Snail_SS

iTrader: (3)

Like title says anyone know the part number for the vacuum tank under the intake mani? Or the actual name? Also anyone know the size of the vaccum lines? Thanks in advance

ECaulk

iTrader: (6)

You dont need it. If its cracked dont worry about it

Snail_SS

iTrader: (3)

So then just bypass it?

YelloEye

iTrader: (3)

You can just plug the vacuum tube that would go to and return from it.

Snail_SS

iTrader: (3)

Well im trying to either bypass whole tank or replace it. I know how to bypass but idk if that would case me any problems in the long run

kzak104

iTrader: (1)

mines bypassed no problems

YelloEye

iTrader: (3)

Couple threads pertaining to the tank.
https://www.cobaltss.net/forums/2-0l...ss-mod-208802/

https://www.cobaltss.net/forums/2-0l...st-mod-191361/

Snail_SS

iTrader: (3)

Well idk what the heck happened today but i got traction lost today and then it went to power reduced mode. Stopped the car amd it was running super bad sounded like a bad vacuum leak. Havent done the tank delete yet

Snail_SS

iTrader: (3)

Also have no cel. So thats making it harder to find out whats wrong

SSlobalt

Get your ECM read. You don't get the MIL sometimes, but there will still be a code listed.

When you said you lost traction, did you hit the rev limiter?

When you said you lost traction, did you go from full boost to completely letting off the gas pedal? If so, you likely slipped a clamp on one of the pipe connections at the IC. See pic below. I've had that happen twice before.

Snail_SS

iTrader: (3)

Nope i wasnt even on boost i was making a turn at maybe 20mph lost traction then it went into limp mode after maybe 100 meters after i made turn i was just coasting down the road then i tried to get in gear and it didnt wanna respond so i stopped the car it was making some weird noise. I turned off the car started it back up and everything was back to normal

Snail_SS

iTrader: (3)

Also did the tank delete didnt help one bit my car still is making a sound like if i have a goat inside it. its pissing me off but what can i do. already replaced my bpv solenoid and bpv to a forged unit but hasnt helped a bit.
When i replaced the solenoid it worked good for almost 1 week then it started again i probably need to backprobe the solenoid connection to see if its working correctly

tomj77

iTrader: (2)

Iv had no vac tank for over a year, all it does is change the bpv sound

Snail_SS

iTrader: (3)

Well for me now its just a constant noise and jerking off the car its really annoying

kzak104

iTrader: (1)

mine stayed the same and didnt change power at all, i just deleted it because its just another plastic pos to crack

ECaulk

iTrader: (6)

What intake are you running?

colodude18

iTrader: (4)

I cracked my vacuum tank wide open on the stock turbo, 26psi E85 tune going around at the road track lol, replaced under warranty. I've had it bypassed most of the time since then. Doesn't seem to affect anything, one way or another.

kzak104

iTrader: (1)

k&n sri

ECaulk

iTrader: (6)

interesting, because my k&n sri is louder than my friends sri on his ZFR (both on stock bpvs), I have my vac tank he does not

Snail_SS

iTrader: (3)

Lol well i think mine got worse with the tank delete lol im going to install it back on wed when i have access to a lift. But still idk what else to check. Would a small crack on the ic or lower/upper pipe case that kind of problem? Also shouldn't that give me a cel?

tomj77

iTrader: (2)

no it doesn't change the power, just the sound of the bpv a little. mine was bad and would not let me boost past 15 psi, it would keep opening the bpv. got rid of it, not a problem after. can say how much I hate plastic crap on a engine.

umrdyldo

iTrader: (1)

I wouldn't even hook the tank back up. I have had mine unhooked for 80k miles no issue. I believe some of the Kappa cars with LNF don't even have a vacuum tank.

As for CEL. When I blew my driver side lower pipe off the intercooler it wasn't setting a code. But my got the turbine sound coming out of the pipe was obvious.

Snail_SS

iTrader: (3)

Hmmm then yeah ill check my pipes. I mean as far as the IC goes i know i havent hit but what do i know lol. Anyome else has any ideas on what i could check

Snail_SS

iTrader: (3)

Anyone has ideas?

kzak104

iTrader: (1)

"t i got traction lost today and then it went to power reduced mode. Stopped the car amd it was running super bad sounded like a bad vacuum leak"

did you hit the limiter? loosing tracking generally wont break a car.

you have or have not checked the intercooler? you dont need to smack it for it to crack.