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Ford f550,2001 Triton V10 with no spark and no fuel

Customer Question
pressure. At one point it...
Ford f550,2001 Triton V10 with no spark and no fuel pressure. At one point it wasnt starting at all, then two days later it started and died after idling for maybe 10 mins and would not start again. Cranks strong, all fuses are checked to be good.Harnesses have been checked too. We replaced the ignition crank box and tried to use a different functioning pcm.
What could the problem be? I'm thinking it is a loose wire somewhere that would make it to not have spark and no fuel pressure. If there is a diagram to follow which cable please let me know clearly.
Submitted: 1 year ago.Category: Ford
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Answered in 2 minutes by:
11/2/2016
Ford Mechanic: David Craig, Auto Mechanic replied 1 year ago
David Craig
David Craig, Auto Mechanic
Category: Ford
Satisfied Customers: 4,049
Experience: owner/mechanic at 3D Automotive
Verified

Hi Im David. are you getting a check engine light? i will pull a wiring print for you to set you on the right track

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Ford Mechanic: David Craig, Auto Mechanic replied 1 year ago

try the fule pump shutoff switch reset.

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Customer reply replied 1 year ago

no check engine light, i will try to follow the diagrams and will ask if i am confused

Ford Mechanic: David Craig, Auto Mechanic replied 1 year ago

did you try to reset the inertia switch?

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Customer reply replied 1 year ago

The button is down, tried it did not go down.

Ford Mechanic: David Craig, Auto Mechanic replied 1 year ago

ok

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Customer reply replied 1 year ago

I'm getting error on my scanner ,looks like not communicating ??

Ford Mechanic: David Craig, Auto Mechanic replied 1 year ago

ok, we will test the DLC connector in 20 minutes i havent forgot about you. had to go to a funeral and now gotta take the pooch for a walk

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Ford Mechanic: David Craig, Auto Mechanic replied 1 year ago

at the dlc check for 12vdc at pin 16. check for grounds at 4 and 5 and check for voltage a 7.

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Ford Mechanic: David Craig, Auto Mechanic replied 1 year ago

hello?????????

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Customer reply replied 1 year ago

I will check today and let you know.

Customer reply replied 1 year ago

pin #16 12 volts

pin 4&5 has ground

pin#7 around 6 volts

Ford Mechanic: David Craig, Auto Mechanic replied 1 year ago

ok, thats good

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Ford Mechanic: David Craig, Auto Mechanic replied 1 year ago

fuel pump running with key in on position?

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Customer reply replied 1 year ago

No; the fuel pump is not running at all also no spark

I tried start spray nothing .No spark.

Ford Mechanic: David Craig, Auto Mechanic replied 1 year ago

ok, lets jumper the fuel pump relay and see if the pump comes on

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Customer reply replied 1 year ago

How to do that?

Ford Mechanic: David Craig, Auto Mechanic replied 1 year ago

give me a sec. thanks

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Ford Mechanic: David Craig, Auto Mechanic replied 1 year ago

double check fuse 19 in the engine compartment its a 20 amp fuel pump relay maxi fuse

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Customer reply replied 1 year ago

The fuel port shredder valve was blocked,I replaced it I have fuel pressure and cleaned up all ground and connections My scanner communicate with DLC and still no spark **Reading RPM zero,Got a new crankshaft sensor install it NO spark.Check the connector to the crankshaft sensor Have voltage.No spark

Ford Mechanic: David Craig, Auto Mechanic replied 1 year ago

ok good..at least we have fuel pressure now. cool. now let find out why we have no spark....

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Ford Mechanic: David Craig, Auto Mechanic replied 1 year ago

need to check continuity from S130 to the central junction box fuse.

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Customer reply replied 1 year ago

How can I check the crankshaft sensor trigger timing gear? The tooth can be damage ?Can I see movement of the gear from hole where the Crankshaft Sensor is? how to check the gear movement and the teeth.

Reading RPM (0) when I crank the engine.

Ford Mechanic: David Craig, Auto Mechanic replied 1 year ago

you cant see the reluctor wheel nless you access the sensor, remove it and slowly rotate by hand and watch the wheel contact blades

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Customer reply replied 1 year ago

Do the wheel contact blades goes bad or damage?

Ford Mechanic: David Craig, Auto Mechanic replied 1 year ago

not normally, not unless its removed for a timing job. let me pull up a print of the crank sensor. lets see what we can check

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Customer reply replied 1 year ago

Can we look at parts schematic ?how the Crankshaft sensor Ring look like?

Ford Mechanic: David Craig, Auto Mechanic replied 1 year ago

let me get a pic

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Ford Mechanic: David Craig, Auto Mechanic replied 1 year ago

heres a description of how it works, im looking for the actual ring pic.....

The Crankshaft Position (CKP) sensor is a magnetic transducer mounted on the engine block adjacent to a pulse wheel located on the crankshaft. By
monitoring the crankshaft mounted pulse wheel, the CKP is the primary sensor for ignition information to the Powertrain Control Module (PCM). The
trigger wheel has a total of 35 teeth spaced 10 degrees apart with one empty space for a missing tooth. The 6.8L ten cylinder pulse wheel has 39 teeth
spaced 9 degrees apart and one 9 degree empty space for a missing tooth. By monitoring the trigger wheel, the CKP indicates crankshaft position and
speed information to the PCM. By monitoring the missing tooth, the CKP is also able to identify piston travel in order to synchronize the ignition
system and provide a way of tracking the angular position of the crankshaft relative to fixed reference.

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Customer reply replied 1 year ago

Thanks

I will check through the sensor hole to see if something is going on and will let you know.

Ford Mechanic: David Craig, Auto Mechanic replied 1 year ago

ok

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Ford Mechanic: David Craig, Auto Mechanic replied 1 year ago

any luck?

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Ford Mechanic: David Craig, Auto Mechanic replied 1 year ago

just checking in to see how its going

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