brake issue after pad change
05-16-2009, 07:55 PM
#1
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brake issue after pad change
New to the F150 forum. Need advice with brakes. Changed front pads today. Bleed lines but donot have a pedal. If the engine is off I have pedal but start engine and pedal goes away. Please help Thank you
05-16-2009, 09:38 PM
#2
Senior Member
Welcome to the site.
If all you did was change the pads and didn't open the hydraulic circuit, don't understand why a bleed was needed.
Suggest air was introduced during the bleeding process, or perhaps crud got forced back into the master cylinder???? Also suggest the difference between engine running and off is due to the vacuum booster magnification of pedal force.
If all you did was change the pads and didn't open the hydraulic circuit, don't understand why a bleed was needed.
Suggest air was introduced during the bleeding process, or perhaps crud got forced back into the master cylinder???? Also suggest the difference between engine running and off is due to the vacuum booster magnification of pedal force.
05-18-2009, 03:22 AM
#4
Next time don't open the bleeders to compress the pistons. You only have to take the cap off the master cylinder and siphon off brake fluid if it will overflow when you compress the pistons. I recently did my front brakes and when finished my pedal didn't feel right. That has never happened to me before, so I thought the master cylinder would need changing. It was late and I was done for the night, but the next day the pedal felt fine.