C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
Sponsored by:
Sponsored by:

Early Temperature gauge wiring and sensor

Thread Tools
 
Search this Thread
 
Old 01-30-2023, 03:28 PM
  #1  
split63
Pro
Thread Starter
 
split63's Avatar
 
Member Since: Mar 2003
Location: Texas
Posts: 537
Received 14 Likes on 9 Posts

Default Early Temperature gauge wiring and sensor

What are the connections for the 3 terminals shown.
My understanding is:
1. To Temp sensor on engine: variable resistor to GND
2. +12VDC
3. GND

Also, do you know what the resistance range is for the sensor?


1970 Temp gauge
Old 01-30-2023, 04:31 PM
  #2  
bazza77
Melting Slicks
 
bazza77's Avatar
 
Member Since: Jul 2010
Location: perth western australia
Posts: 3,100
Received 599 Likes on 533 Posts

Default

My 1977 vette used 0-90 ohms. Pretty sure 1970 will be the same
Old 01-30-2023, 05:20 PM
  #3  
Peterbuilt
Le Mans Master
 
Peterbuilt's Avatar
 
Member Since: Aug 2006
Location: mount holly NC
Posts: 6,995
Received 1,251 Likes on 969 Posts
C3 of Year Finalist (appearance mods) 2019

Default Does this help?


The following 2 users liked this post by Peterbuilt:
ctmccloskey (02-03-2023), split63 (01-30-2023)
Old 01-30-2023, 11:22 PM
  #4  
Avispa
Safety Car
 
Avispa's Avatar
 
Member Since: Mar 2009
Location: Oldsmar, FL
Posts: 4,064
Received 886 Likes on 635 Posts

Default

Originally Posted by bazza77
My 1977 vette used 0-90 ohms. Pretty sure 1970 will be the same
You sure you weren't thinking of the gas gage sender for 90 to 0 ohms? Not sure any GM temp gauge sensor has that resistance range.
Old 01-31-2023, 08:44 AM
  #5  
Rescue Rogers
Dementer sole survivor

Support Corvetteforum!
 
Rescue Rogers's Avatar
 
Member Since: Oct 2015
Location: YUPPY HELL Westford MASS
Posts: 16,484
Received 6,339 Likes on 3,940 Posts
2020 C3 of the Year Finalist - Modified
2020 Corvette of the Year Finalist (performance mods)
2019 C3 of Year Winner (performance mods)
2016 C3 of Year Finalist
Default

here you go......We miss Ernie Willcox http://repairs.willcoxcorvette.com/?...perature+gauge
the resistor was 90 ohms...the white wrapped thin piece under the block
The following users liked this post:
carriljc (02-01-2023)

Get notified of new replies

To Early Temperature gauge wiring and sensor




Quick Reply: Early Temperature gauge wiring and sensor



All times are GMT -4. The time now is 10:54 AM.