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1998 Ford F-150 Brakes grab at low speed

Tiny
CHRISVP
  • MEMBER
  • 1998 FORD F-150
Brakes grab and lock up wheels when at very low speed 5 to 10 miles per hour
Friday, August 6th, 2010 AT 9:31 AM

4 Replies

Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Have you removed the wheels to inspect the condition of the pads and shoes? Checked the calipers for frozen condition? Flex hoses cracked? Also checked the wheel bearings for looseness(play)?
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Wednesday, March 10th, 2021 AT 11:58 AM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Inspect the disc pads for contamination-such as brake fluid/grease/oil if okay could be the brake rotors badly scored and needs resurfacing
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Wednesday, March 10th, 2021 AT 11:58 AM
Tiny
CHRISVP
  • MEMBER
  • 2 POSTS
Thanks to all who submitted. We had just completed a brake job, so it was bewildering. We finally found it to be the brake booster, the only component left to check. The internal "apply" valve was failing and allowing full vacuum at idle. Problem solved.
Until next time.
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Wednesday, March 10th, 2021 AT 11:58 AM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Thanks for letting us know
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Wednesday, March 10th, 2021 AT 11:58 AM

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