Where is evap canister on 2003 buick century - 2000 Jeep Grand Cherokee

further problems with evap system causing fuel starvation.... try running with evap hose vented to atmosphere.. if solves your problem faulty evap canister.... if not! blocked pipe or faulty evap presser valve

There is a black box close by and it's called the evap canister. On the fuel line there is a fuel filter.

P0446 Evaporative Emission Control System Vent Control Circuit Malfunction The code P0446 is set when the engine computer recognizes a fault or restriction at the vent control part of the Evaporative emission control system (EVAP). The description of the fault varies between different car manufacturers, but one thing is common, the code P0446 doesn't directly point to a defective part; some testing might be required to pinpoint the faulty component. What can cause the code P0446: - faulty vent control valve - blockage at the vent hose, vent filter or vent control valve - open or short in the vent control valve circuit - bad charcoal canister - EVAP system leak - faulty EVAP system pressure sensor - bad vacuum switching valve (VSV) - stuck open purge valve (solenoid)

it is from fuel tank to canister(charcoal) and then are burn to throttle body (evap system)
hope it helps

There is no evap canister on your car. What's the problem? Fault code?

It is not under the hood. It is mounted under the car by the gas tank.

A code P0440 could mean one or more of the following has happened:

• The gas cap is not installed or working properly
• The purge solenoid has failed
• The canister is plugged and not working properly

Possible Solutions: with a P0440 OBD-II trouble code, diagnosis can be tricky at times. Here are some things to try:

• Remove and reinstall the gas cap, clear the code, and drive for a day and see if the codes come back.
• Inspect the EVAP system for cuts/holes in tubes/hoses
• Inspect for damaged or disconnected hoses around the Evap purge solenoid
• Check and/or replace the sensor
• Check and/or replace the purge valve
• Have a professional use a smoke machine to detect leaks

Keep us updated.

Should be the vent box for the charcoal canister.
Your fuel tank has a vent line. This runs to the charcoal canister, then to that vent box.

If there was a leak at the gas cap. EG: Left off or loose after fill up? You will need to have the codes cleared or it will clear itself after enough key cycles. EG: Started and shut back off as many as 20 to 50 or more times.