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08-08-2012, 06:05 AM
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Hummer Expert
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Join Date: Feb 2008
Location: Portland, OR
Posts: 948
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Brake System Flush
Anything to it?
I've done the search and didn't come up with much except something about the ABS scan tool possibly being needed. WTF is that?
Is not just as simple as sucking out the old fluid in the master cylinder, dumping in fresh and pumping it out of each line until it comes out new and without air?
RR, LR, RF, LF sequence...
Any tips and/or confirmation would be awesome. TIA!
__________________
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2006 HUMMER H2
MOOG Front End
Diablo InTune w/DiabLew Tune
Cognito Steering Support
OBX LT Headers
Air Raid Filter w/Tube
External Trans Cooler -Radiator Bypass
Corvette Servo
Rancho 9000 Adjustable Shocks-
Rancho Steering Stabilizer
20" Chrome Fuel Hostage - Cooper ST Maxx
Slotted Rotors/Ceramic pads/Steel Lines
Viper Smart Start
iPod/Video Interface
HID Head and Fog Lights
Optima Red Top w/ Priority Start Cut Off Mod
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08-09-2012, 07:06 PM
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![[__--MUD--__]'s Avatar](image.php?u=8286&dateline=1300594796) |
Hummer Expert
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Join Date: Dec 2007
Posts: 705
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Re: Brake System Flush
No...  but while your on your maintenance kick- I'd flush out your powersteering good w/ a high quality synthetic powersteering fluid. You'd be suprised how easy it is to cook the **** out of that fluid.
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08-09-2012, 08:26 PM
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Hummer Expert
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Join Date: Mar 2009
Location: Burnsville, MN
Posts: 657
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Re: Brake System Flush
it is pretty simple actually. the bleed valves are self bleeding.
1. i flushed out my system about a month ago. i completely drained the whole system.
2.filled resivoir
3. attached a tube over the bleed valve and ran to a bucket.
4. started the engine and pumped brakes until fluid came out of tube in to bucket.
5. refilled resi. and moved to next brake repeatign the process above.
when pumping the brakes, i actually could get on my knees and use my hand to pump the brake while watching under the vehicle for fluid to come out.
with the self bleeders, it is a very simple process.. alot better than a 2 man job and having to screw with the beed vavle after every pump.
__________________
2003 Black Hummer H2 Adventure Package
4.88 gears *** Cognito UCA & SwayBar Links *** Kryptonite tie rods *** K&N CAI *** 37x12.50xR20 BFG KM2 Mud Terrain's *** 20x10 Black KMC Rockstars *** EBC Slotted Rotors *** N-FAB Sidesteps *** Line-X Grill *** Recon Smoke Cab Lights ***Diablo Predator U7193
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08-09-2012, 08:41 PM
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Hummer Expert
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Join Date: Feb 2008
Location: Portland, OR
Posts: 948
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Re: Brake System Flush
Quote:
Originally Posted by Hellz
it is pretty simple actually. the bleed valves are self bleeding.
1. i flushed out my system about a month ago. i completely drained the whole system.
2.filled resivoir
3. attached a tube over the bleed valve and ran to a bucket.
4. started the engine and pumped brakes until fluid came out of tube in to bucket.
5. refilled resi. and moved to next brake repeatign the process above.
when pumping the brakes, i actually could get on my knees and use my hand to pump the brake while watching under the vehicle for fluid to come out.
with the self bleeders, it is a very simple process.. alot better than a 2 man job and having to screw with the beed vavle after every pump.
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Huh?? Let me get this straight. Those bleeder valves are one way only? They let air out but not in?? I've never heard of that....
I bought the little 'one man' bleeder kit but if it's really not needed I'll take it back.
__________________
_____________________________________
2006 HUMMER H2
MOOG Front End
Diablo InTune w/DiabLew Tune
Cognito Steering Support
OBX LT Headers
Air Raid Filter w/Tube
External Trans Cooler -Radiator Bypass
Corvette Servo
Rancho 9000 Adjustable Shocks-
Rancho Steering Stabilizer
20" Chrome Fuel Hostage - Cooper ST Maxx
Slotted Rotors/Ceramic pads/Steel Lines
Viper Smart Start
iPod/Video Interface
HID Head and Fog Lights
Optima Red Top w/ Priority Start Cut Off Mod
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08-09-2012, 09:54 PM
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Hummer Expert
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Join Date: Mar 2009
Location: Burnsville, MN
Posts: 657
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Re: Brake System Flush
ya, they are self bleeding.
you will still need to put a wrench on them to open them up, but it is like only a 1/4 to 1/2 a turn. put a tube on it and pump the brake till its just all fluid. then tighten it up to close off the valve.
so here is an edit to clarify the steps above.
