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Is there a check valve on the vacuum line to power brake booster on a Ford Freestar?
Wiki User
∙ 12y ago
Yes, it is typically in the fitting on the booster where the vacuum line is attached.
Wiki User
∙ 12y ago
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Brake pedal vibrates when sitting still?
Check for vacuum leak at brake booster
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Perhaps a vacuum leak check power brake booster and check valve at booster
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Check the brake booster vacuum line, if it is good then it may be the booster itself. Of course check the obvious first, fluid level, brake bleeding, pad and shoe wear.
Have an 89 Chevy astro have changed all vacuum lines won't idol?
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