LBZ Coolant/Radiator Fluid Bleed Screw('ed) Location!!! - Diesel Place : Chevrolet and GMC Diesel Truck Forums
 
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Old 03-21-2013, 03:58 PM   #1 (permalink)
ruspoe03
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LBZ Coolant/Radiator Fluid Bleed Screw('ed) Location!!!

I'm pretty mechanical and own lots of tools but still am amazed at how hard it is to get to the radiator fluid bleed screw! There's a large bracket just above it used to support the motor-oil-fill. What tool are you guys using to loosen the coolant bleed screw??? Just changed my fluid and ended up loosening and pushing to the side that stupid bracket, which required loosening 4 large bolts if I remember right.
ALSO, how the heck are you supposed to get to the radiator fluid bleed plug on the engine block when you have 4 wheel drive...the front differential makes it impossible to get to...frustrated!!!
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Old 03-22-2013, 12:35 AM   #2 (permalink)
Maine Towing
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Are you talking about the air bleeder? If so mine is located right on top of the thermostat housing, just use a 10mm socket. I don't know of anybody who has removed the block drain plug for the coolant, most just do a couple drain and re-fills from the radiator.
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Old 03-22-2013, 07:49 AM   #3 (permalink)
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I see you have a 2007 Sierra Classic 4x4 Is post #22 what you are looking for? Coolant change? Search (coolant change) or (coolant flush) here (Maintenance & Fluids) lots to read. To drain pull the retaining clip on the bottom hose and then give it a pull.
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Old 03-22-2013, 01:36 PM   #4 (permalink)
ruspoe03
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I do know where the bleed screw is, I'm just saying I can't get to it without removing the bracket that's right above it. The picture in post #22 is not like my motor. I have a 07 Classic LBZ...I wish my bleed screw was unblocked like the one in the picture! It would be so easy...

Thanks for the replies!
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Old 03-22-2013, 01:42 PM   #5 (permalink)
ruspoe03
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I will try and post a picture...if I can figure out how, it's been a while
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Old 03-22-2013, 02:17 PM   #6 (permalink)
ruspoe03
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This bracket attaches to the fan shroud, then the oil-fill-tube, then it's bolted to the coolant inlet (where bleed screw is located, see red arrow). It's also used to secure the big plastic resonator on top of the motor...yet another bolt that needed to be loosened.
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Old 03-22-2013, 02:18 PM   #7 (permalink)
ruspoe03
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Here's another view from above.
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Old 03-22-2013, 02:37 PM   #8 (permalink)
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Pretty sure mine is the same as the pic on my LBZ. Looked at it awhile ago and dont remember seeing any bracket in the way.
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Old 03-22-2013, 02:57 PM   #9 (permalink)
ruspoe03
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Here, I outlined the bracket in yellow...Like I said, it goes from (right to left) fan-shroud to oil-fill-tube to coolant-inlet and finally to resonator.
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Old 03-22-2013, 07:31 PM   #10 (permalink)
Maine Towing
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That is really odd, I just checked mine and it is like the photo. The resonator support is a separate unit. Any chance it has been modified by somebody else?
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2006 Chevy Silverado LT 4, LBZ, 4WD, Crew Cab, DRW, 6 speed, spends her life with a 7 horse trailer hitched in the bed.
100 gal Trans-Flo aux tank
B+W Turnover mount, EGR blocked
EFI Live by "Idaho Rob" w/ DSP 5
Lift Pump at 175,000 miles, CP3 at 299,000
ALL ON MOD - credit to GMC2500HD - best $1.29 mod you can get !!!
Air box mod
Wicked hot wife
4" Flo Pro exhaust, down pipe back, cat was stolen by some scrap iron punks That's my story and I'm sticking to it!!!

Official member of the over 300,000 mile club.

Proud Member #880 of the 3500 DUALLY CLUB
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