where is the evap cannister located on a 2003 trailblazer?

[woodsliv]

I have an evap leak and checked what I can and now I can't find the evap canister. I did a smoke check and I have smoke coming out from around the tank

 

[Deleted member 20902]

The evap canister is located above the spare wheel.

 

[woodsliv]

thanks, what could be leaking on top of the tank

 

[Deleted member 20902]

There are seveal connections under there for the evap system. Very hard to say. Could be a bad vent valve, or vent solenoid. A hose may have detached, could be a split line. Good news, these tanks are super easy to drop! I've had mine out about 7 times over 6 years. Lol

 

[woodsliv]

thanks, appreciate the help

 

[eightshot627]

Isn't the vapor canister on the frame rail under the drivers seat? The vent valve is on the rear of the tank forward of the spare tire. The lines run across the top of the tank inboard. You can't see them without dropping the tank.

 

[Deleted member 20902]

Isn't the vapor canister on the frame rail under the drivers seat? The vent valve is on the rear of the tank forward of the spare tire. The lines run across the top of the tank inboard. You can't see them without dropping the tank.

You're thinking about the ABS module.

 

[mrrsm]

First... Visit THIS Link and Download a Complete Digital GM OEM Service Manual after following @Mooseman's Instructions for secure access and download:

https://gmtnation.com/forums/threads/need-service-manuals-get-them-here.361/

Follow the Index to the EVAP Section and get the Definitive R&R Instructions and Component Locations Images. It is best to check back here and inquire on your own Thread for any other "shortcuts" that might be known to other Members that can make this job easier to perform.

 

[eightshot627]

You're thinking about the ABS module.

The ABS might be there too. Look under by the "B" piller, in front of the tank is the fuel filter then the canister is right there. I had my tank out a week and a half ago on my 02 replacing the fuel pump and broke a connector on it.

 

[Deleted member 20902]

Didn't realize what year his truck was. Finally figured out where it was in his profile. 02-04 it's in front of the tank, 05+ above the spare wheel. When he said he couldn't find it, and he's a maintenance mechanic, I assumed he would have 05+ because it's hard to find above spare wheel. Thank you very much for pointing this out. Just trying to help.

 

[mudpaws672]

Isn't the vapor canister on the frame rail under the drivers seat? The vent valve is on the rear of the tank forward of the spare tire. The lines run across the top of the tank inboard. You can't see them without dropping the tank.

Yes, lucky US with the early TB and variants. That’s the terrible, lovely place it is mounted. Dumb engineering, they could’ve just put it out back above the spare tire like the later years.