1980 Ford F150

1980 FORD F-150
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DMON189
  • MEMBER
  • 1 POST
Brakes problem
1980 Ford F150 6 cyl Two Wheel Drive Manual

did a brake line bleed job,front and rear,replaced 1 wheel cylinder but it seems like it is sucking in air somewhere,is master cylinder shot? all lines are good,all wheel cylinders good,so what could it be,can bleeding screws fail help please
Mar 23, 2009 at 2:50 PM
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JAMES W.
  • ✓Experienced Mechanic
  • 2,394 POSTS
If you're not leaking fluid, your not sucking air. If you're trying to "pump bleed" the brakes, many times you can't move the fluid through fast enough to get the air out. The air keeps rising in the system and stays there. On Fords,you often need a "pressure bleeder" to move the fluid through the lines fast enough to do a good job. Once you know you have all the air out, then you can take a look at the master.
Apr 1, 2009 at 5:51 PM
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