1996 S10 4.3L Cooling System Help! - S-10 Forum
 
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post #1 of 13 Old 08-16-2010, 07:40 PM Thread Starter
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1996 S10 4.3L Cooling System Help!

I realize I posted this in the 4.3L section, but I'm hoping it will get some good traffic and advice in here. i need the truck for tomorrow and was going through roughly 1+ gallons a week.

Had a coolant leak from the front of the truck, saw a couple of cracks in the radiator so I went ahead and replaced the radiator and the upper and lower hoses. Now I have a leak from somewhere in the back of the block, it runs down the transmission. It's not a drip but a steady stream, someone help me quick. Any help PLEASE!


Stephen

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post #2 of 13 Old 08-16-2010, 07:46 PM
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Re: 1996 S10 4.3L Cooling System Help!

Well, it sounds like an intake gasket to me.

Jason

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post #3 of 13 Old 08-16-2010, 07:47 PM
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Re: 1996 S10 4.3L Cooling System Help!

intake gasket?

i believe coolant in the back is a symptom of that but I could be (and most likely) wrong

edit: damn you jason haha

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post #4 of 13 Old 08-16-2010, 07:54 PM Thread Starter
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Re: 1996 S10 4.3L Cooling System Help!

Any clue on how much that runs?

Stephen

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post #5 of 13 Old 08-16-2010, 07:58 PM
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Re: 1996 S10 4.3L Cooling System Help!

I had the same problem a few months ago and it was the head gasket on mine. When i took the head off there wasn't nything left of my old gasket.
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post #6 of 13 Old 08-16-2010, 07:58 PM
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Re: 1996 S10 4.3L Cooling System Help!

not off the top of my head

also check the heater core lines, I thought i needed a new intake gasket but I actually had a cut in the line going into the heater core and it blow out coolant under load.

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post #7 of 13 Old 08-16-2010, 08:03 PM Thread Starter
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Re: 1996 S10 4.3L Cooling System Help!

It leaks with just the truck running, no extra load needed, and the heater core was just replaced 2 winters ago, with new lines and everything so not that.

Stephen

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post #8 of 13 Old 08-16-2010, 08:52 PM
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Re: 1996 S10 4.3L Cooling System Help!

check your oil to see if theres coolant in your oilpan

if there is it's 99% likely your intake gasket, which is a $30 dollar fix (if you do it yourself)
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post #9 of 13 Old 08-16-2010, 08:56 PM Thread Starter
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Re: 1996 S10 4.3L Cooling System Help!

No coolant in the oil, just changed that last weekend (August 7) and it was clean as a whistle.

Stephen

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post #10 of 13 Old 08-16-2010, 10:17 PM
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Re: 1996 S10 4.3L Cooling System Help!

Its impossible to diagnose over the internet. You need a pressure tester and a good set of eyes. The replies give you a few places to start looking though.

Chris
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post #11 of 13 Old 08-16-2010, 10:20 PM
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Re: 1996 S10 4.3L Cooling System Help!

i would assume its most likely intake gaskets...ive done 3 now, my bros s10, mine, and my friends...and i guess my moms yukon if you wanna count a v8 vortec too...just take a day off and spend it replacing the gasket...

Brian

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post #12 of 13 Old 08-17-2010, 10:26 AM
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Re: 1996 S10 4.3L Cooling System Help!

Quote:
Originally Posted by wildman ss View Post
not off the top of my head

also check the heater core lines, I thought i needed a new intake gasket but I actually had a cut in the line going into the heater core and it blow out coolant under load.
I didnt even think of heater lines/core, but all that is right there also.

Jason

Sold on 12/7/10 97 SS - 5/6 drop, 225/60/15's on swirlies, Shaved TailGate, Flowmaster, Kicker 10" Sold on 12/7/10

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post #13 of 13 Old 08-18-2010, 08:53 AM
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Re: 1996 S10 4.3L Cooling System Help!

autozone intake gasket- $24.99
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