2002 aztec coolant leaking

[aztec2002]

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

 

[melsg5]

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.

 

[mdkelly52]

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?

 

[melsg5]

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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[omologato]

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.