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 Jan 30, 2023 | 03:28 PM
  #1  
split63's Avatar
split63
Thread Starter
Pro
20 Year Member
Liked
Loved
Community Favorite
 
Joined: Mar 2003
Posts: 629
Likes: 20
From: Texas
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
Reply
Old Jan 30, 2023 | 04:31 PM
  #2  
bazza77's Avatar
bazza77
Melting Slicks
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Jul 2010
Posts: 3,176
Likes: 633
From: perth western australia
Default

My 1977 vette used 0-90 ohms. Pretty sure 1970 will be the same
Reply
Old Jan 30, 2023 | 05:20 PM
  #3  
Peterbuilt's Avatar
Peterbuilt
Le Mans Master
15 Year Member
 
Joined: Aug 2006
Posts: 7,427
Likes: 1,560
From: mount holly NC
2025 c3 ('74-'82) of the Year Finalist - Unmodified
2019 C3 of Year Finalist (appearance mods)
Default Does this help?


Reply
Old Jan 30, 2023 | 11:22 PM
  #4  
Avispa's Avatar
Avispa
Safety Car
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Mar 2009
Posts: 4,191
Likes: 951
From: Corpus Christi, TX
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.
Reply
Old Jan 31, 2023 | 08:44 AM
  #5  
Rescue Rogers's Avatar
Rescue Rogers
Is my vette stock?? HAHA
Supporting Lifetime Gold
Veteran: Navy
10 Year Member
Community Builder
Loved
 
Joined: Oct 2015
Posts: 20,222
Likes: 9,359
From: Im not allowed to tell you
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
Reply

Get notified of new replies

To Early Temperature gauge wiring and sensor





All times are GMT -4. The time now is 11:34 AM.

story-0
10 Ugly Corvettes That We Still Kinda Love

Slideshow: 10 ugly Corvettes that we still kinda love.

By Joe Kucinski | 2026-06-03 10:34:17


VIEW MORE
story-1
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer

A lot of money has changed hands at the online auction house over the years.

By Brett Foote | 2026-06-03 10:21:50


VIEW MORE
story-2
10 Things Every Corvette Owner Needs (2026 Edition)

Slideshow: 10 great gifts Corvette enthusiasts actually want for Father's Day!

By Michael S. Palmer | 2026-06-03 15:43:40


VIEW MORE
story-3
8 Most "Only Corvette Owners Understand" Quirks and Problems

Slideshow: These are the quirks, annoyances, and oddly lovable problems that every Corvette owner eventually learns to live with.

By Pouria Savadkouei | 2026-05-28 09:31:39


VIEW MORE
story-4
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

Slideshow: 10 reasons why the C6 Z06 is still a performance benchmark after 20 years.

By Joe Kucinski | 2026-05-27 17:20:09


VIEW MORE
story-5
How Much Horsepower Every Corvette Engine "LOST" in 1972

Slideshow: How much horsepower every Corvette engine lost in 1972.

By Joe Kucinski | 2026-05-27 16:54:53


VIEW MORE
story-6
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-7
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-8
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-9
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