No spark?

URSULOROBLES

MEMBER
1996 FORD F-150
5.0L
V8
2WD
AUTOMATIC
180,000 MILES

When I crank the engine, it will not start. Added fuel, won't start and checked for spark, no spark at number one cylinder.
I looked for trouble codes, PO 320 and PO 401. I noticed that the check engine light does not come on when key is on and checked crankshaft p. Sensor for voltage. It is located on the side of crankshaft pulley with 2 wires. With key on, neither wire has voltage. Tested them with volt meter on ohm tester. Can you give me direction?

5 Replies

KASEKENNY

MECHANIC
18,907 POSTS

Hi,

I attached the P0320 diag. This is clearly causing the no spark so you will need to run through what you see with this.

Let me know what you find and we can go from there.

Thank you for using 2CarPros.

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Wednesday, August 14th, 2019 AT 4:28 PM

URSULOROBLES

MEMBER
47 POSTS

Can you clarify: J10 (spout) refers to what component? Thanks in advance.

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Wednesday, August 14th, 2019 AT 9:29 PM

KASEKENNY

MECHANIC
18,907 POSTS

Yes. The J10 and J7 are ports on a special tool called a break out box. It is a tool that makes it easy to test circuits. SPOUT stands for spark output. I attached a description of the ignition system that gives more detail.

What this specific test is doing is seeing if there is voltage between PCM and ICM. You can basically just disconnect the SPOUT connector and run the same test. I included a wiring diagram that lays this out a little better.

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