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-   -   Coolant leak???? (https://www.dieselbombers.com/chevy-gmc-duramax-01-04-lb7/66695-coolant-leak.html)

Back-in-Black 01-06-2011 07:11 PM

Coolant leak????
 
2002, LB7.

Very slight coolant leak. When pressurized, you can see a small amount of coolant drip off the oil filter.

Anyone got a clue where this is coming from??

mcsd913 01-06-2011 07:24 PM

I have an 02 and my coolant leaks at the reservoir.

brettdfny19 01-07-2011 11:45 PM

could be from a hose with a wear spot or the water pump possibly...

cstlb7 01-12-2011 01:38 PM

heads maybe:argh:

dieselgearhead 01-19-2011 08:26 PM

Or it could be from the cross over built into the bellhousing. There are 2 plates bolted back there on the top slants, one goes to the oil filter housing and the other is blocked off. Had a coolant leak on mine and it ended up being a broken bell housing

Back-in-Black 01-22-2011 06:19 PM

Some good places to look. Thanks for the replies. I know it's not the water pump because that's what I thought it was and why I pressurized it. It's coming from somewhere in the rear of the motor and it's just barely dripping when under pressure.


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