Brake Pedal Pulse
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Junior User
Joined: Feb 2016
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From: East Tennessee
I believe your problem is air still in the brake hydraulic system. Gravity bleeding cannot remove air that has gotten trapped on a high spot in the tubing. The fluid just flows past the bubbles of air (similar to what can happen to a cooling system).
A hand vacuum pump is more reliable or take to a shop and have them use a pressure bleeding system. Or you could try the time honored method using a person in the cab pushing on the brake pedal while you open a bleeder screw. The reason the pedal method works so well is that there is a lot of fluid flow, which takes the air bubbles with the fluid.
Larry
A hand vacuum pump is more reliable or take to a shop and have them use a pressure bleeding system. Or you could try the time honored method using a person in the cab pushing on the brake pedal while you open a bleeder screw. The reason the pedal method works so well is that there is a lot of fluid flow, which takes the air bubbles with the fluid.
Larry
Today I noticed it is about gone air has either surfaced or my helper and I got it with as stated the old tried and true method of pushing pedal as I opened bleeder closing just before pedal bottom. Thank you for the reply.
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Junior User
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From: East Tennessee
Oh For Pete's Sake, 
UM....Did you watch the video??? or read any of the preceeding posts??? before you responded? It is about replacing the the ATF in the hydroboost and power steering system......So, YEEEESSSSSS!
I guess the dude in the video could not help but to show the brake fluid reservoir since it is so close to the fittings and lines for the hydroboost..
UM....Did you watch the video??? or read any of the preceeding posts??? before you responded? It is about replacing the the ATF in the hydroboost and power steering system......So, YEEEESSSSSS!
I guess the dude in the video could not help but to show the brake fluid reservoir since it is so close to the fittings and lines for the hydroboost..
Posting Guru
Joined: Jan 2013
Posts: 2,215
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From: North Lake Tahoe
Still fighting the same issue with my truck, going to bleed the system one more time tomorrow and if that doesn't help with anything I'm going to replace the brake booster. Will let you know if I come up with anything.
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Junior User
Joined: Feb 2016
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From: East Tennessee
Can never find that stuff when looking on www.
Logistics Pro
Joined: Oct 2011
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From: Mcdonough, GA
Speed Bleeder Bleeding Brakes Bleeding Motorcycle Brakes Automotive Bleeder Screw Brake Bleeder
I always to seem to be working on brakes when no one is home. These things make it much easier.
I always to seem to be working on brakes when no one is home. These things make it much easier.
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Joined: Nov 2006
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From: North of Greenville
Oh For Pete's Sake,
UM....Did you watch the video??? or read any of the preceding posts??? before you responded? It is about replacing the the ATF in the hydro boost and power steering system......So, YEEEESSSSSS!
I guess the dude in the video could not help but to show the brake fluid reservoir since it is so close to the fittings and lines for the hydro boost..
UM....Did you watch the video??? or read any of the preceding posts??? before you responded? It is about replacing the the ATF in the hydro boost and power steering system......So, YEEEESSSSSS!
I guess the dude in the video could not help but to show the brake fluid reservoir since it is so close to the fittings and lines for the hydro boost..
Alright... I stand corrected...
I had read all the preceding posts before responding, but my mind was sort of landlocked onto the brake system and just didn't connect the hydro boost dots into the discussion. Also, the IT gods have our network at my office locked up such that I cannot stream videos, and I'm such a penny-pinching data miser that I won't do it on my phone.
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Junior User
Joined: Feb 2016
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From: East Tennessee
Speed Bleeder Bleeding Brakes Bleeding Motorcycle Brakes Automotive Bleeder Screw Brake Bleeder
I always to seem to be working on brakes when no one is home. These things make it much easier.
I always to seem to be working on brakes when no one is home. These things make it much easier.
Elder User
Joined: Sep 2011
Posts: 979
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From: Vancouver
Speed Bleeder Bleeding Brakes Bleeding Motorcycle Brakes Automotive Bleeder Screw Brake Bleeder
I always to seem to be working on brakes when no one is home. These things make it much easier.
I always to seem to be working on brakes when no one is home. These things make it much easier.
The sealant or grease on the outside of the bleeder is enough to prevent air from being sucked into the caliper.
Posting Guru
Joined: Sep 2014
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From: Asheville-where weird is
Alright... I stand corrected...
I had read all the preceding posts before responding, but my mind was sort of landlocked onto the brake system and just didn't connect the hydro boost dots into the discussion. Also, the IT gods have our network at my office locked up such that I cannot stream videos, and I'm such a penny-pinching data miser that I won't do it on my phone.
I had read all the preceding posts before responding, but my mind was sort of landlocked onto the brake system and just didn't connect the hydro boost dots into the discussion. Also, the IT gods have our network at my office locked up such that I cannot stream videos, and I'm such a penny-pinching data miser that I won't do it on my phone.
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