# 4.3 CHEVY s10 2002 low coolant

**URL:** <https://community.cartalk.com/t/4-3-chevy-s10-2002-low-coolant/44880>\
**Category:** Maintenance/Repairs\
**Tags:** chevrolet, s-10, coolant\
**Created:** [February 21, 2010, 5:45pm UTC](https://community.cartalk.com/t/4-3-chevy-s10-2002-low-coolant/44880 "2010-02-21T17:45:23Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![hemi567](https://avatars.discourse-cdn.com/v4/letter/h/ecccb3/32.png) [@hemi567](https://community.cartalk.com/u/hemi567)\
**Post date:** [February 21, 2010, 5:45pm UTC](https://community.cartalk.com/t/4-3-chevy-s10-2002-low-coolant/44880/1 "2010-02-21T17:45:23Z")

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it has low coolant level but not leaking it any where. i’m thinking lower intake gaskets, but do the 4.3 have coolant go thought the plastice intake like the 3.8

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**Author:** ![edb1961](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/edb1961/32/122_2.png) [@edb1961](https://community.cartalk.com/u/edb1961)\
**Post date:** [February 21, 2010, 6:02pm UTC](https://community.cartalk.com/t/4-3-chevy-s10-2002-low-coolant/44880/2 "2010-02-21T18:02:10Z")

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The intake gasket on my 2000 Blazer 4.3 was replaced in early 2004 due to leaking. The coolant was dropping slowly (~1 pint/month). During an oil change the mechanic found a small amount of coolant as the last of the oil drainded out.

I also replaced the radiator cap with a Stant Model 10230 or 11230 (Spring-Center type). There’s some info in this link.

[http://www.imcool.com/articles/antifreeze-coolant/dexcool-macs2001.php](http://www.imcool.com/articles/antifreeze-coolant/dexcool-macs2001.php)

Ed B.

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**Author:** ![hemi567](https://avatars.discourse-cdn.com/v4/letter/h/ecccb3/32.png) [@hemi567](https://community.cartalk.com/u/hemi567)\
**Post date:** [February 21, 2010, 6:06pm UTC](https://community.cartalk.com/t/4-3-chevy-s10-2002-low-coolant/44880/3 "2010-02-21T18:06:00Z")

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this one is dueing the same thing. so it was just your lower or did you do both upper and lower gaskets?

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**Author:** ![hemi567](https://avatars.discourse-cdn.com/v4/letter/h/ecccb3/32.png) [@hemi567](https://community.cartalk.com/u/hemi567)\
**Post date:** [February 21, 2010, 7:05pm UTC](https://community.cartalk.com/t/4-3-chevy-s10-2002-low-coolant/44880/4 "2010-02-21T19:05:25Z")

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it dosn’t look like the coolant runs thought it

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**Author:** ![edb1961](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/edb1961/32/122_2.png) [@edb1961](https://community.cartalk.com/u/edb1961)\
**Post date:** [February 21, 2010, 8:38pm UTC](https://community.cartalk.com/t/4-3-chevy-s10-2002-low-coolant/44880/5 "2010-02-21T20:38:15Z")

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I believe it was the gasket between the manifold and the block.

Ed B.