2015 2500 has been in regen for two years.

[Jstein1226]

I bought this truck used. Within a month of buying it, it went into regen mode but didn’t complete the regen. I took it to the dealership I bought it at and they told me I needed to spend $6k to get a new filter. I opted to get a second opinion. The second shop said it was my sensors and replaced them. two months later it happens again. This has now happened 3 times, last time was 2.5 years ago. It has been showing its in regen mode for the past two years. I have spent nearly $10k to try and fix this with no luck. Anyone know anything that could help me?

 

[AH64ID]

Any codes?

@Brutal_HO another one needs moved.

 

[tchur1]

I bought this truck used. Within a month of buying it, it went into regen mode but didn’t complete the regen. I took it to the dealership I bought it at and they told me I needed to spend $6k to get a new filter. I opted to get a second opinion. The second shop said it was my sensors and replaced them. two months later it happens again. This has now happened 3 times, last time was 2.5 years ago. It has been showing its in regen mode for the past two years. I have spent nearly $10k to try and fix this with no luck. Anyone know anything that could help me?

When you say the truck has been in regen for the past 2 years do you mean its going into regens frequently or that its quite literally been in regen mode for the last 2 years without stopping?

 

[Jstein1226]

When you say the truck has been in regen for the past 2 years do you mean its going into regens frequently or that its quite literally been in regen mode for the last 2 years without stopping?

The dash has shown regen mode for two straight years. It has not come out of regen mode.

 

[Jstein1226]

Any codes?

@Brutal_HO another one needs moved.

the previous 3 times it was o2 sensor codes. ”up stream and down stream” is what they said.

 

[tchur1]

The dash has shown regen mode for two straight years. It has not come out of regen mode.

Thats crazy - i've never heard of a truck just staying in regen for years at a time. Do you know the specific codes? It would be helpful if you have the specifics codes to point towards a diagnosis. O2 sensors can mean a lot of things

 

[Jstein1226]

Thats crazy - i've never heard of a truck just staying in regen for years at a time. Do you know the specific codes? It would be helpful if you have the specifics codes to point towards a diagnosis. O2 sensors can mean a lot of things

I will get them checked tomorrow and respond.

 

[Jstein1226]

Any codes?

@Brutal_HO another one needs moved.

P0562
p2706
p203f
p242f
p2459
p0871

 

[Jstein1226]

Thats crazy - i've never heard of a truck just staying in regen for years at a time. Do you know the specific codes? It would be helpful if you have the specifics codes to point towards a diagnosis. O2 sensors can mean a lot of things

I posted the codes.

 

[Brutal_HO]

Are you making oil?

IOW, check your oil level often. Might also want to get an Oil Analysis ASAP.

OTOH, I can't imagine the engine lasting through 2.5 years of actual constant regen if the fuel/oil ratio is too high.

If the DPF is full and it's tripped excess regen, I don't think it can actually do an active regen.

Just a quick google search on codes:

P0562 - PCM low voltage
p2706 - trans shift solenoid fault
p203f - low DEF
p242f - DPF full
p2459 - excess regen
p0871 - trans OD pressure switch

Is the truck deleted or tuned?

 

[H3LZSN1P3R]

Sounds like a few compounded issues. Likely the DPF is clogged but you may have some low voltage issues causing the other issues

 

[Enve46]

Sounds like a few compounded issues. Likely the DPF is clogged but you may have some low voltage issues causing the other issues

This. I would start with the easiest, cheapest and get the batteries tested. Change if necessary. Is there any chance this was once deleted/tuned?

 

[Jstein1226]

This. I would start with the easiest, cheapest and get the batteries tested. Change if necessary. Is there any chance this was once deleted/tuned?

Not to my knowledge. There is a parasite electrical leak that just started where it drains my battery overnight.

 

[Jstein1226]

Are you making oil?

IOW, check your oil level often. Might also want to get an Oil Analysis ASAP.

OTOH, I can't imagine the engine lasting through 2.5 years of actual constant regen if the fuel/oil ratio is too high.

If the DPF is full and it's tripped excess regen, I don't think it can actually do an active regen.

Just a quick google search on codes:



Is the truck deleted or tuned?

I didn’t know about

Are you making oil?

IOW, check your oil level often. Might also want to get an Oil Analysis ASAP.

OTOH, I can't imagine the engine lasting through 2.5 years of actual constant regen if the fuel/oil ratio is too high.

If the DPF is full and it's tripped excess regen, I don't think it can actually do an active regen.

Just a quick google search on codes:



Is the truck deleted or tuned?

I didn’t know about the oil analysis. I will look into this.

 

[Enve46]

Not to my knowledge. There is a parasite electrical leak that just started where it drains my battery overnight.

Man sounds frustrating. Multiple issues piling up. I know what I would do but that’s something that some people can’t/wont do which I understand but I’d eliminate the emission issues completely. I wouldn’t even know where to advise you on the electrical draw other than shut the truck down, every door closed and light off for 10 mins and use an ammeter to see draw. I forget what it should be under but it should be minimal. I think it should be around 1am or less. If that’s the case most likely battery issue.

 

[Jstein1226]

Man sounds frustrating. Multiple issues piling up. I know what I would do but that’s something that some people can’t/wont do which I understand but I’d eliminate the emission issues completely. I wouldn’t even know where to advise you on the electrical draw other than shut the truck down, every door closed and light off for 10 mins and use an ammeter to see draw. I forget what it should be under but it should be minimal. I think it should be around 1am or less. If that’s the case most likely battery issue.

That is the end plan but I fear there is more to it. I shut everything off and sat in it for a while. There is a high pitch low volume whine coming from behind/under the touch screen.

 

[Enve46]

That is the end plan but I fear there is more to it. I shut everything off and sat in it for a while. There is a high pitch low volume whine coming from behind/under the touch screen.

Uconnect screens are notorious for not shutting down, could need a new one. Try unplugging it and see if draw is there.

 

[tchur1]

As others have stated, this sounds like multiple issues stacking up.

I would try to isolate the power issues first as outlined above, likely due to uconnect not shutting down correctly.

Im still struggling with this idea that the truck has been in permanent regen mode for 2+ years. Do you have anyway to confirm that the truck is actually in regen 24/7 vs an electrical issue that is just showing the regen mode constantly?

 

[Jstein1226]

As others have stated, this sounds like multiple issues stacking up.

I would try to isolate the power issues first as outlined above, likely due to uconnect not shutting down correctly.

Im still struggling with this idea that the truck has been in permanent regen mode for 2+ years. Do you have anyway to confirm that the truck is actually in regen 24/7 vs an electrical issue that is just showing the regen mode constantly?

I don’t know how to get that information. It’s blowing black smoke. When I have the exhaust brake on, it will clear the regen under deceleration but the second I touch the gas peddle it the regen comes back.

 

[flan]

It sounds like you need to take it somewhere honestly. I believe you are in over your head. If you give a location maybe someone can point you to a reputable shop.