3. loosen the bleeder valve 1/4 to 1/2 a turn then attached a tube over the bleed valve and run to a bucket.
obviously you will want to tighten the valve when done. might sure it is nice and tight.
i bought a couple bottles of fluid, so i went pretty heavy on bleeding the fluid come out. i also wanted to make sure i flushed out whatever was left in after i drained it.
i would return the kit you bought, and spend like $1 on tubing (forgot the size) if it will fit over a zerk fitting, it will fit on the valve.
i picked up 2 ft worth, but only needed about 1ft to the bucket.. i cut it short so i could watch the fluid coming out. this is just a standard air vacuum hose/tubing.
didnt need anythign fancy, just needed something so it wouldnt cause a mess on the ground, and allowed me to collect all the fluid in the bucket. if you dont use a tube or hose, it will get very messy, and make it difficult to watch the bleeding. if you had the choice, pick up clear tubing to make it simplier.
__________________
2003 Black Hummer H2 Adventure Package
4.88 gears *** Cognito UCA & SwayBar Links *** Kryptonite tie rods *** K&N CAI *** 37x12.50xR20 BFG KM2 Mud Terrain's *** 20x10 Black KMC Rockstars *** EBC Slotted Rotors *** N-FAB Sidesteps *** Line-X Grill *** Recon Smoke Cab Lights ***Diablo Predator U7193
Last edited by Hellz : 08-09-2012 at 10:02 PM.
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08-09-2012, 10:05 PM
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Hummer Expert
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Join Date: Mar 2009
Location: Burnsville, MN
Posts: 657
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Re: Brake System Flush
i had orignally planned on buying the same kit.. then saw the auto parts store had self bleeders, but they didnt have any for the H2.
later i looked in the manual, and it said they are self bleeding valves. so it actually made my day.
__________________
2003 Black Hummer H2 Adventure Package
4.88 gears *** Cognito UCA & SwayBar Links *** Kryptonite tie rods *** K&N CAI *** 37x12.50xR20 BFG KM2 Mud Terrain's *** 20x10 Black KMC Rockstars *** EBC Slotted Rotors *** N-FAB Sidesteps *** Line-X Grill *** Recon Smoke Cab Lights ***Diablo Predator U7193
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08-10-2012, 05:12 AM
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Hummer Expert
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Join Date: Feb 2008
Location: Portland, OR
Posts: 948
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Re: Brake System Flush
Quote:
Originally Posted by [__--MUD--__]
No...  but while your on your maintenance kick- I'd flush out your powersteering good w/ a high quality synthetic powersteering fluid. You'd be suprised how easy it is to cook the **** out of that fluid.
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Thanks for that... it's the one thing I haven't done. I don't know. At this point the front end is done and headed in for an alignment in the morning.
I have a oil pressure sensor that seems to be faulty, gauge pegged to 80 only when on---
I have a small leak out of my rear diff, should have used thread sealant on that drain plug. Now I get to re-fill with more Red Line..
And I might have developed a small leak in the top of my steering box while getting that darn Pitman arm off.
That's three small projects for a day. Maybe on that day I'll throw in the PS steering flush. OR- maybe I'll just suck it out and run it, repeat, repeat, repeat. I could actually do that while I'm spraying down exhaust bolts for week with screw loose....
BECAUSE--- Right now----
IT'S HEADER TIME! 
__________________
_____________________________________
2006 HUMMER H2
MOOG Front End
Diablo InTune w/DiabLew Tune
Cognito Steering Support
OBX LT Headers
Air Raid Filter w/Tube
External Trans Cooler -Radiator Bypass
Corvette Servo
Rancho 9000 Adjustable Shocks-
Rancho Steering Stabilizer
20" Chrome Fuel Hostage - Cooper ST Maxx
Slotted Rotors/Ceramic pads/Steel Lines
Viper Smart Start
iPod/Video Interface
HID Head and Fog Lights
Optima Red Top w/ Priority Start Cut Off Mod
Last edited by pdxrealtor : 08-10-2012 at 05:14 AM.
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