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Is the engine running or off when bleeding the master cylinder? ... brakes?

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Old Jun 5, 2023 | 06:32 PM
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JWKinRVA's Avatar
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Default Is the engine running or off when bleeding the master cylinder? ... brakes?

Is the engine running or off when bleeding the master cylinder?

Is the engine running or off when bleeding the brakes?

Thanks!

JWKinRVA


 
Old Jun 5, 2023 | 10:13 PM
  #2  
toyomoho's Avatar
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From: PTW
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Off for both.

If the car has antilock brakes read up on bleeding the master cylinder. If air gets into the ABS system module it may need cycling via an electronic tool or a work around for said tool.to power the ABS solenoids and move the air out.
 
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