Australian Car Repair Issues? Ask an Auto Mechanic for Answers ASAP
There is a special tool to turn the locking ring.
All cars these days have some form of top mounted assembly that you need a special tool to release it from the tank.
The fuel lines also require a fuel line release tool.
There would be a lock release tab on the electrical connector.
If you break a fuel line it will become a big job to repair, I've replaced many fuel lines, not a fun task.
Hope this helps.
Your local Holden dealer could for you.
I've been around Daewoo for many years, including when GM took over to offer warranty to existing new car owners.
I'm sure other dealers would have the many tools like we have.
Will the car cough to life if you spray some carb cleaner in the throttle body?
I had one years ago that would not start cold. Ambient temp was 20, coolant should have read 20, but read as 70. Replaced coolant sensor, and vroom vroom.
There are a few different fuel hose connectors, and all have there own way of removal.
They are all quick connects, easy to build cars th,at way.
Do you have anybody mechanically minded nearby?
Generally, the pump assembly lock rings are near impossible to remove without some damage.
It may be worth your while to find a Lanos at a wrecking yard and "experiment" with that, then you'll know what you need to do.
Would you be up for that?
There are a few lock rings that can be knocked around unlocked with a hammer and drift, have done a few like that. The tool does make it a lot easier.
Some quick connects can be released with a pair of pics etc.