EB stuck on

[TRAMPLINEMAN]

Sorry that didn't work. Will continue to follow this though

No worries, that would have been awesome if it would have worked.

 

[TRAMPLINEMAN]

I found the problem...

 

[EZeis]

I found the problem...
View attachment 127215

If you don't know, you can replace that yourself and use AlfaOBD to calibrate the new one. Provided the turbo is ok and free.

Earl

 

[Cummins12V98]

Or buy the one from City Diesel for around $875 and just slap it in with no programming needed.

 

[TRAMPLINEMAN]

If you don't know, you can replace that yourself and use AlfaOBD to calibrate the new one. Provided the turbo is ok and free.

Earl

I do know, this one is under warranty and does not require calibration. The turbo is fine, so at least I’ve got that going for me!!

 

[Ltngdrvr]

I found the problem...
View attachment 127215

So, components on the board were shorting out against the gear cover?
Hmm...
You'd think that would be insulated so it wouldn't be possible.
You'd also think that would post a code.

 

[EZeis]

Or buy the one from City Diesel for around $875 and just slap it in with no programming needed.

Depends which is cheaper and/or more reliable. I wouldn't let calibration sway my choice.


Earl

 

[TRAMPLINEMAN]

Or buy the one from City Diesel for around $875 and just slap it in with no programming needed.

This is a City Diesel actuator.

 

[EZeis]

So, components on the board were shorting out against the gear cover?
Hmm...
You'd think that would be insulated so it wouldn't be possible.
You'd also think that would post a code.

I would say the components blew on the board and arced/blew smoke and slag on the cover.

Earl

 

[TRAMPLINEMAN]

So, components on the board were shorting out against the gear cover?
Hmm...
You'd think that would be insulated so it wouldn't be possible.
You'd also think that would post a code.

Looking at it up close, I don’t think it touched the cover. I think that’s just from the flash over from something shorting out.
I hooked a Mac Scout to the truck today and there were no codes. I agree, there should have been some code.

 

[p-Bar]

Tramplineman What are you going to do with that circuit board? My brother would like to analyze it . He is an electrical design engineer, I'll pay for shipping . I told him of all the failures. Was there any insulation between bottom of board and the aluminum ?

 

[TRAMPLINEMAN]

Tramplineman What are you going to do with that circuit board? My brother would like to analyze it . He is an electrical design engineer, I'll pay for shipping . I told him of all the failures. Was there any insulation between bottom of board and the aluminum ?

I’ll probably have to return it to City Diesel as it’s still under warranty. If they don’t want it back, I will ship it to you. I’m not sure if there is insulation between the bottom of the board and the aluminum half it’s attached to, but there is no insulation between the top side of the board and the aluminum half it get married to.

 

[Cummins12V98]

This is a City Diesel actuator.

interesting!

Is it still under their warranty?

 

[TRAMPLINEMAN]

interesting!

Is it still under their warranty?

Yes, they have a two year warranty and I believe I installed this last fall.

 

[Ltngdrvr]

I would say the components blew on the board and arced/blew smoke and slag on the cover.

Earl

Well, it does at least look like it arced to the cover.

 

[kthaxton]

Looks like some stripped gear teeth too. Might have been some sort of binding to cause it to "blow".

 

[SnoKing]

Looks like some stripped gear teeth too. Might have been some sort of binding to cause it to "blow".

Maybe metal fragments from the stripped gear teeth shorted out the circuit card?

 

[TRAMPLINEMAN]

Looks like some stripped gear teeth too. Might have been some sort of binding to cause it to "blow".

We kinda thought that too, maybe the binding of the gears caused overheating of the board? When it was on the truck you couldn’t tell anything was wrong by looking at it. As soon as I broke the seal between the two halves you could immediately smell that an electrical fire had occurred.

 

[kthaxton]

Maybe metal fragments from the stripped gear teeth shorted out the circuit card?

Possibly...but I can't help but think whatever load/binding that caused those teeth to strip, likely overloaded the transister....or whatever burned up.

 

[TRAMPLINEMAN]

Maybe metal fragments from the stripped gear teeth shorted out the circuit card?

This is very possible.

 

[kthaxton]

I suppose the opposite scenario is possible too....something in the electronics failed in the "on" position, forcing the gears to push against the limit of the actuator, causing additional electrical burn-up. Just thinking out loud.