Question about 1994 Toyota Pickup

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Master cyl. i have already replaced this master cylinder twice. we've checked all lines for leaks and for creases. can you tell me exactly what this master cyl. should do? its suppose to pump the same amount of fluid out from both the front and rear lines correct?

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Did You bleed your brakes after changeing the master cylinder. yes it does but most of your stoping power is up front.you might have to bleed it. start from the furthers away from the master cylinder. which would be your backleft then your right,then your front rightand left front. you have pump it ten times then hold it in until someone opens and closes the bleeder valve.you might have to this twice to each one...if that dont work check your vacuum hose coming from the master to your intake...

Posted on Jan 25, 2009

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1994 GMC Sonoma - brakes went out - we have replaced the pads, lines and they are still not engaging to stop the vehicle - could this be the calipers or the master cylinder?


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How dificult is it to replace a wheel cylinder in a 2000 Jeep.


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Losing brake fluid & have no brakes unless I pump them


quick tests to do to see if your master cyl is nackerd.

pull the valve on the brake buster out ( the 1 with rubber hose attached, and be gentle so as not to brake it)
check for moisture/ brake fluid on the valve. if there is mosture you will need a new master cyl.

you can also undo the master cyl from the booster and gently slide it forward and see if there is any fluid behind it and on the back off it if there is fluid you will need a new master cyl

good luck these checks are very easy and you should be ok to perform them

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