Can the fuel pump be changed without removing the fuel tank?

 

No.
But curious as to why your question is only for 08-10 year models ?

 

Not unless your tank has a zipper.

 

Some vehicles have an access panel in the floor, but HHR does not.

 

You must jack up the car , support it on jack stands , remove the fuel tank, not fun if there is still fuel in the tank! The tank will drop easily if you support the rear axle to compress the suspension, you can remove the exhaust hangers and push it aside.

 

Ill 30/86 to gascan what remains maybe fit in 5gl since i been runing it testing to empty oops soory over heating fuel pump sorry not sorry haha

 

You don’t seem to like any of our answers, claiming rudeness, then you delete the threads. See ya!