P30 Fuel Pump Service Life?

Sometimes, not always, a failing in tank pump will start to make noise (beyond the normal hum) prior to failure. On cars it's generally easier to hear inside because of the proximity to the cabin, but, on gas fueled motor homes often you can often hear it if you stand at the rear of the motor home (near the fuel tank) with the engine running at idle. If you hear a growling, whining noise (increasing over time) coming from the fuel tank area, chances are your days to fuel pump failure are numbered. On the other hand I've had them fail without warning too. Go figure!

Chum lee