Brakes have no grab. Serious. - Page 2 - 6SpeedOnline - Porsche Forum and Luxury Car Resource

Jun 9, 2016 | 09:38 AM

#16

Johnny DB

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How about a bigger version of you avatar?

Jun 9, 2016 | 11:29 AM

#17

rhart6

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Quote:

Originally Posted by Johnny DB

How about a bigger version of you avatar?

LOL
I think I have a few bigger shots at Glamatography.com. For the really good stuff I'd need your email.

Jun 10, 2016 | 07:56 AM

#18

nwGTS

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This is why I love these forums.

Sep 29, 2018 | 12:46 PM

#19

CY00

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Quote:

Originally Posted by Powerbeautysoul91

Took car off truck from east coast. Brakes were horrible. 40K miles Manual No track time. Mechanic said they were rusty from sitting with little use for 2 years. Rotors were only 1/16" lip. Pads 20% The car would barely slow on braking.
New rotors and pads. Good stuff. NO DIFFERENCE. I can slam brakes on so hard ABS triggers and the cars comes SLOWLY to a stop. Like it has no grabbing power. Many many Porsches over 45 years but never a problem like this.
Any ideas.
Thanks

my 997.2 has the exact same problem. New pads and resurfaced rotors front and rear, brake fluid flushed numerous times so definitely no air and fresh fluid. Tires are p zeros with about 8k miles. Alignment also done recently.
can hit brakes hard enough to engage abs but car stops like a train. Pedal feels a bit spongy on the first attempt but then firms up.
it could be either brake master cylinder, brake booster or some vacuum issue or bad vacuum pump?
anyone have any ideas on how to troubleshoot this?