2008 LMM Coolant Change? - Chevy and GMC Duramax Diesel Forum
07.5-10 LMM 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 5 (permalink) Old 05-08-2010, 07:28 PM Thread Starter
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2008 LMM Coolant Change?

I am wanting to change my coolant out to the All Cool coolant and was wondering if anyone has done a coolant change and what is the best way to do it. I have not looked to see how difficult it is gonna be yet but from what I can remember it did not look like it was gonna be easy. Hope someone can tell me with experience.

Preble County, Ohio

2016 GMC Sierra Denali 2500HD CC SB 4x4 6.6L
2014 Chevrolet Impala LTZ Sedan 3.6L
2011 GMC Sierra SLT 2500 CC SB 4X4 6.6L
2008 GMC Sierra SLT 3500HD DRW CC LB 4X4 6.6L
1999 Cadillac Sedan Deville 4.6L
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post #2 of 5 (permalink) Old 05-08-2010, 07:50 PM
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dont mean to hijack your thread but im curious about the "buy backs" in your sig...horror story?

Bump for coolant flush Q

07.5 LMM Chevy CCSB Z71
Edge Evo Race, Banks Ram Air,
MBRP 5" Exhaust, Diamond Eye DP,
EGR Blocker Plate, PCV Reroute Mod
6" Fabtech, 18" Chrome Diamo 8 Karat
35"X12.50" Toyo Open Country M/T
Mag-Hytec Rear Diff Cover, Transgo Jr.
Thanks Meyer Performance and MadJack Racing.
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post #3 of 5 (permalink) Old 05-08-2010, 08:19 PM
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Not sure but I dont think there is a drain valve on them anymore so I believe you have to pull the bottom rad hose off. Looks like a crappy job to have to do.

Youngone (Pat)
Black 2009 CCLB 1 Ton LMM 4X4
400 liter in box fuel and tool tank
Custom headache rack with lights and side box rails.:rockin
Stock as she came from GM.
I added
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Alberta Beach (Edmonton) Alberta Canada
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post #4 of 5 (permalink) Old 05-08-2010, 08:22 PM
needing more money
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Interested also...

-2011 GMC LML RCLB SLE w/cognito leveling kit, fox shocks, sulastic shackles, 285/75 17 Toyo MTs and A.R.E. Z-series truck cap with Bedrug.
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post #5 of 5 (permalink) Old 05-08-2010, 08:29 PM
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There is a plug in the left side of the block to drain it. What are you putting in?

I have worked on engines all my life, spent 19 years at FreightlinnerI live in the Kootenay region of B.C. I have a 2007 NBS White 3500 GMC SLE Duramax Alison 17 inch aluminum SRW Crew-cab long-box White linex in the box and black in the wheel wells BW turn-over ball. all stock.
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