Brake fluid flush
Drifting
Joined: May 2007
Posts: 1,552
Likes: 324
From: Mid Ohio
Well.. technically if you want the knifes edge on bleeding you'd flush each corner until clear flows for about 10 pumps of the pedal. If you do that then sequence doesn't really matter.
Personally on my cars I do rears then fronts. And I let it flow clear for a minimum of 5 pumps.
If flushing a car for the first time.. I'll go 10 pumps and then re-do the car in 3-6 months.
Personally on my cars I do rears then fronts. And I let it flow clear for a minimum of 5 pumps.
If flushing a car for the first time.. I'll go 10 pumps and then re-do the car in 3-6 months.
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Racer
Joined: Sep 2013
Posts: 294
Likes: 284
From: Snohomish, WA
St. Jude Donor '21-'22-'23
I have always done the furthest to closest procedure and my mind was blown when I used my Tech2 clone and performed the "Automated Bleed Procedure" a couple weeks ago.
Get this: Drivers Front > Passenger Front > Passenger Rear > Driver Rear!
The other interesting take away was that I bleed my brakes ~2 times per year due to track time with Dot4 (conventional method RR>PR>PF>DF). The fluid always comes out nice and clean-ish. When I performed the Automated Bleed (which cycles the ABS pump), DF looked clean, PF looked clean, PR was a darker amber color(!?), DR looked clean. So, my takeaway from this was that by cycling the ABS pump, it was able to purge a pocket of older fluid that does not get purged using a conventional bleed procedure.
The downside to the Automated Bleed Procedure is that you will use ~2+ (500mL) containers of fluid. Based on this, I will mainly use the conventional method to save on fluid and periodically will use the Automated Bleed Procedure to ensure a complete purge.
Get this: Drivers Front > Passenger Front > Passenger Rear > Driver Rear!
The other interesting take away was that I bleed my brakes ~2 times per year due to track time with Dot4 (conventional method RR>PR>PF>DF). The fluid always comes out nice and clean-ish. When I performed the Automated Bleed (which cycles the ABS pump), DF looked clean, PF looked clean, PR was a darker amber color(!?), DR looked clean. So, my takeaway from this was that by cycling the ABS pump, it was able to purge a pocket of older fluid that does not get purged using a conventional bleed procedure.
The downside to the Automated Bleed Procedure is that you will use ~2+ (500mL) containers of fluid. Based on this, I will mainly use the conventional method to save on fluid and periodically will use the Automated Bleed Procedure to ensure a complete purge.
Racer
Joined: Sep 2013
Posts: 294
Likes: 284
From: Snohomish, WA
St. Jude Donor '21-'22-'23
Once installed, the Automated Bleed Procedure can be found in the Chassis sub menu. With theTech2 you can also turn the ABS pump off/on for testing purposes as well if you didn't want to burn through a bunch of fluid.