Simple test to find out if the pump has failed: remove the fuel filter and put the contact - if the fuel doesn't squirts out in force then you will know for sure that you need a new one.
2 things emediatly come to mind. forgive me but I have to ask, are you sure there is gas in the tank? turning a corner will draw fuel away from the pump if the tank is too low. If fuel is in the tank then your pump is more than likey dead. It may turn on and run but the diagphram is bad and there for not pumping. You can try an inline fuel pump to see if it runs with the aux pump.
I rmembered that the oil pressure switch must be working on this as well, or no pump, so if the pump is running I suspect the pressure switch is good, but I can't garantee it just yet.
The fuel gauges are sometimes in the pumps on newer models, I am not sure of the one you purchased, but it could also be giving you false readings.
I am glad your back on the road, this pumps are not a fun change, but the good new is you should not have to woryy about for quite a while. If your happy with my direction a vote of approval would sure be appreciated, and thanks for using Fix ya
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Yes I have 3/4 of a tank. First thing I looked at at the time. My guage should not be off that much. The pump was changed out 3 years ago. Going to look at the pressure it is putting out in the am. I was hoping it was not the pump as is a ***** to change. Will let you know. Thanks
Got it was the fuel pump. Looks as if the place that put in the last pump 3 years ago did not change the filter at the pump and it fell apart and bits got sucked into the pump. It was the original filter from 91. If you want things done right you have to do them your self. I swapped out the whole fuel unit. I think we r good for an other 457k. Thanks for your help
Thanks for your direction in getting my truck back on the road during these tough times.
I have GMC sonona and I have a problem with start, when is cold the truck turn on but 5 a 10 minute the truck turn off automatic and i already changed the fuel filter and I already testing the fuel pump and be okay, so i dont was the problem, somebody can tell me was problem, thanks
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