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AMEDEE
AMEDEE, FORD TECHNICIAN
Category: Ford
Satisfied Customers: 26081
Experience:  ASE CERTIFIED TECHNICIAN ADVANCED LEVEL SPECIALIST. Wisconsin certified emissions state inspector
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I was working on my spark plugs and my wrench handle hit my

Customer Question

i was working on my spark plugs and my wrench handle hit my relay power box which caused a spark, and soon after i foind that my 97 f150 did not have any headlights, no dash board, no radio, no power window, or can not start
JA: Is the power loss consistent, or does it fluctuate?
Customer: it is consistent
JA: Are you fixing your F150 yourself? What have you tried so far?
Customer: I have checked all fuses where under the hood and and steering wheel. but i found one blown fuse which is number 20 and replaced it.
JA: Anything else you want the mechanic to know before I connect you?
Customer: no
Submitted: 8 months ago.
Category: Ford
Expert:  AMEDEE replied 8 months ago.

Hello and welcome!

My name isCustomerand I can assist you with your question.

Expert:  AMEDEE replied 8 months ago.

I can help you locate or pinpoint the root cause. I do need a bit more information from you.

Does the check engine light come on with the key on for a bulb check?

Does the engine crank over and not start or does it not crank over at all?

What size engine do you have? May I get your VIN?

Thank you!

Customer: replied 8 months ago.
No te check engine light does not come on. The truck does not crank at all. The sizebof the engine is 4.6
Expert:  AMEDEE replied 8 months ago.

So the starter does not activate?

Do you know if the vehicle has RAP (remote antitheft personality)?

Automatic transmission?

Customer: replied 8 months ago.
No starter does not activate, no rap, and yes automatic transmission
Expert:  AMEDEE replied 8 months ago.

Ok, lets check fuse 21 in the junction box fuse relay panel for battery voltage with the key in the CRANK position.

If there is no power on this fuse with the key in the CRANK position, then we check the ignition switch and inputs to the ignition switch. It is possible there is no power going to the ignition switch.

Customer: replied 8 months ago.
Where is the inputs located to the ignition switch
Expert:  AMEDEE replied 8 months ago.

That would be the fuses in the power distribution box

Customer: replied 8 months ago.
there are more than one power box, one underneath the hood and one inside next to the steering wheel
Customer: replied 8 months ago.
i check the relay box, but the input to ignition is where underneath hood or next to steering wheel
Expert:  AMEDEE replied 8 months ago.

The power distribution box is located under the hood.

The junction block is located inside the vehicle.

Expert:  AMEDEE replied 8 months ago.

Fuse 20 and 21 in the Power distribution box powers up the ignition switch.

They are both 50 amp fuses. I would double check these first. Then check power in and out of the ignition switch.

Expert:  AMEDEE replied 8 months ago.

Here is a wiring diagram of the ignition switch.

Expert:  AMEDEE replied 8 months ago.

I am glad I can help!

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Expert:  AMEDEE replied 7 months ago.

Hello! It'sCustomerfrom just answer.

I am just checking in to see if you need any further assistance?

Let me know!