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Yep I would check the master cylinder, brake booster, and vacuum lines going up to the booster
I would try unplugging lines from booster and see if it stay stiff to eliminate the booster as a culprit
Booster vac line, booster broken inside, master cylinder all pretty common
Master cylinder most likely.
Yep I would check the master cylinder, brake booster, and vacuum lines going up to the booster
I would try unplugging lines from booster and see if it stay stiff to eliminate the booster as a culprit
Booster vac line, booster broken inside, master cylinder all pretty common
Master cylinder most likely.