This truck......
After my lift pUmp debacle, I now have a new, or continuing old problem.

For the last couple years my truck wants to regen every 125 miles or less and it seems to be getting worse. If I'm pulling camper it will passive regen, but takes forever to do so. Saturday I visited daughters which involved 120 mile Hwy drive. Truck regened on the prior Wednesday and regened again at 100% full only 50 miles later. Got on the road at 85% full and hoped it would regen again, which at full it said it would, but never did(msg came on, but no regen). Few minutes later gave me a Exhaust Filter Overloaded, and a separate message to drive to clean filter. Later, it also showed a large orange screen with a wrench in the middle. Truck will barely do 85MPH empty. I have the % full screen turned on so I can see that. Finished the trip in this scenario.

I live in a smallish rural community (<30k ppl) and the Ford dealer service is terrible. There are a few independent alternatives, but I don't have 6 weeks to wait in line.

I suspect I have a sensor issue, but guessing and I don't want to guess. I don't have any kind of scanner and so I want to start there. I don't need to reprogram the thing, I just want to see what is happening vs. what should be happening. I also don't want to spend a lot of cash as that is tight, and this thing is going down the road as soon as this is resolved. I've had my diesel fix, and it was expensive and unnecessary now that the 7.3 is out.

Looking for scanner suggestions and a place to start looking.
Thanks.

 

I have a '12 and it was performing some short random regens and the root cause was a defective EGT sensor which was a known issue with '11-'12 trucks. Replaced the EGT sensors and truck has been regenning normal ever since with 261k miles on my truck.

Good luck...

 

It shouldn't be doing a regen every 125 miles. You said it has been doing this for years. Have you have it checked out during that time? If something is wrong, it most likely worse now that it's been a few years if nothing has been done about it.

 

Pulling the codes would be a good place to start. Harbor Freight has cheap code readers to get access to the CEL codes... after getting those, you can start looking online and here to see where to start...

https://www.harborfreight.com/automo...-scanners.html

They got a cheap one for $36 or there's a Zurich ZR4s for $58 that does a little more. I have a Zurich ZR8s but haven't used it in awhile... nice to have to pull codes off the vehicles with.

Here's a pic of the back of the box from mine...


I'm no mechanic... maybe someone else will chime in with a more experienced response...


Good luck man...

 

might do a search based upon your vin at the ford owner website,
I seem to recall there was a EGT sensor recall at one point.

Pretty sure It involved my 2013 and they put in new sensor in EGT1/4.

If you get a scanner that can read live data, scan all four sensors before startup , they all should read pretty much the same,

 

Genius!

 

So, a bit of advice on this one. IF you are going to replace the EGT sensors yourself, its most likely EGT12 that is faulty. this is the 2nd one back from the engine on the exhaust, and is the one that tells the computer after a regen starts, that its actually in regen, and if not working right, (not reading correctly), tells the computer to stop feeding the fuel.

Here is the good friend advice..... Those EGT sensors get badly corroded in the exhaust from all the heat cycles. BE VERY CAREFUL removing them, or you will twist the threaded nipple right off the exhaust, and will then require welding skills to put back on. the other problem is that a standard flare nut wrench cannot get enough bite to move these things. Many guys cut the sensor off, so that they can get a 6 point deep socket on the sensor. the problem is you are fully committed to the project at that point, and if you still cannot get the sensor out, you are really stuck. no sensors no start.

If you arent fully equipped to to this one, its one that I would pay the man to handle....

 

Start spraying them with PB Blaster

 

You are in Texas and unless you get your car inspected in a large city I would recommend investing the money you would throw at this problem and into deleting your emissions. If you PM me I can send you information.
As I read the problems associated with the DPF there is a plausible payback.

 

ultrasound clean or replace your map sensor


switch to full synthetic oil. Mineral and blend oils foam more and the foam mist gets sucked into you turbo via ccv


do a ccv delete or add an additional catch can

 

I bought one of these....

I have two repeats for:
P2479 EGT 12
P2031 EGT sensor 12
P246C Bnk 1
P205C <-- Once only

Thoughts?
Sounds like an EGT sensor replacement?

 

Here's the potential offender; it's pretty clean. Question is, do I attempt, or do I " pay the man to handle...."? Problem with the man is I get in line and wait. I watched the videos, saw the potential disaster with removing these. Apparently my penetrating oil grew legs, I'll get more...and I do have a torch.


Will someone tell me how to resize my pics? Thanks

 

I would start soaking it in penetrating oil awhile, then replace your map sensor with oem, I went cheap and had to pay a tow bill. Test drive with new map sensor and then gently put a wrench on that one and see if it moves.

My map sensor was sending faulty signal but was not out of range enough to set a code. Filled up dpf very fast.

 

EGT 12 was reading 2505°F, no bueno. Get one at Ford tomorrow.

To respond a few comments.

• I don't know when the short regens started, but it never threw codes and all seemed normal. It's my first diesel, so how do I know this is not right? My last "regen" took 11 HWY miles and that has been typical for a while(5th gear at 75). It does passive regen when towing, but you kinda gotta push it. At 65MPG with 3.31 gears and only 10k lbs trailer, it's not really working hard enough. No?
• Checked for recall info and I am out of coverage (I have a SYNC update available though)
• Sensor scan revealed all normal but EGT12
• I'm not ready to do away with this stuff..yet, I know a guy who's cousin has a friend that.....
• I run Shell T6 oil, no ccv or oil catch can mods, this thing is all stock.
• Couple of you mentioned MAP sensor. Where is it? I can check it out and U/S clean it...in what? (I think we use Simple Green)

I'm going to man up and swap EGT sensor out!

Guess I'm driving the '65 tomorrow....

 

Use this ! And only this to clean MAF Sensor:

If you need to replace, Only use OEM Ford, or you will be chasing your tail for a Fix.