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WEEEEEE
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201 Posts
Discussion Starter #1
Hey, just checking in to see if anyone else is having a similar problem?

I took my car out of storage for the first time since winter and the brake pedal goes to the floor. After pumping the brake pedal there it still goes to the floor. Master cylinder is full. Car drove fine with no problems when put away in October.

Thanks in advance.
 

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Premium Member
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15,158 Posts
Likely a leak in a vacuum line.

while idling does the rpm change when you press down on the brake?
 

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WEEEEEE
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201 Posts
Discussion Starter #3
Likely a leak in a vacuum line.

while idling does the rpm change when you press down on the brake?
No. The RPM does not change when rev’d up. Also checked the abs fuses thinking maybe something blew but they have power. I removed the master cylinder cap and had someone press the brake pedal and the fluid never moved but I could feel the plunger in the master cylinder move when pedal was released. Car has about 24,000 miles as it’s not driven year round and no brake work has ever been done yet.
 

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Premium Member
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check the brake linkage to the pedal. If that's working then either the master or the booster is bad.

drain and remove the master cylinder (remember to use a line wrench or you'll round out the fittings on the brake lines).
Normally there isn't a linage between the booster an the master, so the master just can be pulled out, but I haven't had to separate the 2 from each other, so it might be different.
If it's leaking from the backside of the master, you'll notice it being wet, and that's all that needs to be replaced.
 

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WEEEEEE
Joined
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201 Posts
Discussion Starter #5
check the brake linkage to the pedal. If that's working then either the master or the booster is bad.

drain and remove the master cylinder (remember to use a line wrench or you'll round out the fittings on the brake lines).
Normally there isn't a linage between the booster an the master, so the master just can be pulled out, but I haven't had to separate the 2 from each other, so it might be different.
If it's leaking from the backside of the master, you'll notice it being wet, and that's all that needs to be replaced.
Ok thanks for your help I will take another shot at it this weekend hopefully!
 
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