bled brakes, still no pressure??
10-15-2006, 01:48 PM
#1
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Location: j-ville NC
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bled brakes, still no pressure??
this weekend we took the calipers off to paint them on my friends 98 z28. we put them back on and then we started to bleed the brakes, we started at the master cyl and bled that, then worked from the RR, LR, RF, LF until we were finished, we started the car up, and the pedal went straight to the floor, it wouldnt even stop the car at idle. is it supposed to do that? do we have to drive it around the block pumping the brakes to get the pressure built back up?
10-15-2006, 04:41 PM
#3
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Re: bled brakes, still no pressure??
pumped them twice, friend opene the bleeder, pressed the brake to the floor, they closed the bleeder then released the brake is there any other way of doing it that i dont know about?
10-15-2006, 05:56 PM
#4
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Re: bled brakes, still no pressure??
Sure you got all the air out? Last time I helped someone replace LS1 calipers took a lot more than a couple pumps for each wheel if that's what you're saying. Never bled the master cyl either. I'd have to look it up but think if the fluid level in the master fell too low you might have air in the ABS.
10-15-2006, 06:06 PM
#5
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Re: bled brakes, still no pressure??
will they pump up with the key on at all? if they wont then its the master but if they do then the pressure drops its the booster. you did bled till solid fluid and no air pops came out right?
10-15-2006, 11:08 PM
#6
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Re: bled brakes, still no pressure??
Did you bleed the ABS unit?
When you pump the brakes, pump them until you get some sort of resistance, hold your foot on the floor, THEN open the bleeder.
pumped them twice, friend opene the bleeder, pressed the brake to the floor,
10-16-2006, 01:48 AM
#7
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Re: bled brakes, still no pressure??
Answer the booster question (amean's post) first.
If you have an ABS box with bleeder screws, bleed the box. It should have 1 or even 2 valves. If you have a later model with no valves, you should either take it to the dealer so they can agitate the ABS box to get the trapped air out. Or, if you can bleed it enough to get the pressure fine for a short trip, go on a private gravel/wet road and try to activate the ABS, then continue bleeding.
These cars are awesome and I love them, but sometimes bleeding the brakes 10 times, still isnt enough to get all the air out. I'd invest in speed bleeders while I was at it, makes things much simpler.
If you have an ABS box with bleeder screws, bleed the box. It should have 1 or even 2 valves. If you have a later model with no valves, you should either take it to the dealer so they can agitate the ABS box to get the trapped air out. Or, if you can bleed it enough to get the pressure fine for a short trip, go on a private gravel/wet road and try to activate the ABS, then continue bleeding.
These cars are awesome and I love them, but sometimes bleeding the brakes 10 times, still isnt enough to get all the air out. I'd invest in speed bleeders while I was at it, makes things much simpler.
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