Brakes and abs question
03-17-2019, 03:02 PM
#1
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Join Date: 09-03-2006
Location: chicago
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Brakes and abs question
I am doing a brake job on my 2007 lt2 soon , and I wondering if you open the bleeder screws when pushing the piston back in ? I read all over that it should be done that way .. anybody have trouble to open the bleeder screw ? What the best way to attack it without breaking it ? I live in the rust belt area .. all tips will help thanks
03-17-2019, 03:27 PM
#2
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Join Date: 04-09-2006
Location: Vancouver, BC, Canada
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Hit the bleeders with some penetrating oil a day or two ahead of time - and yeah some have had problems undoing the bleeders. Make sure to use a 6 point socket for undoing them - DO NOT use an open end wrench.
I had ABS, and when pushing the pistons back in, I did not open the bleeders. Some say that will screw up the ABS, but I never encountered issues at all. Your mileage may differ.
I had ABS, and when pushing the pistons back in, I did not open the bleeders. Some say that will screw up the ABS, but I never encountered issues at all. Your mileage may differ.
03-17-2019, 04:42 PM
#4
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Join Date: 09-03-2006
Location: chicago
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Hit the bleeders with some penetrating oil a day or two ahead of time - and yeah some have had problems undoing the bleeders. Make sure to use a 6 point socket for undoing them - DO NOT use an open end wrench.
I had ABS, and when pushing the pistons back in, I did not open the bleeders. Some say that will screw up the ABS, but I never encountered issues at all. Your mileage may differ.
I had ABS, and when pushing the pistons back in, I did not open the bleeders. Some say that will screw up the ABS, but I never encountered issues at all. Your mileage may differ.
03-17-2019, 09:11 PM
#8
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I do open the bleeders & use a mity-vac. But shoot the bleeders with Kroil penetrating fluid a few days prior.
Some folks make their own penetrating fluid. 50/50.......... 1/2 part Acetone & 1/2 part ATF fluid.
Some folks make their own penetrating fluid. 50/50.......... 1/2 part Acetone & 1/2 part ATF fluid.
03-18-2019, 08:12 PM
#9
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Join Date: 10-18-2013
Location: North Dakota
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You "should" open the bleeders. Reason being is if you push the fluid back in too fast, you can screw up seals and filters, and if there is crud in the system, it can stir it up and also mess up filters. The system is not serviceable so that means replacement. I always open the bleeders.
03-19-2019, 07:50 AM
#10
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Join Date: 08-03-2010
Location: Lake Ronkonkoma, N.Y.
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What your trying to do is shock the tapered seat of the bleed screw. Using a quality rust penetrating spray also can help. PB Blaster, Kroil or CRC Knock'er loose are good choices.
I had a nickname "Tilden" because I did so many brake jobs working in repair shops.
Last edited by Cat Man HHR; 03-19-2019 at 08:28 AM.
