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

Temp gauge problem

Thread Tools
 
Search this Thread
 
Old May 13, 2009 | 03:23 PM
  #1  
ocstanley's Avatar
ocstanley
Thread Starter
Intermediate
10 Year Member
 
Joined: Apr 2005
Posts: 42
Likes: 0
Default Temp gauge problem

I have a '72 350 and recently noticed that the temperature gauge doesn't read higher than 120 degrees. I replaced the sending unit and continue to get the same problem. Next, I grabbed my volt/ohm meter and checked the gauge with a 5k ohm potentiometer. I discovered that the gauge worked properly for simulated temps between 210 - 250 degrees, but continued to stay in the area of 120 degrees for simulated temps between 100 - 210. I have cleaned the gauge's contacts -- the problem remains. Is this a common problem with older gauges? Do I need a new gauge or is this something that I can fix by myself? Do I need to go to a restoration facility? Please help.
Reply
Old May 13, 2009 | 04:44 PM
  #2  
...Roger...'s Avatar
...Roger...
Race Director
 
Joined: May 2006
Posts: 16,528
Likes: 53
From: Dayton, Ohio
Default

Is the resistor on the back of the gauge good and reading around 90 ohms?
Reply
Old May 13, 2009 | 09:57 PM
  #3  
ocstanley's Avatar
ocstanley
Thread Starter
Intermediate
10 Year Member
 
Joined: Apr 2005
Posts: 42
Likes: 0
Default Looking for resistor

Not sure. On the back of the gauge is a small wire-wrapped, rectangular strip. Is that the resistor? Thanks in advance for any help. This thing really has me frustrated.
Reply

Get notified of new replies

To Temp gauge problem





All times are GMT -4. The time now is 03:21 PM.

story-0
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
story-1
2027 Corvette vs The World: Every Model vs Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-20 17:58:41


VIEW MORE
story-2
10 Most Common Corvette Problems of the Last 20 Years!

Slideshow: 10 major Corvette problems from the last 20 years.

By Joe Kucinski | 2026-04-14 16:37:05


VIEW MORE
story-3
5 MOST and 5 LEAST Popular Corvette Model Years in History!

Slideshow: 5 most and least popular Corvette model years.

By Joe Kucinski | 2026-04-08 13:25:01


VIEW MORE
story-4
2027 Corvette Buyer's Guide: Everything You Need to Know!

Slideshow: 2027 Corvette buyer's guide

By Joe Kucinski | 2026-04-17 16:41:08


VIEW MORE
story-5
10 Things C8 Corvette Owners Hate (But Won't Tell You)

Slideshow: 10 things C8 Corvette owners hate, but won't tell you.

By Joe Kucinski | 2026-04-01 18:36:07


VIEW MORE
story-6
10 Best Corvettes Coming to Barrett-Jackson Palm Beach 2026!

Slideshow: Should you add one of these incredible Corvettes to your garage?

By Brett Foote | 2026-04-01 18:14:05


VIEW MORE
story-7
Every Corvette Grand Sport Explained! (C2, C4, C6, C7, & C8)

Slideshow: Every Corvette Grand Sport explained

By Joe Kucinski | 2026-03-26 07:13:44


VIEW MORE
story-8
Grand Sport & Grand Sport X Launch Alongside All-New 535hp LS6 V8!

Slideshow: Breaking down the 2027 Grand Sport, Grand Sport X, Stingray, and LS6 V8.

By Michael S. Palmer | 2026-03-26 13:48:45


VIEW MORE
story-9
5 Reasons Bad Drivers Crash & 5 Ways to Avoid a Costly Mistake!

Slideshow: 5 reasons bad drivers crash sports cars & 5 ways to avoid a costly shame!

By Joe Kucinski | 2026-03-25 16:32:55


VIEW MORE