Question about 2004 Ford Explorer

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I replaced the mas cyl 2004 ford explorer. Gas padal won't work

The pedal goes to the floor board, but nothing happens. Vehicle starts. Tried disconnecting battery cables. Tried touching batt cables together after removing them from batt.

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  • jg1523 May 11, 2010

    Did you bench bleed the master cylinder? Did you bleed it after you installed it? Does it have fluid in it?

  • Ray Keckeisen May 11, 2010

    did you bleed the master cylinder, have you bled all the wheels?

  • clive pearson
    clive pearson May 11, 2010

    Hi I am Vortash you say you have just replaced your master cylinder .. now here in the uk the master cylinder is the one on the bulkhead that the pedal assembly opperates .. the slave is the one on the clutch housing .. that opperates the clutch .. is it the same in the us as I dont want to advise the wrong thing .. right get someone to look for you at the slave cylinder while you push the clutch .. see if it is actuating and opperating the clutch if not I suspect you have an air pocket in the hydraulic line .. why did you change it in the first place and why did you touch the battery cables you say the car starts ?.and its a manual not auto .. . regards Vortash



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You need to bleed the air from the system. First if you replaced the master cylinder you need to bleep both ports that the line hook too. Then hook the lines up and bleed all four corners of the vehicles brakes starting with the right rear since it is the furthest point away from the master cylinder. As you bleed the system remember to refill the master so you don't' ingest more air into the system again.

Posted on May 21, 2009


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