C6 Tech/Performance LS2, LS3, LS7, LS9 Corvette Technical Info, Internal Engine, External Engine, Tech Topics, Basic Tech, Maintenance, How to Remove & Replace
Sponsored by:
Sponsored by:

How do i flush my radiator

Thread Tools
 
Search this Thread
 
Old Oct 9, 2011 | 02:09 PM
  #1  
PRicanC6Xpress's Avatar
PRicanC6Xpress
Thread Starter
Pro
 
Joined: Sep 2011
Posts: 526
Likes: 1
From: From: Brooklyn Kiddo, Live in Wantagh, Long Island NY....... New York
Default How do i flush my radiator

I'm definatetly not a mechanic, as I read through these threads most of you guys on this forum. Know as much as a mechanic or most of you are mechanics. I'm new to this sport of having a corvette and would like to flush my radiator. Actually my 05' c6 is leaking anti freeze, at a slow rate. I want to take out the radiator inspect it and have it flushed can any one of you guys help me out............. Thanx

Last edited by PRicanC6Xpress; Oct 9, 2011 at 02:11 PM. Reason: run on sentences
Reply
Old Oct 9, 2011 | 04:41 PM
  #2  
Paratrooper307's Avatar
Paratrooper307
Racer
10 Year Member
 
Joined: Aug 2008
Posts: 497
Likes: 21
From: Garner NC
Default

Before removing the radiator, see if you can isolate the source of the leak. In many cases, its a bad hose or a loose clamp. Sometimes a water pump will leak also. If there are no visible leaks, but you are using coolant, you may be dealing with a bad heater core or head gasket.

As for flushing the system, there are several ways to it. If the fluid just is due to be changed and isn't all gunked up, you can just drain the fluid out of the radiator (drain **** is on the passenger side) and replace it with new, running the engine and heater and adding fluid as necessary as air pockets are eliminated. If you want to be really thorough, you can also drain the coolant out of the block and heater core.

Power flushes as advertised by some shops are generally not necessary unless your system is really dirty, and in many cases you can flush out the sediment yourself with a garden hose.

If you do find that you have to remove the radiator, it is a fairly simple job after removing the intake, upper and lower mounts and the fan assembly.
Reply
Old Oct 9, 2011 | 10:07 PM
  #3  
Ragtop 99's Avatar
Ragtop 99
Safety Car
15 Year Member
Liked
Loved
Community Favorite
 
Joined: Nov 2007
Posts: 4,537
Likes: 1,403
From: Bethesda MD
Default

a couple helpful threads:
http://forums.corvetteforum.com/c6-t...t-on-a-c6.html
http://forums.corvetteforum.com/c6-t...-diy-page.html
Reply
Old Oct 9, 2011 | 10:35 PM
  #4  
Joe_G's Avatar
Joe_G
Tech Contributor
20 Year Member
Photogenic
Liked
Loved
 
Joined: Jul 2002
Posts: 14,950
Likes: 264
From: St. Louis, MO
St. Jude Donor '08
Default

Before you drain your antifreeze call around and see where you can take it for disposal...none of the parts stores in my area that take used oil would take it. I had a heck of a time getting rid of it. Finally my buddy who is a mechanic took it to work and disposed of it in their recycling system.

Oil is easy to get rid of, antifreeze wasn't for me. I think next time I'll just have it done at the oil change place (not the one that wouldn't take my antifreeze!).
Reply
Old Oct 10, 2011 | 07:01 AM
  #5  
turbod's Avatar
turbod
Pro
10 Year Member
 
Joined: Jul 2010
Posts: 736
Likes: 7
From: Chesapeake,VA
Default

Originally Posted by Joe_G
Before you drain your antifreeze call around and see where you can take it for disposal...none of the parts stores in my area that take used oil would take it. I had a heck of a time getting rid of it. Finally my buddy who is a mechanic took it to work and disposed of it in their recycling system.

Oil is easy to get rid of, antifreeze wasn't for me. I think next time I'll just have it done at the oil change place (not the one that wouldn't take my antifreeze!).
Used to do my own flushes but it's difficult finding a recycle facility that will take it.
Reply
Old Oct 10, 2011 | 10:27 PM
  #6  
PRicanC6Xpress's Avatar
PRicanC6Xpress
Thread Starter
Pro
 
Joined: Sep 2011
Posts: 526
Likes: 1
From: From: Brooklyn Kiddo, Live in Wantagh, Long Island NY....... New York
Default thnx

I took the car to the corvette shop in Montgomery Ny.... Paul the owner is a decent guy......... Hoping it's not a huge problem. I checked my garage floor last night and there was additional anti-freeze on my floor........... Thanks guys wish me luck.
Reply
Old Oct 11, 2011 | 07:54 AM
  #7  
davekp78's Avatar
davekp78
Melting Slicks
15 Year Member
 
Joined: Sep 2005
Posts: 2,670
Likes: 134
From: merritt island fl
C1 of Year Finalist (stock) 2019
2016 C1 of the Year Finalist
2015 C2 of the Year Finalist
Default

Flushing the radiator probably will not address the LEAK. If there is a puddle on the floor, the source should be easy to find. Fix that.
Reply
Old Oct 13, 2011 | 10:34 PM
  #8  
PRicanC6Xpress's Avatar
PRicanC6Xpress
Thread Starter
Pro
 
Joined: Sep 2011
Posts: 526
Likes: 1
From: From: Brooklyn Kiddo, Live in Wantagh, Long Island NY....... New York
Default

Dave you think it can be fixed by a radiator shop..... It's actually for reasons I don't know not leaking now......
Reply
Corvette Stories

The Best of Corvette for Corvette Enthusiasts

story-0

8 Most "Only Corvette Owners Understand" Quirks and Problems

 Pouria Savadkouei
story-1

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

 Joe Kucinski
story-2

How Much Horsepower Every Corvette Engine "LOST" in 1972

 Joe Kucinski
story-3

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

 Michael S. Palmer
story-4

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

 Joe Kucinski
story-5

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

 Joe Kucinski
story-6

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

 Verdad Gallardo
story-7

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

 Joe Kucinski
story-8

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

 Verdad Gallardo
story-9

Top 10 Corvettes Coming to Mecum Indy 2026!

 Brett Foote
Old Oct 14, 2011 | 08:24 AM
  #9  
davekp78's Avatar
davekp78
Melting Slicks
15 Year Member
 
Joined: Sep 2005
Posts: 2,670
Likes: 134
From: merritt island fl
C1 of Year Finalist (stock) 2019
2016 C1 of the Year Finalist
2015 C2 of the Year Finalist
Default

Originally Posted by BlackCorvette66
Dave you think it can be fixed by a radiator shop..... It's actually for reasons I don't know not leaking now......
I don't understand what you mean. What I'm saying is it won't be fixed by flushing. You need to find the source of the leak.
Reply

Get notified of new replies

To How do i flush my radiator





All times are GMT -4. The time now is 02:42 PM.

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