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Why does my brake pedal rise up when I turn off the car?

After doing a CZP Silicone Master Hose Kit install my car has recently started lifting the brake pedal (with considerable force) almost immediately after I turn it off. Why? Could

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Old 04-18-2019, 06:53 AM   #1 (permalink)
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Default Why does my brake pedal rise up when I turn off the car?

After doing a CZP Silicone Master Hose Kit install my car has recently started lifting the brake pedal (with considerable force) almost immediately after I turn it off. Why? Could this be a vacuum leak in the booster? The brakes work perfectly while the car is running.
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Old 04-18-2019, 08:47 AM   #2 (permalink)
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You moved the internal check valve from the old brake booster hose to the new one, right?
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Old 04-18-2019, 09:03 AM   #3 (permalink)
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Not sure, I had to have it done at a local but good shop, didn't have time to do it myself. I'll check with them, thanks for the reply.
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Old 04-18-2019, 01:53 PM   #4 (permalink)
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Maybe air in the lines?
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Old 04-18-2019, 07:30 PM   #5 (permalink)
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Quote:
Originally Posted by JARblue View Post
You moved the internal check valve from the old brake booster hose to the new one, right?
Yes that was the issue, I can't seem to find a replacement anywhere online so fire now I have a little bit of a S14 in my Z34.
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