Brakes - Ford Powerstroke Diesel Forum
 
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post #1 of 3 Old 06-20-2019, 08:04 AM Thread Starter
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Brakes

Can anyone tell me how to trouble shoot the Brake booster on a 2001 f350 4x4 7.3l. I have a spongy pedal and it gets better when you pump it. I feel it’s with the booster or the abs pump. Any help appreciated.
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post #2 of 3 Old 06-20-2019, 09:51 AM
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A soft pedal is caused by air in the lines, a leak, or bad master cylinder. A bad brake booster would make the pedal harder to push.
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post #3 of 3 Old 06-20-2019, 03:13 PM
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Power steering pump supplies hydro boost. If fluid is old and dirty it needs to be flushed. Cured my spongie pedal. Easy to do and there are videos out there on procedure. Just another thing for you to check.
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