Coolant Leak

[GGill]

Morning All. .



Smelled the unmistakable odor of glycol when I shut my truck down yesterday.



Restarted it & looked under the hood & saw a fine "spray" of coolant coming from the area behind the fan pulley.



I assume this is the water pump. The truck is an 03' 555/300 w/ st, ac. and has about 83 K on the odo.



Is there a seal in this location that can be replaced, or is this a symptom of a soon-to-be-failed water pump as happens w/ some gassers?



I have no experience w/ this, as I have never had a coolant leak in any of the 3 Cummins engines I have owned to date.



Thanks in advance, Greg

 

[jwilliams3]

Are you sure its the water pump?

My front freeze plug was leaking and its right behind the fan pulley mount.

 

[GGill]

Are you sure its the water pump?

My front freeze plug was leaking and its right behind the fan pulley mount.

Thanks for the reply jwilliams...



No, I'm not sure... . I didn't know there was a freeze plug at that location. How did you figure that out/ fix the leaking plug?



GG

 

[jwilliams3]

https://www.turbodieselregister.com/forums/showthread.php?t=157935&highlight=pictures



Check that thread out.

I have a picture of the problem.

 

[GGill]

Nice pics... thanks.



I will do a partial teardown tonight and hopefully see what the problem is.



GG