charlie c5

iTrader: (6)

What are the little hard plastic vacuum lines that fun from front to rear on the passanger side of the engine compartment of a 2002 WS6 Trans Am.?

charlie c5

iTrader: (6)

32 views and no ideas... ???

sroach20

iTrader: (31)

got a pic? or are you talking about the pcv hoses?

charlie c5

iTrader: (6)

Here are the two vacuum lines. Just wondering what they are for and can I delete them.

sroach20

iTrader: (31)

dont have them on my 01 z28, so i dont know.

charlie c5

iTrader: (6)

Yeah, Im thinking I saw some sort of black plastic vacuum canister under the pass headlight. Any idea what the heck thats for and if I can delete it..??

Dal1as

It's the vacuum system for your HVAC.

charlie c5

iTrader: (6)

Well, I thought the vacuum line for the HVAC was that little plastic line that comes off the back of the intake and went into the firewall there right behind the motor.?

jimmyblue

iTrader: (11)

I would bet these are the EVAP lines, from the purge
solenoid at the motor back to the cannister on top of
the fuel tank.

Dal1as

Their are 2 vacuum lines running to the passenger side hollow behind the headlight. They are a forward and return for the vaccuum canister which resides in this hollow. Got this from the GM manual. Did a bunch of research since I seem to lose vacuum pressure after a couple hour drive.

andrew69_04

iTrader: (148)

they are for your HVAC system. the vacuum line comes off the back of the intake and right by your ECM there is a Valved T-fitting. from there the vacuum ties into the firewall to your hvac controls, the other line goes across the pass fender well up to the front of the car to a vacuum canister that mounts on the underside of the passenger frame rail. that canister holds vacuum for your HVAC system. that is what its for. every camaro/firebird i've torn apart from 99-02 has all been identical having this.

2000Phoenix

iTrader: (2)

I recently started getting a gas smell in my air vents when car sits in traffic at idle. I talk to some people and they say there is a plastic hose that sits behind the intake in front of the air fit. I was told that either the hose is cracked or the the o ring fittings at each end have gone bad. Went to a pontiac dealer to see exactly where it is and they could not tell just show me the part and how much can somebody please show me a pic or where it is. I know alot of lt1 cars had this problem as well. What I need is to get the hose diameters so I can take it to nappa and get a aftermarket hose from them but the guy said he needs to see the exact size of the hose I really would be great if somebody could send me a pic or something on where it is and what it looks like.