (I broke it and need to order a new one).
This sending unit has two blades and is on right bank, passenger side,
the temp sending unit has one blade on left bank driver side.

That is the transmission controlled spark thermal switch.

http://www.zip-corvette.com/catalog/...category/7535/

Donnie
Reply
Old Aug 22, 2015 | 06:27 PM
  #5  
DUB's Avatar
DUB
Race Director
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2009
Posts: 19,294
Likes: 2,753
From: Charlotte NC
Default

Originally Posted by PBCloud
454 1970

I know the coolant temperature sending unit is the one on the right bank of the engine (as you look from the front) what's the senor on the left bank called (I broke it and need to order a new one).
Just so you can keep with the way it is called by industry terms. You do not stand in front of the car...but rather sit in the car. So...the drivers side is the left side...the passenger side is the right. Hopefully you take this comment as helpful and not being a smart@ss.

DonnieP73 is correct 100% on this.

Despite contrary beliefs that there is NO switch....Obviously...there IS a switch that goes in the right cylinder head...imagine that.

DUB
Reply
Old Aug 23, 2015 | 09:23 AM
  #6  
PBCloud's Avatar
PBCloud
Thread Starter
Racer
10 Year Member
 
Joined: Nov 2012
Posts: 367
Likes: 16
From: London
Default

Thanks guys, and for the pointer on getting my left and right bank sorted, much appreciated.

Its therefore the one on the right hand side, the one on the left has a single round spigot connector, the one on the right has two blades (this is the one I broke). I was not sure if both were temperature senders or they did different jobs. I saw the comment above and followed the link and its the thermal switch and available from Zip.

Sorry to waste every ones time on what seems a trivial point, but you have all been very helpful. I just wanted to save spending money on the wrong component as I order from the states to get it shipped to the UK.

Last edited by PBCloud; Aug 23, 2015 at 09:26 AM.
Reply
Old Aug 23, 2015 | 05:57 PM
  #7  
DUB's Avatar
DUB
Race Director
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Apr 2009
Posts: 19,294
Likes: 2,753
From: Charlotte NC
Default

The two switches ( one in each cylinder head) do different 'things'...and are not the same...obviously. The link to the switch with the two terminals is what you need.

DUB
Reply

Get notified of new replies

To Coolant Sending Unit





All times are GMT -4. The time now is 11:50 AM.

story-0
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!

Slideshow: How to Protect A Convertible Top: 10 DOs & DON'Ts

By Michael S. Palmer | 2026-04-03 00:00:00


VIEW MORE
story-1
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

Slideshow: The 10 most explosive Corvettes ever built based on power-to-weight ratio.

By Joe Kucinski | 2026-05-20 07:23:03


VIEW MORE
story-2
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

Slideshow: From C1 to C8 we compare every Corvette generation by the numbers.

By Joe Kucinski | 2026-05-12 16:54:12


VIEW MORE
story-3
8 Coolest Corvette Pace Cars (and Replicas) of All Time

Slideshow: Some Corvette pace cars became collectible legends, while others perfectly captured the look and attitude of their era.

By Verdad Gallardo | 2026-05-11 09:50:51


VIEW MORE
story-4
Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

Slideshow: Ranking the top 10 Corvette engines by torque output.

By Joe Kucinski | 2026-05-05 11:58:09


VIEW MORE
story-5
Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

Slideshow: A Corvette pace car nearly matching IndyCar speeds sounds exaggerated, until you look at the numbers.

By Verdad Gallardo | 2026-05-04 20:03:36


VIEW MORE
story-6
Top 10 Corvettes Coming to Mecum Indy 2026!

Among a rather large group of them.

By Brett Foote | 2026-05-04 13:56:44


VIEW MORE
story-7
Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

Slideshow: the top 10 things Corvette owners want in the C9 Corvette

By Michael S. Palmer | 2026-04-30 12:41:15


VIEW MORE
story-8
10 Revolutionary 'Corvette Firsts' Most People Don't Know

Slideshow: 10 Important Corvette 'firsts' that every fan should know.

By Joe Kucinski | 2026-04-29 17:02:16


VIEW MORE
story-9
5 Reasons to Upgrade to an LS6-Powered Corvette; 5 Reasons to Stay LT2

Slideshow: Should you buy a 2020-2026 Corvette or wait for 2027?

By Michael S. Palmer | 2026-04-22 10:08:58


VIEW MORE