F250 7.3 L Engine shutdown.. help!

Submitted: Thursday, Jul 17, 2014 at 11:22
ThreadID: 108775 Views:2692 Replies:9 FollowUps:5
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Hi There,
We are currently in Darwin and just had our F250 towed back from Kakadu after the engine completely cut out whilst we were driving along the highway.The truck would start for 10 seconds and then stop again. Has anyone experienced anything similar? Any thoughts would be greatly appreciated.
Kind Regards
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Reply By: Batt's - Thursday, Jul 17, 2014 at 12:14

Thursday, Jul 17, 2014 at 12:14
If it's not a fuel filter I hope you have deep pockets if it's to do with injectors or pump keep your fingers crossed it's something minor.
AnswerID: 536183

Follow Up By: noggins - Thursday, Jul 17, 2014 at 12:23

Thursday, Jul 17, 2014 at 12:23
Seen something similar on a different vehicle.
It was the "code scanner " in the key.
Do you have another factory key with you ?

With the ''scanner'' it allows you to start the motor and run for a few seconds , then sends out a signal, if no response it shuts down the motor.

One of the main reasons you Must get a Coded Key and not just the metal copy.

FollowupID: 820268

Reply By: aimee - Thursday, Jul 17, 2014 at 13:03

Thursday, Jul 17, 2014 at 13:03
Hi Sue & Shaun,
Sounds to me like the "crank angle sensor" has failed. The starting for 10 seconds and then stopping is a tell tale sign. Every f truck should have a crank angle sensor in their glove box (just in case). It is located at the front of the motor just near the harmonic balancer pulley (not all that hard to change over if you can get one). The other thing that you can check, if you can find someone with an f truck, they may have a chip decoder and you can plug this into your coder plug, which is located under the dash, above your left leg. This will give you the code and you can maybe clear the problem.
AnswerID: 536184

Follow Up By: pop2jocem - Thursday, Jul 17, 2014 at 13:39

Thursday, Jul 17, 2014 at 13:39
I can certainly see how a crank angle sensor can bring the whole shooting match to an end, the computer has no idea where the pistons and valves are to fire the appropriate spark plugs and when to inject the fuel. What I can't understand is how the engine gets to start and run at all. Sounds like an intermittent fault maybe in the sensor or possibly the wiring harness or connection which gets disrupted by engine vibrations. Might be an idea to check the connector first.

FollowupID: 820273

Reply By: BunderDog - Thursday, Jul 17, 2014 at 13:36

Thursday, Jul 17, 2014 at 13:36
On an off chance try disconnecting the batteries for 10-15 mins to reset the computer
AnswerID: 536186

Reply By: Member - mechpete - Thursday, Jul 17, 2014 at 13:37

Thursday, Jul 17, 2014 at 13:37
the only problem we had with the F trucks was one had a camshaft position
sensor failure ,it caused it to cut out at times ,but you need a diagnostic tool
to check the system .
cheers mechpete
AnswerID: 536187

Reply By: John E - Thursday, Jul 17, 2014 at 22:10

Thursday, Jul 17, 2014 at 22:10
Hi Shaun,
Sounds very much like the timing sensor . Had the same problem. It cuts out the system totally . There was a ford recall on them early on . The original was a black coloured sensor , the replacement is grey .Fairly simple to change as long as you have 10mm socket. Cost of sensor is about $75.
AnswerID: 536219

Reply By: Motherhen - Thursday, Jul 17, 2014 at 23:15

Thursday, Jul 17, 2014 at 23:15
Hi Shaun

While not knowing the exact symptoms, a number of F250 owners have had the Cam Position Sensor fail. We purchased and carry a spare but have not needed it. I hope your problem is simple and you are back on the road soon.


