To remove the fuel filter on a 2001 Toyota Echo, first ensure the vehicle is off and the fuel system is depressurized by removing the fuel pump fuse and running the engine until it stalls. Then, locate the fuel filter, which is typically situated along the fuel line under the car or near the fuel tank. Disconnect the fuel lines from the filter using appropriate tools, and remove any mounting brackets. Finally, replace the old filter with a new one, ensuring all connections are secure.
In the gas tank. I have 2001 Echo.
yes
the fuel filter is plugged
Remove the immobilizer unit?
2001 Toyota Echo doesn't have a timing belt.
http://pdftown.com/2000-2002-Toyota-Echo-Service-Manual.html
http://www.carspace.com/guides/Toyota-Echo-How-to-change-oil
Pretty sure its the same as the 2000 Toyota echo, see related link.
For my 2002 Echo it is 3.7 Liters with a filter change.
Yes
Look in the trunk, there is cover for the brake light, remove and you will have access to change the bulb.
3.5 liters