my truck won't start

[tmoney333]

I just bought this 2002 suburban 5.3L 2wd, and about two days into my ownership the suburban wouldn't start, i tried to jump it and still no help i was getting desperate so i put a couple of gallons in it and then it started right up, and now i have noticed that everytime the guage goes below 1/4 of a tank the truck won't start, so i have been keeping it full for the most part. The weird thing is that if i start driving the truck and the guage goes below 1/4 of a tank it will still drive until the low fuel light comes on then i go fill it up. I have no idea why it is doing this, i have been reading the forums and some other poeple were having similar problems, they have been atributing this to the fuel pump. But i used own a F150 and when the fuel pump would go out on it, it would studder then die, not just fail to start. Please help

[mmmikkke]

I just bought this 2002 suburban 5.3L 2wd, and about two days into my ownership the suburban wouldn't start, i tried to jump it and still no help i was getting desperate so i put a couple of gallons in it and then it started right up, and now i have noticed that everytime the guage goes below 1/4 of a tank the truck won't start, so i have been keeping it full for the most part. The weird thing is that if i start driving the truck and the guage goes below 1/4 of a tank it will still drive until the low fuel light comes on then i go fill it up. I have no idea why it is doing this, i have been reading the forums and some other poeple were having similar problems, they have been atributing this to the fuel pump. But i used own a F150 and when the fuel pump would go out on it, it would studder then die, not just fail to start. Please help

 

<{POST_SNAPBACK}>

 

 

The GM fuel pumps seem to be sensitive to the gas level dropping below the level of the fuel pump. More than a few posters in the past have contended that the fuel pumps get hot when the fuel level drops below 1/4 tank. So maybe it's getting hot and it won't start pumping when it's hot. But if it's already pumping, it'll keep pumping because the fuel moving through the pump keeps it cool.

 

Sounds like you should start planning to replace it.

 

If you do it yourself, you'll have to decide whether you'll do it by dropping the tank, or raising the bed.