I got in my car this morning and had no breaks. it just went straight to the floor. but If i turn the car off i have pressure in the pedal but if its on i have none. So i checked my break fluid and it was low so i topped it off. Only it didn't solve my problem. i looked around the M cylinder but saw no leakage but there's leakage under my car. Anybody know whats going on?
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Brakes.
If the fluid was low, you have a leak. Chances are, there's air in the lines because of it. That would cause you to lose pedal pressure.
You could also have an issue with your booster.
Inspect your lines to see if there are any leaks. Replace both the master cylinder AND the brake booster.
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Oops my bad. Its late.Originally posted by deevergote View Post
I checked the lines. no issues. Should i try to bleed? or just go for the cylinder and booster?Comment
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MRT
37.5 MPG, AC on, cruising at 80.
30.0 MPG, AC on, aggressively driving around 90.
27.5 MPG, no AC, cruising at 90 with occasional gridlock. 40 degrees Fahrenheit
Lots of DIY videos specifically for our car
Get some awesome wipers! <-- It's a DIY
Originally posted by Tippey764Originally posted by deevergoteComment
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the leakage was on my down pipe. im thinking its unrelated.Comment
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Was it brake fluid?MRT
37.5 MPG, AC on, cruising at 80.
30.0 MPG, AC on, aggressively driving around 90.
27.5 MPG, no AC, cruising at 90 with occasional gridlock. 40 degrees Fahrenheit
Lots of DIY videos specifically for our car
Get some awesome wipers! <-- It's a DIY
Originally posted by Tippey764Originally posted by deevergoteComment
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first diagnose if theres a brake fluid leak. i had the same problem as you and i had a bad master cylinderComment
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I couldnt really tell. looks like oil but it could just be dirt off the engine in the b fluid.Comment
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Clean your engine bay. It's much easier to find leaks that way.
Top off your brake fluid.
Have a friend sit in the drivers seat and stomp on the brake pedal.
Look for the leak.MRT
37.5 MPG, AC on, cruising at 80.
30.0 MPG, AC on, aggressively driving around 90.
27.5 MPG, no AC, cruising at 90 with occasional gridlock. 40 degrees Fahrenheit
Lots of DIY videos specifically for our car
Get some awesome wipers! <-- It's a DIY
Originally posted by Tippey764Originally posted by deevergoteComment
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Stomp the pedal and listen for any squirting. Master cylinder may have blown a seal.Comment
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Same thing happend to me few months ago.
There was no leaks anywhere and there was no brake.
I replaced M cylinder and now it's working.
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Thanks for the help guys. im looking into it. will a junkyard cylinder work or do i need a rebuilt one? Will i need to bleed the brakes when im done?
EDIT: also if im taking the M C out, how do i empty it?Last edited by WiggneedsJDM; 03-12-2011, 12:28 PM.Comment
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Junkyard cylinder is a gamble. Buy a rebuilt one or rebuild it yourself.Originally posted by WiggneedsJDM View Post
Yes, you need to bleed the brakes.
Get creative. I bought a siphon system from autozone for like $3. I've also heard of people using turkey basters. I wouldn't use it for food after that, though.MRT
37.5 MPG, AC on, cruising at 80.
30.0 MPG, AC on, aggressively driving around 90.
27.5 MPG, no AC, cruising at 90 with occasional gridlock. 40 degrees Fahrenheit
Lots of DIY videos specifically for our car
Get some awesome wipers! <-- It's a DIY
Originally posted by Tippey764Originally posted by deevergoteComment
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just buy a remanufactured one. i paid like 30 bucks for mine from carquestOriginally posted by WiggneedsJDM View PostComment
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