Coolant Leak on 06 LBZ Water Pump? - Chevy and GMC Duramax Diesel Forum
06-07 LBZ & LLY Duramax Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine , Transmission, Etc.

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post #1 of 2 (permalink) Old 02-27-2012, 09:20 PM Thread Starter
Join Date: Oct 2011
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Exclamation Coolant Leak on 06 LBZ Water Pump?

Noticed a small leak today on my 06 lbz looks to be coming from where the water pump or pump cover which ever it is. it's wet on the bottom of that housing (the hose is not leaking) i'm new to these motors and was wondering if these are the same as the lb7 to change or are they different. don't see anything wet above it, theres 215,000 miles on it any idea's and how easy are the pumps to change on a lbz. any help will do thanks

2006 2500hd LBZ pretty much stock other than the Waldoch Package
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post #2 of 2 (permalink) Old 02-28-2012, 11:01 AM
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Join Date: Apr 2009
Location: Arizona
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There's a write-up in the DIY section. A few of the tools are specific and can be bought or borrowed. Some of the guys have great tips on removing the shroud, locking the motor, etc.

With 140k on mine, I'm glad that your pump has lasted this long.

2007 LBZ 4x4 regular cab
S & B Intake - Diablo Predator
285/70/17 Michelin AT's on H2's - 8' Bedslide
Amp Steps - short KYB's - Fumoto

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