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Open Roads Forum  >  Tow Vehicles

 > Chevy 6.0L Radiator Drain?!?!?

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Decatur

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Joined: 09/30/2004

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Posted: 08/10/10 02:58pm Link  |  Print  |  Notify Moderator

My truck is right at 60,000 miles, but more importantly it is 6 years old. I've kept track of the coolant appearance and I don't see any orange looking sludge and I find no leaks so at this point everything is just fine. I know GM says Dexcool is good for 100,000 miles but I'm more concerned about the age of the coolant. Since it has that much age I'm getting my ducks in a row to drain the coolant, flush the system, and refill with fresh Dexcool.

Here's the problem......I can't find a drain petcock anywhere on the radiator [emoticon] I've looked high and low and can't find one anywhere. My friend has a 2005 2500HD Duramax and he's wanting to do his as well. Just like mine, there are no drains anywhere! I've read about a couple of threaded plugs on the engine block but nothing about draining the radiator itself.

Can someone please tell me if there is a radiator drain or is my only option to remove the lower radiator hose and drain everything that way? Better yet, does anyone have a step-by-step how-to on flushing these trucks?

Thanks,
KJ


2012 Sandpiper 32QBBS
'14 Ram 2500 | Crew Cab Long Bed| 4X4 | Cummins TurboDiesel
Curt Q20 with Ram 5th Wheel Prep
2000 Crownline 205BR
1997 Ranger Comanche 461VS
'96 Polaris SLT780 PWC
'94 Polaris SLT750 PWC
3 Wonderful Sons (18, 11, & 10)
1 forgiving wife!!!


BenK

SF BayArea

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Posted: 08/10/10 03:18pm Link  |  Print  |  Notify Moderator

I don't use the radiator drain valve and have a DIY kit to reverse
flush just about any vehicle.

Buddies site based on my truck/suv forum has the info and here is the
cooling system page: Cooling system

There are many topics concerning cooling and note the DeathCool sections

My DIY posts on some forums of mine:

One of my earlier DIY posts


Newer one:
Looking for the home built radiator flush kit that's been...

And one from rv.net:

Can't find radiator drain 97 chevy pickup

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-Ben Picture of my rig
1996 GMC SLT Suburban 3/4 ton K3500/7.4L/4:1/+150Kmiles orig owner...
1980 Chevy Silverado C10/long bed/"BUILT" 5.7L/3:73/1 ton helper springs/+329Kmiles, bought it from dad...
1998 Mazda B2500 (1/2 ton) pickup, 2nd owner...
Praise Dyno Brake equiped and all have "nose bleed" braking!
Previous trucks/offroaders: 40's Jeep restored in mid 60's / 69 DuneBuggy (approx +1K lb: VW pan/200hpCorvair: eng, cam, dual carb'w velocity stacks'n 18" runners, 4spd transaxle) made myself from ground up / 1970 Toyota FJ40 / 1973 K5 Blazer (2dr Tahoe, 1 ton axles front/rear, +255K miles when sold it)...
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lpxguy

Chalfont PA

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Posted: 08/10/10 06:42pm Link  |  Print  |  Notify Moderator

Now I HAVE seen everything!!!!


2005 GMC Sierra 3500 CC DRW D/A(FOR SALE)
2013 Crusader 335BHS TE(FOR SALE)


Jim&Peg

Central Ohio

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Joined: 07/14/2004

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Posted: 08/10/10 07:02pm Link  |  Print  |  Notify Moderator

Look on the left front bottom corner for a plastic piece with a 1/4" recess. Use a 1/4 drive ratchet and turn it about 1/4 turn. Don't try to force it any further. Then wiggle it outward and presto - it drains. At least that is where it was on my 8.1. The 6.0 should be the same.

* This post was edited 08/11/10 04:20pm by Jim&Peg *

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