hard break peddle

2001 MERCURY SABLE
150,000 MILES • 6 CYL • 2WD • AUTOMATIC
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[email protected]
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The car will stop at times but,the pedal will get hard and it will wistel.I looked at the calipers,air valve and pads.Could it be the booster,master cylinder or the pump?
Dec 14, 2010 at 6:58 AM
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JIS001
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Yes, it sounds like your brake booster is starting to fail.
Dec 14, 2010 at 7:02 AM
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[email protected]
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thanks man!!!Your a life saver!!!
Dec 14, 2010 at 8:11 AM
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JACOBANDNICKOLAS
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Before replacing the booster, check to make sure the vacuum hose to it is not damaged, dry rotted, cracked, or loose. Also, I recommend have a vacuum test done on it to see if can maintain vacuum. If it doesn't hold, replace it. If it does hold vacuum, then it is time to look other places.
Dec 15, 2010 at 4:25 PM
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GOODFELLAS1957
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on a reguler brake system this would indercate a vac leak to the booster if it had a vac booster ford had a hydrulic power boost assist but you have a 2001 merc this car should have come with abs (anti lock system) your broblem might be in the abs unit.
Dec 15, 2010 at 4:35 PM