Vapor canister how do you remove the charcoal canister on a 1998 VW Jetta 2.0

The charcoal canister is filled with a charcoal type filter that eliminates or absorbs the fuel vapors from the fuel tank and keeps then from getting into the air.

charcoal filter ????? Charcoal canister - evaporative emission system . Stores fuel vapors till the engine PCM - computer energizes the purge solenoid to draw vapors into the engine to be burned . How to Test and Repalce an EVAP Canister HD

Visit the on-line store, know as reliable-store, they have the repair manuals. I'm sure you will get the solution of your problem.
Chevrolet

All modern cars are equipped with an Evaporative Emission Control (EVAP)
system. The EVAP system prevents fuel vapors from the fuel tank from escaping into the atmosphere. The EVAP system collects and temporarily stores the fuel vapors in the charcoal canister. The charcoal canister is filled with activated carbon pellets that can absorb the fuel vapors. When the engine is running, the fuel vapors are purged from the canister and burned in the engine.


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Under car,usually mounted near or in front of gas tank

https://www.google.ca/url?sa=t&rct=j&q=&esrc=s&source=web&cd=7&cad=rja&uact=8&ved=0ahUKEwiWp7rZtOfKAhVBlh4KHY1RAwYQtwIINTAG&url=https%3A%2F%2Fwww.youtube.com%2Fwatch%3Fv%3DQIlti3aZ22M&usg=AFQjCNEz4TLhC8cVKeIar-IctwksFPqv_g Repair Guides Components Systems Evaporative Emission Control System... https://www.google.ca/url?sa=t&rct=j&q=&esrc=s&source=web&cd=11&cad=rja&uact=8&ved=0ahUKEwjQ4dL_tOfKAhVCGx4KHaITC3w4ChAWCBowAA&url=http%3A%2F%2Fcommunity.cartalk.com%2Fdiscussion%2F2290225%2F01-olds-alero-evap-problem-getting-choked-out-by-gas-fumes&usg=AFQjCNEyLR6NegYlup_S2N6z_mGccu_DFA&bvm=bv.113370389,d.dmo

"Canister" usually refers to the charcoal canister. It's part of an emissions system called the evap system. It's a canister that contains a refined form of charcoal that absorbs evaporated gasoline from the fuel tank, and stores it until the computer opens a valve and it is burned by the engine.

Dear Sir,
That is a part of air filter to reduce engine noise,it carry air for engine combustion through that hose till air filter,that known as air resonator. thanks.

Possible leaks, clogs, malfunctioning VSVs (vacuum switching valves), and faulty Evap charcoal canister. This system is designed to remove harmful vapors in the fuel system and preventing these vapors to enter the atmosphere, regulate fuel pressure, by sending it into the combustion chamber to be burnt.

Diagnostics for P0446:
1. Inspect vacuum hoses and pipes
between EVAP (Purge) VSV and
Charcoal Canister for leaks.
2. Replace Vapor Pressure VSV and
Canister.

Hopefully this helps

A. Diagnostics for PO441:

1. Remove Vacuum Hoses between EVAP VSV and Charcoal Canister and discard.
2. If there is a metal vapor pipe between EVAP VSV and Charcoal Canister, clean inside of vapor
pipe
3. Replace EVAP VSV and Charcoal Canister assembly with new parts.
4. Install new vacuum hoses between EVAP VSV and Charcoal Canister.


B. Diagnostics for P0446:

1. Inspect vacuum hoses and pipes between EVAP (Purge) VSV and Charcoal Canister for leaks.
2. Replace Vapor Pressure VSV and Canister.
NOTE :When performing diagnostics for an occurrence of a MIL "ON" condition, Diagnostic
Trouble Code (DTC) P0441 may be result of debris in Evaporative Emission Control System. This
may cause blockage of a vapor line, or a stuck VSV, as described in troubleshooting area of Repair
Manual.

Robert

There is a system for removing vapors from your fuel tank to protect the environment.
As u use up gas, the tank has more space to accomodate vapor from the gas. When u fill up, this could expand out thru the gas filler pipe and in the air, and be potentially dangerous.
So there is a pipe that leads from your tank to a charcoal canister. A pressure sensor reads the excess pressure in your tank, then opens an electrically controlled valve to allow the vapor to pass thru the charcoal canister, cleaning out the dirty pollutants, and releases the gas into the atmosphere.
A faulty gas cap means that the pressure sensor never reads any pressure and tells the computer that the valve has not opened. The computer then throws up a code indicating an evap leak.

So 1st, as your man said, change the gas cap. Have the engine light switched off at your local garage, or autozone, then drive and see if the light comes back on.
If it does, the evap canister for your vehicle is slightly behind the fuel tank. The spare wheel need to be removed, then the evap canister can be checked out. There are 2 or 3 bolts holding it on. It should be lowered and all the pipes inspected for leaks. Many garages will check for this leak for you with a smoke machine.

Last one I fixed had the inlet pipe eaten by a mouse/rat.. there may be some odour that attracts them. Cracked pipes are common.

Hope that helps some....