crank no start
I have a 1993 f150 with a 4.9. it cranks but will nit start. I changed the fuel pumps in both tanks, changed the plugs and wires, and changed the ecm. I can spray starter fluid in it and it will start for a couple sec .and then die. right now I am at a stand still. is there anything else I just try.
I had the same problem with my 1994 and the 4.9. Turns out it was a loose/corroded Fuel Relay switch under the hood located under a black plastic cover next to the air filter. Give it a try, it might work.