Should You Bleed the ABS? | Porsche GT4 Bleed and Flush
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- čas přidán 11. 07. 2024
- In this episode not only do we complete a full brake fluid flush and bleed on my 718 GT4, but we also talk about how and why you might choose to do a bleed of the ABS (anti-lock braking system) module. I'm changing my stock fluid over to Motul RBF 600 and utilizing the Motive Products Power Bleeder to do the job without a helper. The iCarsoft POR 2.0 can process the ABS bleed on your 991 or 981 Porsche's but I wasn't able to get it to work on my 718.
Products Used in this Video:
iCarsoft POR 2.0: amzn.to/3CVeJXb
Motive Products Power Bleeder: amzn.to/3KOepLK
Motive 1100 Porsche Adapter: amzn.to/3s57KYr
Motive Catch Bottle: amzn.to/3KQnjbz
QuickJacks 5000TLX: amzn.to/3BfnuKg
My Quickjack wall hooks: amzn.to/3QcODSs
Motul RBF 600DOT4 Racing Brake Fluid: amzn.to/3RGCh63
Chapter Markers:
00:00 - Introduction
01:18 - Brake Flush Procedure
08:05 - When to Bleed the ABS Module
11:00 - How to Bleed the ABS Module
12:07 - Conclusion
Jet Fuel only is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.com - Auta a dopravní prostředky
With the latest iCarsoft POR V2 update (33.50) - I am able to do the ABS bleed procedure with my 718. I'm really impressed that they continue to update the software for this unit.
Hey thanks for the info! I’ll try and update and see what we can do!
Just one thing, by adding brake fluid up to the max level after having bled your brakes, the day you replace your old pads with new (thicker)pads , brake fluid may overflow your reservoir…so i would not fill it to max with used brake pads . For the rest interesting tool!
Great video and super helpful! Minor correction for the benefits of viewers:
There are two bleeder valves on the brake calliper. Brake fluid must be drained at both bleeder valves. Always bleed the outer bleeder valve first.
Thanks, I mentioned both bleeders at 4:50 but I’ve seen recommendations both ways on bleeders. I’ve leaned toward inner first.
@@JetFuelOnly that was a direct quote from the service manual actually. But yeah. Probably won’t make much of a difference 😀
I like the fact that you are open to information from others!...thanks for the great video!
Excellent presentation and top quality content and production quality! Really appreciate the info & product information, that was especially helpful! Keep up the great work!
Thank you!
Damn bro! Loving the intro sequence.
Nice job - I know how to do this but still watched the whole video. Love how clean you are keeping the garage too!
Thanks Rudy!
Love the video, only chiming in because I’ve heard both sides of the argument; when you get into the ABS on track and the valve actuates, it’s doing the same thing. A conventional bleed at the caliper remedies it once that gets passed the valve. Again, love the video and I’m only chiming in because I’ve listened to people explain the reasoning incorrectly! Motul rocks and so does the 718 GT4. Keep the vids coming!
Thanks for watching! One thing about that argument is...how do you know all wheels had ABS applied? I'm sure the fronts will but the rears are sometimes questionable? A question I really don't know the answer to, but it's what I think about.
Thanks for the video. I’ve always used the local indy for brake bleeds. Haven’t felt confident enough to touch a major safety system such as the brakes especially since I use mine on track as well.
Great video - had the same issue attempting an ABS bleed with that unit on my 997.2. The function was supposed to be supported but it never worked. Had the dealership do a bleed for me instead.
Glad I’m not the only one!
Thanks!
Appreciate you!
The Porsche manual says to bleed abs if you replaced the module otherwise, nothing.
Porsche specifies outside bleeder first.
Excellent video! Nicely done. Thank you for all the specific recommendations on products. Does the GM adapter fit your CTS okay?
No it doesn’t fit the CTS! Had to buy a second adapter! 😔
@@JetFuelOnly The GM one doesn’t fit? Which one does it use?
I’m sorry I misread your post. The GM adapter 0108 fits the CTS.
I already had that but needed to buy the 1100 adapter to do the Porsche
@@JetFuelOnly Oh good. Thanks!
Great video. The link for the 1100 adapter and the iCarsoft tool are the same.
Thanks I’ll update.
Great video and info. Question, did you use the rubber gasket with the 1100 adapter? Thanks
Yes I did
And thank you for watching!
Great video! Can you share what wheels you're running and size? Thanks!
Thank you.
