LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Antifreeze problem's again

Thread Tools
 
Search this Thread
 
Old Jul 16, 2008 | 12:11 PM
  #1  
Kmaroman's Avatar
Thread Starter
TECH Enthusiast
iTrader: (1)
 
Joined: Mar 2008
Posts: 735
Likes: 0
From: Indiana
Default Antifreeze problem's again

Well about a month ago my car's light came on i filled it up up and now here i am agian. The overflow is empty again, the radiator itself look's kinda low. I've checked the oil it's good not milky no sign of anti freeze in it. It's possible it could be leaking into the cylinder's but i let it set since i came home which was at least 10hrs started it up no smoke, what else is there anybody, something i missed to check. one more thing my pcv hose i lost it how bad is it to just leave it of and let the hole stick out it hasn't shot any oil out of it
Reply
Old Jul 16, 2008 | 12:16 PM
  #2  
1badzee's Avatar
TECH Junkie
iTrader: (12)
 
Joined: Sep 2007
Posts: 3,011
Likes: 0
From: SFL
Default

Check the oil filler cap/tube or if you have a breather. Look for even tiny signs of milkiness. I had same problem. No oil in coolant, no coolant in oil, no smoke, etc.. But i was losing coolant al the time. Pulled the heads, headgaskets were fine, but headbolts didnt have sealant so it was leaking through the headbolts. Goodluck
Reply
Old Jul 16, 2008 | 12:26 PM
  #3  
Kmaroman's Avatar
Thread Starter
TECH Enthusiast
iTrader: (1)
 
Joined: Mar 2008
Posts: 735
Likes: 0
From: Indiana
Default

also my oil pressure is still good and my tempature hasn't overheated
Reply
Old Jul 16, 2008 | 12:29 PM
  #4  
1badzee's Avatar
TECH Junkie
iTrader: (12)
 
Joined: Sep 2007
Posts: 3,011
Likes: 0
From: SFL
Default

do you keep filling the coolant? if so, you're probably not letting it get low enough to ever overheat. you are having the same symptoms i am.. sorry to tell ya lol.. well look for any visible leaks with hoses, etc.
Reply
Old Jul 16, 2008 | 12:41 PM
  #5  
LT1-DAN's Avatar
TECH Enthusiast
 
Joined: Sep 2006
Posts: 708
Likes: 0
From: FLORIDA
Default

Did you pressurize the cooling system?
Reply
Old Jul 16, 2008 | 12:46 PM
  #6  
Kmaroman's Avatar
Thread Starter
TECH Enthusiast
iTrader: (1)
 
Joined: Mar 2008
Posts: 735
Likes: 0
From: Indiana
Default

How can i do that. I lost my first 350 to an internal leak. I hope to god this one won't go either. When this first happen about a month ago i took the overflow out to make sure it didn't have crack's and it had some really nasty blackish antifreeze. I cleaned it out and refilled it but the radiator itself was still you know good green antifreeze. service light came onlast night i'll go get the code for that later
Reply
Old Jul 16, 2008 | 12:57 PM
  #7  
Kmaroman's Avatar
Thread Starter
TECH Enthusiast
iTrader: (1)
 
Joined: Mar 2008
Posts: 735
Likes: 0
From: Indiana
Default

how can i pressurize the cooling system lt1 dan tell me
Reply
Old Jul 16, 2008 | 01:11 PM
  #8  
LT1-DAN's Avatar
TECH Enthusiast
 
Joined: Sep 2006
Posts: 708
Likes: 0
From: FLORIDA
Default

You can rent the tool at some auto parts stores, Advance, Autozone, ect. It fits on your radiator in place of the cap and you pump it up and see if it holds pressure, if it doesn't hold pressure you should see coolant leaking if you have a leak somewhere.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-1

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-2

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old Jul 16, 2008 | 01:16 PM
  #9  
Kmaroman's Avatar
Thread Starter
TECH Enthusiast
iTrader: (1)
 
Joined: Mar 2008
Posts: 735
Likes: 0
From: Indiana
Default

If it's leaking internally how would i know. I take you pump it to 18 since that's what the cap hold's wright. I had a guy at autozone say it might be the heater core what do you guy's think i can't smell any antifreeze
Reply
Old Jul 16, 2008 | 03:26 PM
  #10  
1badzee's Avatar
TECH Junkie
iTrader: (12)
 
Joined: Sep 2007
Posts: 3,011
Likes: 0
From: SFL
Default

Do you see any visible leaks? Get the system pressurized and see if it holds of not. Doesn't really matter because if it's a headbolt leak like mine, it will hold pressure fine, but only leaks when driven (when engine is hot and metal EXPANDS)
Reply




All times are GMT -5. The time now is 04:02 PM.

story-0
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-1
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-2
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-3
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-4
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
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE