Fuel Gauge help needed

[srider]

Hi, new user so thanks in advance for reading and any help you can offer.

‘89 325is new to me.

fuel gauge is mostly stuck on empty all the time. If I persistently knock on the gauge it might move a little or not at all.

removed back seat and did ohm testing on both senders, one at around 20 with tank half-ish full, the other (passenger/fuel pump side) at zero.

I’m trying to figure out whether it’s a sender issue or a gauge/grounding issue before I spend any money or go further.

thanks

[82eye]

remove sender from the tank and flip it upside down while connected. if the gauge moves you know it works.

[srider]

82eye thanks for the reply. A couple follow up questions; which sender do I remove, drivers side or passenger side? If it flip it upside down and the gauge doesn't move, then it's a gauge issue correct? Thanks

[82eye]

passenger side is pump, driver's side is sender. if you flip the sender and nothing happens the sender has had it.

[dnguyen1963]

Search my threads. I posted a fix for this quite a few years back.