2004 GMC Yukon won't start if less than 1/4 tank of gas

Put some gas in it before you ruin the fuel pump. That is step #1.
Next, try running a heat gun or hair dryer over the fuel lines from one end to the other, if you suspect the fuel lines are frozen.
Hopefully that will be enough to get it going.

It is not necessarily the flow of gas that is important. You need at least 40 pounds of pressure for the injectors to operate correctly.

My girlfriend has a 2004 Alero and she just had the same problem less than a year ago. It turned out to be the fuel pump. This can only be replaced by a shop since you have to remove the gas tank to get to it.

If the engine cranks easily and doesn't even sound like its trying then you probably have the same problem. Sorry, but its not going to be a cheap fix. You can replace it yourself, but unless you really want to deal with dropping the gas tank, I recommend you take it in.

You may have a parasitic drain on the electical system , do you know what that is ? Watch this video !
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Yeah what's you saying is right, and GM is having a big problem with Fuel Pump on such model, I Already saw a 2 Year Cobalt with a Dead Fuel Pump.. ! Best thing is Keep your tank more than the Quarter, Buy a Dealer Fuel Pump not a Jobber one, be sure the strainer is clean in the tank and check if there's any dirt in your Fuel tank ! Check too if there's any Recall about that on your Vehicle !

i have an 03 yukon and i just replaced the fuel pump and it ran for 2 hours then it just died on the highway. it turns over but will not start. whats wrong with it???

might have to turn it over for quite a while for the fuel pump to prime itself .

hi, the banging on the tank is a typical fuel pump scenario , but to last for years is not very likely , i think it needs to be diagnosed to see what's missing when it wont start .

have your evaporative emission control system check.sound like you have purge valve solenoid not working or vent valve control solenoid.have it scan.to see which component not working..reason your gas tank expanding. your fuel vapor building up pressure.your purge valve and vent valve open allowing gas vapor from charcoil canister. to be burn in the intake manifold to be burn in combustion chamber.

I had the same problem. I had a few different mechanics tell me that the fuel pump is starting to go out when it does that. The fuel pump is located in the fuel tank, and the gasoline keeps the pump cool and lubricated. When the fuel tank is less than a 1/4 full, the pump is not submerged anymore, and can have trouble sending gas to the engine. My emergency fix was to get underneath the car on the driver's side and bang on the gas tank about three times. It will start up, and will run great unless you turn your engine off. But eventually you're going to need a new fuel pump. Once I replaced it, the problem went away.