Apex Race Parts SM-10 wheels
Front 19 x 9 ET50
Rear 19 x 11 ET46
Enjoyed the video. I also have a 981 GT4 and have done my own brake bleeds with the Motive bleeder. I have never done the ABS bleed but have done the clutch slave bleed which is somewhat of a pain to reach the nipple. I asked a tech at a dealership if they do the clutch slave cylinder during a normal bleed and he said they didn't. I suspect there is not enough old fluid in either location to cause a problem if done regularly and properly. Who knows for sure though?
Thanks for watching!
You are right when you said "if done regularly". When your tech said they don't, I wonder if that means ever. When do they flush the clutch? It doesn't not sound like regularly.
the clutch bleeder screw is plastic and not worth stripping to bleed, and it's such a pain to get to. no matter what the tech has it will take to long to bleed it right so they never bother to do it.
I am starting to notice that factory service manuals for modern cars require a second person to pump the brake pedal WHILE the power/ pressure bleeder is connected and the bleeder nipple open, In other words the classic pump and hold method is added on the regular pressure bleeding process
which is confusing, I always thought that pressure bleeding does not require any movement from the master cylinder, and that two person pump and hold sequence is only for the classic manual bleeding process, but factory service manuals are very specific about it , what's your thoughts on this?
Unfortunately I haven’t seen the specific manual procedure for this car but I occasionally feel like my pressure bleeds aren’t doing the job I think they are. You may be on to something!
ABS bleeding is very finicky. If the pressure drops below the recommended level, or if the battery runs below a certain threshold, the process will fail and you have to start all over again. I used a PIWIS system and it still took me 4-5 tries to get all the conditions exactly right for it to bleed all 4 lines successfully.
Good to know thanks!
I was trying to bleed Porsche and the diagnostic tool ask me to plug in bleeding machine. Any help on that bleeding machine
The pressure bleeder setup I used in the video. It maintains pressure on the system.
Will the iCarsoft tool reset the airbag light on your GT4?
I've never tried, it's supposed to, and according to this Amazon review the answer is YES
The iCarsoft tool won't reset an airbag light if the underlying problem hasn't been resolved. Don't buy the tool thinking it's going to magically fix problems. It's a useful tool but it has limits.
only thing i gotta say is; you MUST use some secondary jacks because those primary jacks of yours HAVE FAILED many times per the various complaints, you don't want your baby on the deck with no wheels attached..... 🤠
Quick jacks have failed? They are on a hard lock and even if hydraulic pressure is lost they won’t go anywhere?
It seems to make sense that a brake fluid change and bleed involves changing all the oil no matter where it is in the system.
Generally yes but some circumstances - maybe after the first bleed you need to do some more
Great video and thanks for taking the time to make it but ouch that music...
You’re welcome! I’ll be sure to give the music feedback to my 11 yr old daughter. She was really proud of making it but she also needs to get used to criticism from the public.
So I watched that whole video, wanting to know if/how to bleed the ABS for you to say "I don't know"?
Thanks for watching. I explained u see what conditions the service manuals recommend an ABS bleed. I showed that you need to use an OBD tool to activate the ABS module. My tool didn’t work due to its own limitations. But I’ve given you all the info you need
@@JetFuelOnly i feel the title is a little misleading, personally. Thanks for the answer.
so you have Porsche and a Cadillac and you go racing (expensive) but you won't buy a good SCANNER? ...but made the video anyway? Wow...
Worthless comment.
Thanks!
I have always heard, as to caliper order, outside, then inside....I see on the video, inside to outside. Hmmmm. I'll get to the bottom of this. You have brake fluid in the Motive bleeder as opposed to using the Motive simply to apply pressure. I see 2 big advantages this way, you'll know how much fluid you are beginning with, and you most likely will never bleed the reservoir dry...Another good point when using the Motive as a reservoir, be certain to check the master cylinder brake fluid level post bleed. This weekend a pal and I tried using a scanner that required 29 PSI....we were doing it dry...the Motive kept losing pressure and the scanner approach to both bleed and flush the ABS didn't work. Also, the scanner prescribed a strange (to me) caliper bleed order: LR, LF, RR, RF.....this goes against what I have done in the past. Lastly, your video was so informative, that I felt that a little contribution was in order. "Yoy can't get something for nothing!" Nice job.....
Thanks for watching! Yeah 29psi is a lot when Motive is designed at 15.
Regarding inner Vs outer, I’ve also heard it doesn’t matter much. Lol.
@@mschacht69 I had the same issue with inside vs outside first. I've watched so many videos on the process from Porsche certified mechanics to the manufacturers of the calipers and neither agree on the order to bleed them. The only thing that is consistent is the order to bleed brakes during a conventional brake bleed. RR, LR, RF, LF. The sequence for an ABS bleed is always different.