Join Date: Feb 2008
When you turn the key to the "on" position.....before you try to start it, can you hear the fuel pump run for a second or two? It should.
Hook up the pressure tester, turn the key on, then off....and read it. If your are hooked up correctly and the gauge is working, then your fuel pump is not energizing. If not...check the fuel pump relay in the fuse box that's located under the hood. Swap it with the horn relay ( assuming the horn works) and try again.
If it still doesnt work, check the wiring to the pump. If Ok...it's the fuel pump. Mine is in the tank on my 97....not sure about yours.
2007 5.7 Hemi, Ltd. QD II -
1997 ZJ, 4,0 select trac, Up country, track lok.