Here's what happens- fuel pump stops...motor stops.
The fuel pumps are cooled by fuel in the tank. Best practice is to always run the tank level above 1/4 ( more cooling fuel) that is pretty easy for us as we tend to watch our fuel and know to fill up- esp when most RV generator fuel pick ups are plumbed at about 1/3 full.
( so that you don;t run the tank to E while running the genny in the boonies)
when a fuel pump is on the way out it is probable that fuel pressure will drop- this will lead to a check engine light.( autozone- free scan)
The code will be "lean condition, BOTH cylinder banks".
Fuel pressure is easily checked with a $30 harbor freight gauge set screwed on to a fitting on the top of the motor near the intake.
what the fix is...the tank needs to be drained and dropped
then the fuel pump is replaced- that part takes minutes.
I had to do this on my 2001 GMC Sierra at 148000 miles- on a pick up it is easier to lift the bed than drop the tank. I did it by myself in an afternoon. ( pump was $140)
The notice is not yet a recall but more of a 'courtesy' to let you know that GM is ready to cover the fix should it happen.
I'd stick it in a folder in the glove box and go camping.
If this were a pressing need then a recall would be ordered- and it may.
a "check engine light" and resulting lean condition would almost certainly fall under the Federally mandated Emissions Warranty- which is separate and wider reaching than your vehicle warranty
mike
