C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Low coolant?

Thread Tools
 
Search this Thread
 
Old Jan 24, 2003 | 03:14 PM
  #1  
Skruball73's Avatar
Skruball73
Thread Starter
Burning Brakes
20 Year Member
Conversation Starter
All Eyes On Me
 
Joined: Jul 2001
Posts: 1,051
Likes: 0
From: Inside every color vette there is a blue one trying to come out!
Default Low coolant?

On my 86, the low coolant light has been lighting up on the dash, but when I checked the radiator level, the water/antifreeze mixture was almost at the to of the lip....so I know I have enough coolant. What's up with that? Could it be any thing else? Could it be that the thermostat is sticking becuase the light will go off and come back on every once in a while during drive time. :confused:
Reply
Old Jan 24, 2003 | 03:18 PM
  #2  
VetBoy89's Avatar
VetBoy89
Burning Brakes
 
Joined: Apr 2002
Posts: 755
Likes: 0
From: Patterson CA
Default Re: Low coolant? (Skruball73)

Check your overflow tank to be sure it is at the proper level. Also you could have an air bubble in the system. :cheers:
Reply
Old Jan 24, 2003 | 04:11 PM
  #3  
John Row's Avatar
John Row
Melting Slicks
20 Year Member
Liked
Loved
 
Joined: May 2001
Posts: 2,143
Likes: 7
From: San Diego CA
Default Re: Low coolant? (Skruball73)

Sensor in the bottom of the expansion tank may be going bad. You could try to clean it, but to get a new one you have to buy the whole tank (~$45). If you pull the tank, you'll see the sensor screwed into the low point in the tank.
Reply
Old Jan 25, 2003 | 07:32 AM
  #4  
Ray Quayle's Avatar
Ray Quayle
- 1986 Original Owner -
Supporting Lifetime Gold
Veteran: Navy
25 Year Member
Liked
Community Favorite
 
Joined: Apr 1999
Posts: 3,193
Likes: 139
From: North Yorkshire, England
Cruise-In I Veteran
Cruise-In II Veteran
Cruise-In III Veteran
Cruise-In IV Veteran
Cruise-In VII Veteran
Default Re: Low coolant? (John Row)

On the '86 the sensor is not in the expansion tank. It could be air as stated by VetBoy89. Also look at TSB 88-43 on my site http://www.corvetteforum.net/c4/rayq...tsbs/88-43.htm there's some info that may help.
Sensor in the bottom of the expansion tank may be going bad. You could try to clean it, but to get a new one you have to buy the whole tank (~$45). If you pull the tank, you'll see the sensor screwed into the low point in the tank.
Reply

Get notified of new replies

To Low coolant?





All times are GMT -4. The time now is 04:54 PM.

story-0
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-1
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-2
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-3
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-4
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-5
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-6
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-7
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-8
2027 Corvette vs The World: Every C8 vs Its Closest Competitor

Slideshow: 2027 Corvette lineup vs the world.

By Joe Kucinski | 2026-04-24 16:12:42


VIEW MORE
story-9
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