2002 aztec coolant leaking

aztec2002

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My aztec coolant is leaking on the passenger rear of the block . It looks like the head gasket is leaking . Its not in the oil it dont over heat. I replace the intake gaskets last year and the water pump last week. Any ideas? Its never over heated and i replaced the intake gaskets for preventive problems and water pump because it was thought it was do to that. 108xxx miles
 
Pressure test the system to determine the exact location of the leak. If it's the head gasket replace the gasket and make sure the head is checked at a machine shop to make sure it's perfectly flat.
 
My aztec coolant is leaking on the passenger rear of the block. there is a bolt facing the front of engine. It looks like it is coming from there the bolt is holding to lines. is it possible that this bolt is a block drain?
 
My aztec coolant is leaking on the passenger rear of the block. there is a bolt facing the front of engine. It looks like it is coming from there the bolt is holding to lines. is it possible that this bolt is a block drain?
If the bolt is used to attach something to the block its not a drain. Otherwise drain the coolant remove the bolt , reinstall with sealant
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Is it the coolant bypass pipe? The only thing I can think of. Can you take a picture and post it?

The coolant bypass pipe is held in by a bolt, the bolt itself won't leak but it may appear that way since there is an o-ring that seals the pipe connection.

Here is a picture of the pipe., Does it look like the culprit? If not a picture will help since I don't see anything else similar in the coolant system diagrams.

695168ff5ab84be0ca7bcb2ac4fa7b48-217363434.jpeg
 
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