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Mark N
Mark N, Saab Master Technician
Category: Saab
Satisfied Customers: 117
Experience:  30+ years experience on all models of Saabs!
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I have a 2006 9-3 Aero, limited edition, and for initial

Customer Question

I have a 2006 9-3 Aero, limited edition, and for initial 20-30 sec the brake pedal is stiff and virtually non-functional, then works normally. Only occurs when sitting for several hours (usually more than 6 hours). Had master cylinder and brake booster just replaced including hose and valve, but did not fix problem. There must be a very slow vacuum leak but the question is where and how to fix it.
Submitted: 1 year ago.
Category: Saab
Expert:  Chad Farhat replied 1 year ago.

Hi, I'm Chad ,Welcome To JustAnswer, I'm reviewing your question and I will be be posting a replay ASAP

Expert:  Chad Farhat replied 1 year ago.

was the parts replaced new ?

is there an abs light on ?

have you had the abs module scanned with Saab scanner or equivalent ?

if you think a vacuum still exist best way to find one is hook up a smoke machine to it ?

Please let me know

Thank You

Chad Farhat

ASE Certified Technician