I have not. where is it located? How do I test it?Have you checked your oil pressure sending unit? GM typical ties the fuel pump into this sending unit. In case of a serious accident the oil pressure drops to 0 when the engine stops, shutting down the fuel pump stopping the flow of fuel. If the sending unit goes bad, it can shut down the fuel pump too.
Moving the ignition switch to the RUN position would cause a short buzz from beneath the driver's seat of 1-2 sec. No buzz. Engine cranks fine, just no fire.I might be missing something hear but is the vehicle a no start? The ECM needs to see a crank or running input to energize the fuel pump. Just turning the key to the on position will not energize the fuel pump.
Incorrect.I might be missing something hear but is the vehicle a no start? The ECM needs to see a crank or running input to energize the fuel pump. Just turning the key to the on position will not energize the fuel pump.
I corrected my initial response concerning the initial KOEO 2 second prime in my response right before your post. Mitchel On Demand actually doesn't clarify initial KOEO priming. If you want to sling a little mud my way for a little misinformation fine but when I visit these DIY forums they are chalk full of mis-information & mis-guided diagnostics.Incorrect.
As you pass the RUN position and turn the lockswitch to START, the fuel pump has already been triggered to run to get the engine ready to start as soon as ignition and rotation start.
IF the engine does NOT start - or you don't go all the way to CRANK --- THEN the pump will time-out and shut down.
We must be careful to inform people who may not know any better, the actual facts.
TBH: I make a lot of mistakes too.... just sayin'............
Had to retrieve my floor jack from a forgetful friend... Got the rear end up on jack stands and cider blocks under tires. Relay working. Jumped relay plugs (lower right to upper left); no hum, no start when cranked. Can't get a meter on the plug at the relay without dropping tank, so...I understand that. I own an ‘04 without working gages. Lol.
I don’t believe I’ve EVER heard the fuel pump humming. On real cold winter days there’s a whining humming for a few seconds in initial start up that could be the fuel pump I guess.
I was wondering if the OP got his issue figured out. I would by start looking at fuses/relays.