no start!! 03 6.0L

[fontad03]

hey i posted a thread yesterday that said i had the same problems as a previous post, so today i tried changing the fuel filters, before buying a new pump. I have changes the filters many time before but never had a problem. Now it wont start at all. I was thinking, maybe its the pump forsure then? i turned the key on the the cap and filter out of the secondary filter housing, and it took 3 on/off cycles to fill the tiny housing 3/4 full. I thought there would be alot more pressure then that? New fuel pump is coming tommorow though. i am hoping it will solve the problem.

[Marty]

Well you changed some stuff and obviously have been cranking on the batteries.

I'd suggest using a multimeter and determining how many volts you're getting with and without load.

If you're dipping below 10 volts... the truck just won't start. To add to that, the terminals need to have a great connection - make sure they're clean!

#1 cause for no starts in my experience

[03f250stroke]

Originally Posted by Maintain

#1 cause for no starts in my experience

I second that..my 03 had this prob. and I also had another prob. that wouldnt let me start the truck..the PCM was burnt out.

[WEWILLE]

I agree with maintain, but you should have about 50-60 psi of fuel pressure with a mechanical gauge.