brian87

i have a 96 f150 inline 6 5 speed manual .. i stopped at a gas station filled up went to leave and my truck just did. it turns over but wont start. got it diagnosed and they said fuel pump i changed the fuel pump and it still wont start.. it does however start and idle when i use starting fluid.. as soon as u try to give it gas it bogs down and dies.. when i turn on the ignition key the fuel pump neither old or new makes any noise. my front fuel pump was already bad the fuel gage works for both tanks . what could this be.. i really need help bad this truck is my families only trans and our jobs depend on this i cant find anyone that knows what this could be..please help i do have spark.

skc72

You didn't mention I'f you checked the fuel filter?

transmaster

What you need to do is do a pressure test on the fuel rails. There is a test point where a pressure gauge is attached. A fuel pressure gauge is available from Action Automotive for $25 it has a fitting that screws into the test point on Ford Fuel rails. This is a invaluable tool to have in the tool box. You do need to get the fuel pump issue you have fixed. I agree skc72 replace the fuel filter if you have not done so.

Summit Racing has a nifty little fuel pressure gauge that mounts permanently on the test point so you can check the fuel pressure anytime you want.

brian87

actually it turned out to be the switch in the cab to go from front to back tanks.. it was melted inside.. now i have to find out why it shorted out .. thank you both for your replies i appreciate the feed back