Rusty fuel tank cause exterior fuel pump whining, any other concern beyond pump?

[roguetoaster]

Fuel filters do a great job, until they get clogged, and then the media can tear, allowing debris forward. However, if the car runs well you are probably fine.

You can add a second filter in the engine bay area, depending on your E30 config.

Also remember, a whiny pump isn't necessarily going to die anytime soon, and you can clean them out if you think it has junk inside.

I do second the new fuel hard lines if you can do so. Further, be sure to get material to rebuild your evaporative lines from the tank to the expansion tank near the fuel filler while you replace your tank. The fuel filler neck/hose may also be sensible to replace.

[IS300E30]

I would run the same injectors along with fuel system cleaner for a while and then have your injectors sent out for cleaning/flow matching. Also, if your steel lines are externally rusted, it might be a good time to run new ones - they are likely rusty on both sides now. The other thing to consider at this juncture is whether it makes sense to you to upgrade to a single in-tank pump. I think there is a write-up on here somewhere or just search it. A pump submerged in fuel cools better and runs more quietly due the sound being muffled by the fuel.

Thank you, no rust externally anywhere on the car, so I feel safe on that front.

Is there a reason you believe I need to be concerned about my injectors? Wouldn't the fuel filter catch and filter anything prior to it getting to the injectors?

[packratbimmer]

I would run the same injectors along with fuel system cleaner for a while and then have your injectors sent out for cleaning/flow matching. Also, if your steel lines are externally rusted, it might be a good time to run new ones - they are likely rusty on both sides now. The other thing to consider at this juncture is whether it makes sense to you to upgrade to a single in-tank pump. I think there is a write-up on here somewhere or just search it. A pump submerged in fuel cools better and runs more quietly due the sound being muffled by the fuel.

[IS300E30]

The third exterior fuel pumping that I have installed have just started the horrible buzzing/whining. I know my fuel tank must be rusty inside. So I am finally going to change my fuel tank for a new one, and put yet another new fuel filter and new fuel pump in.

The question that I have, can a rusty fuel tank ruin anything else other than the fuel filter and fuel pump? Anything else I should be concerned about that could have gotten ruin by the rusty fuel tank, for example, my newly rebuilt fuel injectors or anything else for that matter could have been harmed?