Re: hard braking_brake servo_2 check valves?? - Saab 9-5 Bulletin Board - Saabnet.com
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Re: hard braking_brake servo_2 check valves??
Posted by Steve C [Email] (more from Steve C) on Wed, 4 Jul 2007 20:04:05
In Reply to: hard braking_brake servo_2 check valves??, Smeter, Wed, 4 Jul 2007 12:20:12
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Your car should have two check valves now. They prevent loss of vacuum to the servo under boost and also if the vacuum pump fails. They were never designed to keep oil out of the servo.
Sometime in O2, Saab did away with the pump and went with a venturi system. The is no update kit to retro fit.
Most likely the oil has come from the vacuum pump. It should be replaced with the servo, else you will ruin the new servo.
Good luck,
Steve C
posted by 65.73.12...
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