Help with engine, no crank!

[Nathaniel]

I have a 2003 with 4.6, it turns over but doesn't start. I want to check fuses but have no idea where the fuse box is on veh! Please help! I hope it's not my fuel pump, but want to check fuses first. I searched all inside veh and don't see panel for fuses. Any help is appreciated, my veh has never done this before.
Thank you.

 

[BRIANGEE]

Sit in the passenger seat and look at your right foot. Fuse box is right there behind the trim - just pull off the small cover panel to reveal it.

 

[BRIANGEE]

Do some searching here and you'll find a lot on the fuel pump and relay issues if you're worried about that. First few freebies I would check (after you check the fuses) would be turn key on (engine off) and listen for fuel prime and also go back to the back hatch and press the inertia switch reset a couple of times just in case. In case you don't know where that is it's on the driver side panel in the back rear. Mine has a little twist latch door thingy revealing a large red button.

 

[1955moose]

Nathaniel, on top of what the others mentioned, one of the easiest things to do for fuel delivery, is to pull off the large rubber hose that attaches to the throttle body under hood, get a can of starting fluid from auto zone or equivalent store. Open up butterfly window on throttle, give it a good spray, about two seconds worth, and if it starts, then dies, you know your problems fuel, not spark, or something with your engine. Try that and report your findings.

Sent from my N9131 using Tapatalk

 

[Nathaniel]

Ok found fuse box but can't get panel door off. It's like they made this damn thing child-proof LOL. I pushed the fuel switch in rear and nothing. Where would I hear the fuel Prime at to check for it to see if the fuel pump is working?

 

[Nathaniel]

Okay update got the fuse box cover off now I need to know which fuse is the one or the ones that is associated with the fuel pump or the fuel relays so I know which fuse to look for I really don't want to take the whole fuse box off to check the relay so please help thank you

 

[Nathaniel]

Just to let y'all know my truck is stuck at a gas station and I only have a limited amount of tools with me so time is of the essence thank you

 

[Bedrck47]

If you can't get to the fuse box Then go to the drivers side rear and get to the shut off switch

You can check for voltage at that switch But you need to be fast in checking for voltage
Put your meter on one of the wires for the switch and watch the meter while someone turns the key You should see 12 volts for just a few seconds unless the engine starts.

If the engine does not start the 12 volts will drop off. You need to do this to both sides of the switch to make sure the switch is good.

Your problem could be either a bad fuel pump or a bad fuse box
But checking for voltage at the shut of switch will give us a better idea where the problem may be

How many miles on the expy?

 

[Nathaniel]

This is just an observation or question why in the hell did they put the fuse box where it is? This is the most stupidest place they could ever put a fuse box you have to be a damn contortionist just to look in the mother LOL

 

[Nathaniel]

And my truck has 173000 miles on it
And I'm by myself so I have no one to help me check stuff

 

[Bedrck47]

Do you have a volt meter with you or a test light

 

[stamp11127]

Because it is built Ford Tough.....

I don't have access to the diagrams but checkout this link:

https://justgivemethedamnmanual.com/ford/2003-ford-f-150-owners-manual/

The expys are based on the F150 platform. Road side emergency starts on @ page 178. Fuse box layouts follow from there. See fuse 10.

 

[Nathaniel]

No voltmeter or test light with me
But there is a target right down the street for me so I can probably get one if I need one oh and there's also a Harbor Freight so I might get one from there

 

[Bedrck47]

To get to the fuse box You may have to remove the kick panel ass that will give you some more room to work in

 

[stamp11127]

You may want to locate a local auto parts store also....

You can get 20-25% off coupins for HF right now since you may be dropping the fuel tank.

And the way Murphys Law works the tank is probably full, isn't it?

 

[Nathaniel]

Thank God the fuel tank is not full it's only at a little less than a quarter about to walk to Harbor Freight now see if they sell fuses well hopefully the voltmeter won't be that expensive don't got that much cash on me

 

[Bedrck47]

See if you can get a paper clip when you are at HF Will explain in my next post

 

[Nathaniel]

Paperclip? oooookay... And I did get starting fluid just in case. About to take this walk now to Harbor Freight

 

[Nathaniel]

I just need to get regular DC voltmeter correct?

 

[Bedrck47]

After you check the fuses and they are good

Look at the two pics. You will see a finger pointing to a green wire in the first pic
In the second pic you will see a yellow line that connects the green wire to a red wire

using a paper clip make a jumper and install it from the green wire to the red wire

It appears that there are two red wires but only one is a solid red color That is the red wire

What this does is bypass the contacts for the fuel pump