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Guest Message by DevFuse
 

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1993 Chevy 4.3 Vortec with coolant/water in oil

Chevrolet Vortec Blazer

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2 replies to this topic

#1 BoostedBoxer421

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Posted 24 July 2014 - 03:10 AM

Hey everyone!

Just acquired a 93 Blazer with a 4.3l V6 and its been sitting for a month or two with coolant/water in the oil from either head gasket, cracked head, or intake gasket. But what I want to try and find out is what the best way to flush the oil and get as much water, and maybe rust, out of the engine as I can

#2 spazomatic

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Posted 24 July 2014 - 05:44 AM

I would just drain it out, leave the plug out while you do your repairs, then refill it and not worry about it.

Its most likely an intake gasket, but you should consider doing the head gaskets while you have it torn down that far. 4.3 heads arent prone to cracking, but do warp sometimes if theyve been real hot, so check for that too.

#3 czny

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Posted 24 July 2014 - 08:16 AM

Here's some info about int manifold leaks:

http://troubleshootm...anifold-gaskets

 

And while your in there check the FI spider as they are known to leak & dilute the engine oil:

http://troubleshootm...fuel-injector-1






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