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AnswerID: 536220

Reply By: sue and shaun - Thursday, Jul 17, 2014 at 23:21

Thursday, Jul 17, 2014 at 23:21
Thank you all for your replies,they are greatly appreciated .We are going to do the diagnostic check tomorrow with our micro tuner and hopefully it will be nothing to serious.We will keep you informed.
Best wishes and thank you
Happy Travels
Shaun and Sue
AnswerID: 536221

Follow Up By: Member - kyle46 - Saturday, Jul 19, 2014 at 17:54

Saturday, Jul 19, 2014 at 17:54
hope this was just a crank angle sensor. While your checking things I'd jack it up and check the front bearings and free wheeling hubs,lock them manual and make sure they engage. I discovered mine had failed at Innamincka last week and had get to new one's freighted out.
FollowupID: 820377

Reply By: Member - Richard L8 - Friday, Jul 18, 2014 at 13:13

Friday, Jul 18, 2014 at 13:13
My father had simular problems with his. Problem started as intermittent, It would drive fine not towing. Put a trailer on it, it would keep cutting out. He took it to Ford about 5 to 6 times & $3500 later problem still kept happening. They replaced crank sensor, injector harnesses, injector pressure switch & fuel pumps. Ford through there hands in the air & said it may cost approx 10 grand to get to the bottom of it as it is a process of elimination. So in the end Dad brought the Car down to Canberra to me as he could afford 10 grand more to fix it. I put my scanner on it & found it was leaning out before shut off. Pulled tank out & checked the fuel lines. Lines from tank to engine were clear. Checked fuel tank sender unit & found blockage. Dismantled fuel sender unit & found 2 flute filters in top of sender housing blocked with black grim like sand. Cleaned out flutes & refitted all ok now. Runs better than it has for last 50,000 ks so who knows how long its been blocking up for as it has had a slight hestitation for a couple of years which ford said was normal. Runs smooth as now. Checked with Ford parts & the micro cat doesn't even list the flute filters. Called 3 other ford dealers they had No idea they had the filters.
AnswerID: 536248

Follow Up By: Member - kyle46 - Saturday, Jul 19, 2014 at 17:44

Saturday, Jul 19, 2014 at 17:44
I had the pickup out of my fuel tank as I was told of these, but my tank didn't have them, the pickup foot then broke off,go up to Ford to order another and the tank sender unit matched to vin number was nothing like what I had. Ring up Qld F Series yeah we got them sold a dozen in last couple weeks.
FollowupID: 820373

Reply By: Member - Odog - Friday, Jul 18, 2014 at 19:59

Friday, Jul 18, 2014 at 19:59
G'day Sue n Shaun, was wondering where you two were at in your travels... Can't really be much help with the F truck problem, so won't go there. Just wanted to say hi, we ran into you both at a rest area down the road from locks well, you said we should call in there, what a spot.. Soon as I saw it, I thought gotta throw a line in there, by the time we walked down the 300 odd steeps, that gutter that looked like it was 20m off the beach, was like 200m out.. And the waves that looked 4ft high turned out to be about 4m high... Was quite funny.. Stunning spot.. Thought we may have past you on our way back across the nullabour , we were heading east. Guess there were a lot of F trucks around, but did see a bike on this one, tried the UHF , no reply... Hope you sort out your vehicle problems, and your both well. Was great meeting you both... Wish we were still on the road... Instead of work.. All the best. Owen n Sue
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AnswerID: 536271

Follow Up By: Member - sue and shaun - Wednesday, Jul 23, 2014 at 22:17

Wednesday, Jul 23, 2014 at 22:17
Hello Owen and Sue,
its so great to hear from you both.Sorry we didn't reply earlier but our registration expired the very next day of us posting on the forum and as we had no reception we were not able to renew our registration until yesterday.
As you know we had planned to go across the West and then we were going to head down the centre but decided to change course and head up the Centre of Oz to Darwin and then across to the West instead as we preferred to follow the sun.
We've been having an amazing time exploring this great country of ours and meeting some wonderful people like yourselves.We have spent the last 4 weeks in Darwin and are making our way into Kakadu and then across to the West....
Fortunately we were able to get the truck back on the road yesterday after having found out it was the cam angle Sensor that had failed.
The weather up here has been glorious with 30 degree days everyday but i guess you don't want to hear that:).
Best Wishes to you both and hopefully we might get to see you back on the road some time soon.
Happy Travels
Sue and Shaun
FollowupID: 820614

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