Help! Not sure what to do anymore to fix this thing...
#13
09-17-2012 | 12:33 PM
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Diesel Fan
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Holy cow man. This truck sounds like an electrical nightmare, any idea what the heck happened to it before you got it?
There has to be some faulty wiring harness' on this thing.
The P2199 should be an easy fix. There is two intake air temp sensors, and one of them is faulty, throwing the code. Maybe this will point to a defective harness even??? Let the truck sit overnight, go out and turn the key to the on position (truck off). Monitor the sensors with AE, they should be really close to ambient temperature, if one is way off, you found which one is bad.
The P2614 and the P2617... both of these codes are typically thrown when the truck is cranked a ton and not started, but they're thrown falsely. I've seen these codes both before and even seen random start/run issues with these trucks in rare cases where the crank sensor tone ring is cracked. So it's still attached to the crank but keeps missing once in a while and will shut down FICM SYNC.
The PCM is obviously seeing weak batteries, but it sounds like the truck IS actually draining your batteries as you go here? These trucks run TERRIBLE with weak batteries, so honestly the stalling is almost not suprising. If you are able to drive it at all, I would keep a watchful on on FICM SYNC as you're driving.
What is ICP actual and ICP desired as you're driving and when it's dying? Capturing this data as it's dying out on you may be crucial to finding what is wrong here. Is it smoking a bunch as this is happening? Does the truck have to sit a while and cool off a bit before it starts again? I still can't help but wonder if there is a high pressure oil leak somewhere yet, albeit a very small one.
Here's a really good read that I think would benefit you some: http://www.fordtechservice.dealercon...FICM_Guide.pdf It's basically the FICM operations and how it fires injectors and how it gets info to fire injectors. I think if you read through this and get a good understanding of what the sensors are doing it will at least help in having a better idea of where to look when it starts acting up and what symptoms lead to others etc. Read through it and let me know what you think. I've read it a dozen times and I feel like I learn something new every time I read it again.
This is a good brain teaser for sure...
There has to be some faulty wiring harness' on this thing.
The P2199 should be an easy fix. There is two intake air temp sensors, and one of them is faulty, throwing the code. Maybe this will point to a defective harness even??? Let the truck sit overnight, go out and turn the key to the on position (truck off). Monitor the sensors with AE, they should be really close to ambient temperature, if one is way off, you found which one is bad.
The P2614 and the P2617... both of these codes are typically thrown when the truck is cranked a ton and not started, but they're thrown falsely. I've seen these codes both before and even seen random start/run issues with these trucks in rare cases where the crank sensor tone ring is cracked. So it's still attached to the crank but keeps missing once in a while and will shut down FICM SYNC.
The PCM is obviously seeing weak batteries, but it sounds like the truck IS actually draining your batteries as you go here? These trucks run TERRIBLE with weak batteries, so honestly the stalling is almost not suprising. If you are able to drive it at all, I would keep a watchful on on FICM SYNC as you're driving.
What is ICP actual and ICP desired as you're driving and when it's dying? Capturing this data as it's dying out on you may be crucial to finding what is wrong here. Is it smoking a bunch as this is happening? Does the truck have to sit a while and cool off a bit before it starts again? I still can't help but wonder if there is a high pressure oil leak somewhere yet, albeit a very small one.
Here's a really good read that I think would benefit you some: http://www.fordtechservice.dealercon...FICM_Guide.pdf It's basically the FICM operations and how it fires injectors and how it gets info to fire injectors. I think if you read through this and get a good understanding of what the sensors are doing it will at least help in having a better idea of where to look when it starts acting up and what symptoms lead to others etc. Read through it and let me know what you think. I've read it a dozen times and I feel like I learn something new every time I read it again.
This is a good brain teaser for sure...
FICM sync has been normal while driving, no smoke while idling or driving.
ICP actual & desired are w/i 5 of eachother at all times - initially (before the injectors & pump) it would have to sit and cool off a bit (20 mins) and then it took about 20 minutes of boosting before it would restart. THIS time it restarted in about 5 minutes and I drove it straight home.
I'll check the intake air sensors this afternoon.
#14
09-17-2012 | 12:47 PM
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Joined: Oct 2007
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The PCM shuts off when the batteries fall below 9V's, as I've learned. So yes, it very well could be. FICM SYNC should just be a YES or NO, and basically that's telling you it's getting all the appropriate sensor inputs.
What does ICP go to when you go wide open?
The more we talk about it, the more it sounds like something is just draining your batteries down like crazy (or the alternator isn't charging) and it's causing the truck to die. You've replaced nearly everything.
What does ICP go to when you go wide open?
The more we talk about it, the more it sounds like something is just draining your batteries down like crazy (or the alternator isn't charging) and it's causing the truck to die. You've replaced nearly everything.
#15
09-17-2012 | 02:23 PM
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Diesel Fan
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The PCM shuts off when the batteries fall below 9V's, as I've learned. So yes, it very well could be. FICM SYNC should just be a YES or NO, and basically that's telling you it's getting all the appropriate sensor inputs.
What does ICP go to when you go wide open?
The more we talk about it, the more it sounds like something is just draining your batteries down like crazy (or the alternator isn't charging) and it's causing the truck to die. You've replaced nearly everything.
What does ICP go to when you go wide open?
The more we talk about it, the more it sounds like something is just draining your batteries down like crazy (or the alternator isn't charging) and it's causing the truck to die. You've replaced nearly everything.
Definitely going to get my hands on some good CAT batteries.
FICM sync is yes, and once in a while it goes red and shows '1' on AE. ???
#16
09-17-2012 | 02:45 PM
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Joined: Oct 2007
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I wouldn't go changing the batteries too quick, there's only like 2 or 3 battery manufacturers in all of the USA, so most of the batteries are the same and just re-labled.
I would however be suspect of that alternator... I've seen it a few times where guys replace it and it ends up being a bad one right off the shelf again.
Your story reminded me of a buddy Mike's issues, read here and let me know what you think:
Alternator or.......? - PowerStrokeArmy
I would however be suspect of that alternator... I've seen it a few times where guys replace it and it ends up being a bad one right off the shelf again.
Your story reminded me of a buddy Mike's issues, read here and let me know what you think:
Alternator or.......? - PowerStrokeArmy
#17
09-17-2012 | 04:48 PM
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Diesel Fan
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it does sound similar - I'm going to check the alternator out in a few days (busy with work).
I checked the air intake sensors, #2 is def off - by about 14 degrees.
I can get batteries for nothing, so it's an easy way to see if the current ones are weak
Will keep you posted!
Thanks again....
I checked the air intake sensors, #2 is def off - by about 14 degrees.
I can get batteries for nothing, so it's an easy way to see if the current ones are weak
Will keep you posted!
Thanks again....
#19
09-18-2012 | 10:04 AM
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Diesel Fan
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and by the way, mdub, you've been extremely helpful, it's really appreciated!
#20
09-18-2012 | 10:38 AM
BOMBARDIER
Joined: Oct 2007
Posts: 8,208
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PCM could be a possibility. With all the FICM's I've had my hands on and everything I've learned about them... anything is possible, but I will say I agree with your assessment. I don't see the FICM as being the issue here. It would have no bearing on some of the other things you're seeing.
