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-   -   Coolant leak (https://blazerforum.com/forum/engine-transmission-35/coolant-leak-81252/)

Jlhazen 08-23-2013 05:27 PM

Coolant leak
 
I have a 96 blazer that is leaking coolant from somewhere in the back of the engine. When I tried burping the coolant system the coolant was leaking under the car from around the transmission. I have replaced the water pump and the t-stat. Any help?

ol' grouch 08-23-2013 05:52 PM


Originally Posted by Jlhazen (Post 598020)
I have a 96 blazer that is leaking coolant from somewhere in the back of the engine. When I tried burping the coolant system the coolant was leaking under the car from around the transmission. I have replaced the water pump and the t-stat. Any help?



The 4.3 is notorious for the intake leaking. It leaks out around the base on the intake and dribbles down the back of the block.

Jlhazen 08-23-2013 06:02 PM

Thanks for the advice ill have to check it out

BlackBeauty43 08-24-2013 06:09 PM

Sounds like an intake manafold gasket repair. I did this repair twice. I posted a thread about the procedure and tips if you want to do it yourself! Check it out :)

eisterd 08-28-2013 07:16 PM

check the steel tube that connects to the intake for the heater. The plastic retainer and rubber in there could be shot....it's a popular place to leak

Jlhazen 09-02-2013 08:29 PM

Tore down and replaced the intake manifold gasket. Had a little trouble getting the distributor timing right but when I did it fired right up. No leak and she runs between 194 and 198/199 when hot. Thanks for the help.


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