2005 6.0 stalling when cold. - Ford Powerstroke Diesel Forum
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post #1 of 6 Old 12-03-2019, 02:12 PM Thread Starter
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2005 6.0 stalling when cold.

My 2005 6.0 excursion is stalling when cold. This was an occasional problem that has gotten more frequent.

Once coolant gets all the way warm it doesn't do it. The truck stalled 6 times today leaving my neighborhood. I normally start it and let it idle for 15minutes while I get ready for work. Today when i came outside it had stalled just idling.

I suspected torque converter but it does it in tow haul. Maybe its a restriction caused by a bad filter or transmission t stat? It stalling at idle this morning may rule this out.

I am getting a cam position sensor code, but that may be from all the restarting.

I don't think the harness is chafed or it would continue to do it when warm. It never does it once coolant reaches 190. I plan to check it this weekend and replace the cam position sensor.

I have torque and monitor the truck regularly. Is there any specific pids to log? Once it stalls torque resets so that could make it hard to log.

Could a cam position sensor cause this? It used to only happen in reverse but now it happens in forward. It doesn't always completely die. Sometimes it will die for a second and the dash lights come on but the motor will come back to idle. After a second it will build rpm again.

Thanks, I am hoping this is an easy fix. I am in florida so cold is relative. 35 this morning.
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post #2 of 6 Old 12-03-2019, 03:58 PM
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"Once it stalls torque resets so that could make it hard to log"

What do you mean, Torque resets? -- long as there is power to the ODB, Torque should show readings
when the engine dies, readouts should just show zero or whatever the PCM is outputting
unless you are losing electrical power

In my defense, I was unsupervised
.
2006 F250 Lariat FX4 cclb
Torque Pro and OBDLink MX bluetooth monitor
General note:
For all those wanting a premium silicone sealer Kubota 70000-73764 is the best your gonna find. This is a hybrid gray silicone that uses solvent rather than acid to start the curing reaction, this makes it safe for aluminum and and any surface that involves coolant.
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post #3 of 6 Old 12-03-2019, 05:03 PM Thread Starter
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The port must lose power. It has to reconnect.
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post #4 of 6 Old 12-03-2019, 05:25 PM
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Likely a hint to the stalling problem then
G8orFord likes this.

In my defense, I was unsupervised
.
2006 F250 Lariat FX4 cclb
Torque Pro and OBDLink MX bluetooth monitor
General note:
For all those wanting a premium silicone sealer Kubota 70000-73764 is the best your gonna find. This is a hybrid gray silicone that uses solvent rather than acid to start the curing reaction, this makes it safe for aluminum and and any surface that involves coolant.
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post #5 of 6 Old 12-04-2019, 10:40 AM Thread Starter
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It could also be the pcm loses power. This morning i let the truck warm up to 170 before pulling out of my driveway and it ran fine.

I am not saying its not a wiring issue but I need to know what is being done differently from a program standpoint during warmup. I would imagine whatever is turned on during warm up could be the problem. Do glow plugs stay on during warmup?

I did replace the ficm a few years ago. Trans temp was 108.
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post #6 of 6 Old 12-04-2019, 06:30 PM
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Yeah, the glow plugs cycle a few time as needed after startup

Cam sensors are replaced a lot of times when they are in fact not bad at all
as long as they read Ohms, usually are good
the harness leading to the cam sensor is in a harsh environment from heat

Not sure at what temp, but the EGR system comes online shortly after startup
even if it is deleted, the harness is still live -- so may be a possibility

In my defense, I was unsupervised
.
2006 F250 Lariat FX4 cclb
Torque Pro and OBDLink MX bluetooth monitor
General note:
For all those wanting a premium silicone sealer Kubota 70000-73764 is the best your gonna find. This is a hybrid gray silicone that uses solvent rather than acid to start the curing reaction, this makes it safe for aluminum and and any surface that involves coolant.
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