C4 General Discussion General C4 Corvette Discussion not covered in Tech

Overheating Issue on C4

Thread Tools
 
Search this Thread
 
Old Dec 24, 2007 | 09:30 PM
  #1  
IceDazzlr's Avatar
IceDazzlr
Thread Starter
Intermediate
 
Joined: Dec 2007
Posts: 37
Likes: 0
From: Valinda California
Default Overheating Issue on C4

I recently bought my first vette and I love it. However, my 1994 Vette is having some overheating issue when I'm sitting in traffic. Temperatures will reach 225 to 230 and goes back down to 190 to 200 when I'm moving again. I noticed that the secondary fan is not operating and I'm not sure if it's a bad fan or a bad sensor. The fuse looks good and the wiring seems to e connected. Has anyone else experienced this problem or have a recommendation to fix the problem? Email me please. IceDazzlr@yahoo.com
Reply
Old Dec 24, 2007 | 09:51 PM
  #2  
arizonaames269's Avatar
arizonaames269
Racer
 
Joined: Nov 2007
Posts: 300
Likes: 1
From: Prescott Michigan
Default

That is normal. Mine does the same. The fan kicks in at 225 and drops to 200 and then again and again at idle. I am running the stock 190 thermostat. There is a way to lower it. Do a search on this site or someone else will come along shortly with more knowledge....jim
Reply
Old Dec 24, 2007 | 10:06 PM
  #3  
IceDazzlr's Avatar
IceDazzlr
Thread Starter
Intermediate
 
Joined: Dec 2007
Posts: 37
Likes: 0
From: Valinda California
Default Thank you

Originally Posted by arizonaames269
That is normal. Mine does the same. The fan kicks in at 225 and drops to 200 and then again and again at idle. I am running the stock 190 thermostat. There is a way to lower it. Do a search on this site or someone else will come along shortly with more knowledge....jim

Thank you so much! Makes me feel a little better that this is a normal thing. I did notice that when I turned my A/C on the other day the temperature didn't exceed more than 210. People say that when the A/C is on that both fans come on. That would explain why I saw lowere temps the other dAY.
Reply
Old Dec 24, 2007 | 10:07 PM
  #4  
aminnich's Avatar
aminnich
Le Mans Master
 
Joined: Jan 2006
Posts: 6,564
Likes: 6
From: Woodstock Georgia
Default

Normal is main fan on at 227*F and the auxillary fan on at 237*F. That is how GM designed it to operate.
Reply
Old Dec 25, 2007 | 01:58 AM
  #5  
85 500 horse's Avatar
85 500 horse
Melting Slicks
15 Year Member
 
Joined: Dec 2004
Posts: 2,954
Likes: 2
From: Obama=death for America
Default

Why did you post this exact question again? You should delete one of them.
Reply
Old Dec 25, 2007 | 10:07 AM
  #6  
Aquaman92's Avatar
Aquaman92
Le Mans Master
20 Year Member
 
Joined: Aug 2004
Posts: 6,479
Likes: 0
From: Ponte Vedra
Default

Normal temps
Reply
Old Dec 25, 2007 | 12:41 PM
  #7  
runner140*'s Avatar
runner140*
Le Mans Master
20 Year Member
Veteran: Army
Liked
Community Favorite
 
Joined: Mar 2004
Posts: 8,700
Likes: 298
From: Ft. Lauderdale Fl
Default

Those are normal temps for a LT1. There is many things to do to make the LT1's run cooler but yours are normal.
Reply
Old Dec 26, 2007 | 05:08 PM
  #8  
89 Bob L's Avatar
89 Bob L
Burning Brakes
10 Year Member
 
Joined: Dec 2000
Posts: 1,161
Likes: 0
From: Orangeburg, NY
Default

Normal is main fan on at 227*F and the auxillary fan on at 237*F. That is how GM designed it to operate.



You can also check the air intakefor any debris that may have been sucked in (leaves, paper cups, etc.) and is blocking the radiator. A check between the radiator and a/c may also help.
Reply

Get notified of new replies

To Overheating Issue on C4

Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years

 Joe Kucinski
story-1

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-2

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

 Michael S. Palmer
story-3

Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!

 Joe Kucinski
story-4

150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter

 Joe Kucinski
story-5

8 Coolest Corvette Pace Cars (and Replicas) of All Time

 Verdad Gallardo
story-6

Top 10 Corvette Engines RANKED by Peak Torque (70+ Years of Muscle!)

 Joe Kucinski
story-7

Corvette ZR1X Will Be Pacing the Indy 500, And Could Probably Race, Too!

 Verdad Gallardo
story-8

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
story-9

Top 10 C9 Corvette MUST-HAVES to Fix These C8 Generation Flaws!

 Michael S. Palmer




All times are GMT -4. The time now is 12:30 PM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
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-9
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