Does engine need to be running when bleeding brakes?

Q: Does engine need to be running when bleeding brakes?

It is not necessary to run the engine to bleed the brakes. The brake booster is operated from the vacuum of a running engine, but you do not need the brake booster functioning to properly bleed brakes.

1 Answer:

Bonita
It is not necessary to run the engine to bleed the brakes. The brake booster is operated from the vacuum of a running engine, but you do not need the brake booster functioning to properly bleed brakes.

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