brake pump?
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Cargo Master
Joined: Aug 2004
Posts: 3,455
Likes: 8
From: Williams Lake B.C.
brake pump?
1994 F-350 1 ton dually.
PSD 5spd.
The brakes are only working sometimes.
When you step on the brake pedal its "hard" and very little brakes.
Other times they work fine.
Fairly new pads and shoes , lots of brake fluid.
Could it be that vacuum pump?
Whats the proper name I looked on Ebay and couldnt find anything.
PSD 5spd.
The brakes are only working sometimes.
When you step on the brake pedal its "hard" and very little brakes.
Other times they work fine.
Fairly new pads and shoes , lots of brake fluid.
Could it be that vacuum pump?
Whats the proper name I looked on Ebay and couldnt find anything.
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Joined: Nov 2001
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From: Ft Scott
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Joined: Mar 2007
Posts: 186
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From: Lebanon MO
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Post Fiend
Joined: Apr 2004
Posts: 12,835
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From: Silver Lake Dunes, MI
You need a vacuum gauge to know if the pump is doing it job well enough. It will still pull a vacuum just not enough. It should be able to pull 18 in hg. If not check it right off the pump. If that is good then you have a leak else where like mklemin said
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Senior User
Joined: Oct 2005
Posts: 400
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From: Jeffersonville IN
If you can't get one on flebay they are a stock item at Autozone, replaced mine about 2 months ago I think it was 89.00 plus 20.00 core charge. They will loan you the puller to remove the pulley. Dont forget the bolts go in the pump flange before you install the pulley. You probly get enough vacuum to operate a/c and heater valves but not enough for brakes like TJ said you need at least 18" for brakes to work properly. JEEP1947