z33 intake swap and now brakes are messed up
03-12-2007, 08:28 PM
#1
z33 intake swap and now brakes are messed up
Hey guys, usually i'm in the 4th gen forum but i just helped my friend install the z33 intake manifold on his 02 and now he's having a problem with his brakes. The car had a slight air leak from where the welding of the TB neck warped the metal, we sealed it up and drove it around and everything was working fine. Well today he went to go to the store and his brake pedal is really hard to press. It has the feeling of like say, your in your car with it turned off and you keep pressing the brake pedal until the brake booster fills up and the pedal cant really be pressed down anymore. I'm assuming its something brake booster related.
The hose is connected from the brake booster to the intake manifold on what looks to be the same location used on the 350z (hose and nipple size is the same).
like i said, it was working fine the first day but now its not.
i appreciate any help, i'm sure this cant be too complicated but he needs to get it working asap and i couldnt figure it out.
thanks.
The hose is connected from the brake booster to the intake manifold on what looks to be the same location used on the 350z (hose and nipple size is the same).
like i said, it was working fine the first day but now its not.
i appreciate any help, i'm sure this cant be too complicated but he needs to get it working asap and i couldnt figure it out.
thanks.
03-12-2007, 10:13 PM
#3
Man I know but is that possible? Haha. I wouldn't know what to do about that, this z33 must suck too much air lol.
I forgot to add that I found a loose connector below the brake booster area (small and grey) I couldn't find a spot for itt o plug in, it was coming from a hole in the wheel well. We didn't unplug anything like that.
I forgot to add that I found a loose connector below the brake booster area (small and grey) I couldn't find a spot for itt o plug in, it was coming from a hole in the wheel well. We didn't unplug anything like that.
Originally Posted by alextothestars
sounds like theres too much pressure in the lines...maybe you sealed something that was supposed to be open in the process of the fix?
03-13-2007, 06:34 AM
#7
i just looked through the FSM quickly (i have to go to work in a minute) and most problems addressed are about soft pedals or vacuum leaks..so i donno, im gonna get him to take a picture of the loose connector and post it up here to see if anyone recognizes it.
thanks.
thanks.
03-13-2007, 02:08 PM
#8
make sure all vacuum lines are connected and more importantly connected where they should be or ideally. I left my brake booster cable off by accident and had a fun time getting to work with a hard peddle.
chances are the loose vacuum line once properly connected would solve the problem, as already stated.
chances are the loose vacuum line once properly connected would solve the problem, as already stated.
03-13-2007, 02:14 PM
#10
No jbweld was used. He's out there bleeding his brakes right now...wtf.
Mdeezy the loose connection was an electrical thing which he says he found plugged into the master cylinder, the brake booster hose is connected, everything appears to be connected.
Mdeezy the loose connection was an electrical thing which he says he found plugged into the master cylinder, the brake booster hose is connected, everything appears to be connected.
03-13-2007, 02:20 PM
#11
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Posts: n/a
Originally Posted by chillin014
Mdeezy the loose connection was an electrical thing which he says he found plugged into the master cylinder, the brake booster hose is connected, everything appears to be connected.
03-13-2007, 02:23 PM
#13
thank you for that.
I was trying to think of a way to letthe air our of the brake booster, but I'm just not familiar enough with how one works
I was trying to think of a way to letthe air our of the brake booster, but I'm just not familiar enough with how one works
Originally Posted by 6spd02
so that may have been the brake light sensor or fluid level sensor...either way not gonna affect the pedal stiffness
03-13-2007, 07:51 PM
#18
the hood cleared perfectly fine, we had it welded at a downward angle.
to everyone else (whos help i appreciate greatly) i dont think yall understand the seriousness of this situation, we have planned to go to galveston this thursday during our spring break and we have to take his car, and if i dont get to see chicks in bathing suits i'm gonna kill somebody.
my car is down for a swap.
to everyone else (whos help i appreciate greatly) i dont think yall understand the seriousness of this situation, we have planned to go to galveston this thursday during our spring break and we have to take his car, and if i dont get to see chicks in bathing suits i'm gonna kill somebody.
my car is down for a swap.
03-13-2007, 08:16 PM
#21
Member
Join Date: Feb 2006
Posts: 63
you are not getting vacume to your booster. the vacume line for the z33 goes into the bank 1 side of the plenum. i dont recall any other vacume ports on that side. its big u cant miss it. some nissans have a 1 way valve made into the booster hose, dont recall if that car has one, if that goes bad it can cause a situation such as this.
03-13-2007, 08:25 PM
#22
I'm going to take a look at the car myself tomorrow, I didn't get a chance to today.
My power is out so I'm responding from my sidekick.
Jamesrc I THOUGHT I remember reading something about a valve in the hardline. He told me he reversed this line for some reason to get it to reach (don't ask cause I don't know). I'm 99 percent sure we have it hooked up to the correct nipple on the plenum. I suggest he get a hose to connect straight from the booster to the plenum but we might decide to just extend after the hardline tube if there is infact a valve in it.
I'm trying to get ahold of him right now to tell him about this but houston is having some rediculous whether right now.
I will get yall pics of chicks, and z33 plenums and me walking on the beach holding hands with my maxima whatever yall want, asap.
My power is out so I'm responding from my sidekick.
Jamesrc I THOUGHT I remember reading something about a valve in the hardline. He told me he reversed this line for some reason to get it to reach (don't ask cause I don't know). I'm 99 percent sure we have it hooked up to the correct nipple on the plenum. I suggest he get a hose to connect straight from the booster to the plenum but we might decide to just extend after the hardline tube if there is infact a valve in it.
I'm trying to get ahold of him right now to tell him about this but houston is having some rediculous whether right now.
I will get yall pics of chicks, and z33 plenums and me walking on the beach holding hands with my maxima whatever yall want, asap.
Originally Posted by Jamesrc
you are not getting vacume to your booster. the vacume line for the z33 goes into the bank 1 side of the plenum. i dont recall any other vacume ports on that side. its big u cant miss it. some nissans have a 1 way valve made into the booster hose, dont recall if that car has one, if that goes bad it can cause a situation such as this.
03-14-2007, 07:10 AM
#23
okay apparently he flipped the line around to the correct position and now the pedal is really soft, go figure(unnecessary brake bleeding). i think we got it from here, i want to thank everyone for the help, i'll get him to post pictures later.
03-14-2007, 10:54 AM
#28
Originally Posted by MDeezy
the neck for the TB on the Z, would need to be cut and re-welded back on, angle it down for clearance.
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