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Old 07-18-2006, 12:15 AM
E320wagon'94's Avatar
Slow and loud, inside
 
Join Date: Mar 2005
Location: Santa Fe, NM
Posts: 240
Help!!! 240D Brake Insanity

When I go to hit the brakes in the 240D (hittng the pedal hard, not normal stopping) the pedal pushes back and I lose almost all braking. It has become a major safety issue, I already rear ended an exlorer (lightly, no damage to the ford, just broke my grille insert). The vacuum pump was recently rebuilt (torn diaphrahm, not sure if oil in the system could be causing it?) and I just replaced the front brake pads this weekend. Someone please tell me whats wrong? Any help is greatly appreciated.
Thanks
-Zach
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  #2  
Old 07-18-2006, 01:45 AM
whunter's Avatar
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Join Date: Dec 2003
Location: Metro Detroit, Michigan
Posts: 17,350
Answer

Check how many inches vacuum you have going to the power booster.

Step on the brake and check (again) how many inches vacuum you have going to the power booster.

Should be not less than thirteen inches of vacuum.

You may also have bad brake flex hoses.

Brake:
Brake:



Rebuilding the Vacuum Pump on the 617 Engine
http://diymbrepair.com/easley/Rebuild_vac_pump.htm

1982-240D-Vacuum System
1982-240D-Vacuum System

Vacuum pump lesson learned
http://www.peachparts.com/shopforum/diesel-discussion/121744-vacuum-pump-lesson-learned.html#post872760

Vacuum Pump Gasket Sealer & Torque
Vacuum Pump Gasket Sealer & Torque
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