Generation III External Engine LS1 | LS6 | Bolt-Ons | Intakes | Exhaust | Ignition | Accessories
Sponsored by:
Sponsored by:

Rad fluid change question.

Thread Tools
 
Search this Thread
 
Old Jul 2, 2007 | 12:45 AM
  #1  
Canuck's Avatar
Thread Starter
Staging Lane
 
Joined: May 2005
Posts: 92
Likes: 0
From: windsor, ontario
Default Rad fluid change question.

I just emptied my rad and reservoir. There was thick green/gray "goo" in the reservoir (mostly) and rad (less) in the antifreeze. What is this? It reminds me of the great old horror film, The Blob - I'm serious. I hope it's not oil but just some of that rad stop leak stuff. Also, is there a way to drain the block? Thank you.
Reply
Old Jul 2, 2007 | 08:33 AM
  #2  
HavATampa's Avatar
TECH Addict
iTrader: (49)
 
Joined: Aug 2003
Posts: 2,128
Likes: 1
From: Louisiana
Default

Yuck. How long has it been since you did a flush? It could be engine oil, hopefully not. Have you noticed loss of engine oil (more than normal) or a similiar goo under the oil filler cap? You can drain the block, but it's a pain getting to the block plugs. There is 17mm Allen plug on the front left behind the alternator and a T50 torx plug on the rear of the engine over the starter. 02 Pewter LS1 had a thread with pics of these plugs, but the pics are missing now. I'll see if I can find them if you want.
Reply
Old Jul 2, 2007 | 08:03 PM
  #3  
Canuck's Avatar
Thread Starter
Staging Lane
 
Joined: May 2005
Posts: 92
Likes: 0
From: windsor, ontario
Default

I don't think I was using too much oil. My car has 70k miles on it and this is the first time I am flushing it. It's really weird. It's really thick and slimy (not kidding). If you could provide me with those pics I would be greatful.
Reply
Old Jul 2, 2007 | 08:08 PM
  #4  
Starion's Avatar
Launching!
15 Year Member
iTrader: (5)
 
Joined: Apr 2007
Posts: 281
Likes: 2
From: NOVA
Default

I've heard of the "sludge" effect by mixing the old green antifreeze with dexcool. It's possible that's what happened when somebody topped off the coolant with your car. Are you using dexcool or green? I've never seen any "green" colored anything in my dexcool system.
Reply
Old Jul 2, 2007 | 08:16 PM
  #5  
Soul TKR's Avatar
TECH Junkie
iTrader: (4)
 
Joined: Jun 2004
Posts: 3,543
Likes: 2
From: San Diego, CA
Default

yea.... if this is the first time flushing... there's two things going on... 70k miles is getting to the failing point of the coolant. And it sounds like at one point or another the coolants probably were mixed which is BAD because (especially with the Dex-Cool) it co-agulates... After you flush and drain it all out completely, put in fresh coolant, i would think you should be just fine... but i would check it regularly and keep an eye on your temp guage...
Reply
Old Jul 2, 2007 | 08:41 PM
  #6  
HavATampa's Avatar
TECH Addict
iTrader: (49)
 
Joined: Aug 2003
Posts: 2,128
Likes: 1
From: Louisiana
Default

Here's the pics you requested. These are no fun to remove with headers on.

1st pic is Drivers side, 17mm Allen plug:

2nd pic is Passenger side, T50 torx plug:

Last edited by HavATampa; May 31, 2011 at 10:14 PM.
Reply




All times are GMT -5. The time now is 08:50 PM.

story-0
10 Reasons Daily Driving a Swap Project SUCKS! (& 1 Reason to Do It Anyway)

Slideshow: 10 reasons daily-driving a swap project might not be for you. Or is it?

By Michael S. Palmer | 2026-06-17 09:39:05


VIEW MORE
story-1
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Don't get dad new socks or a grill brush this year.

By Brett Foote | 2026-06-09 14:55:56


VIEW MORE
story-2
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-06-18 10:26:23


VIEW MORE
story-3
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-4
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-5
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-6
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-7
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-8
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-9
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE