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Master Cylinder worn out!


delaware74b

Member
Joined
Feb 19, 2011
Messages
65
Reaction score
3
Points
8
Vehicle Year
2004
Make / Model
Ford Ranger
Engine Type
3.0 V6
Engine Size
3.0
Transmission
Manual
2WD / 4WD
2WD
At 318K miles, I had the classic 'air in the lines' feel to the clutch pedal, complete with almost 2 inches of soft pedal and poor pedal return. I found both the clutch pedal switch and master cylinder were shot. The return of the pedal is 'assisted' by the switch's internal springs as seen in the first picture.

I picked up a new switch and pushrod assembly at amazon for about $35. I got a really good price on the factory master cylinder assembly (part number 6L5Z-7A543-AB) for $105! It is pre-filled and pre-bled out of the box. I also got a spare @#!# retainer for $1.35 (part number 6C3Z-7A581-A). BTW, Ford calls it a 'special retainer' in the computer.

The whole job was 2 hours, 1 hour of fighting with the cold and wheel well liner. Plug and play, I didn't have to bleed the clutch at all. The fluid in the old master cylinder looked like mud and was full of silver metallic bits. Fluid was changed 2 years ago due to slave cylinder failure. The truck shifts better but as well as can be expected for the mileage......
 

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