Thread:

2005 Cummings Diesel Help

This is for an old buddy of mine goes by "Smokey Bear" he has a water truck that he uses on call for the fire dept. 68 year old vet.
He pulled out the gas engine from the water truck and put in a 2005 6.7 Cummings Turbo Diesel engine. After running around for the day he is getting lights on the dash and running issues.
Now he is does not understand much and is very confused and troubled that he just put 30k into his truck and cant get it to run. Cal Pac in rialto said they can not help him.
He claims that the engine is a grey market engine from England?????????? And that the computor is looking for sensors that he does not have??????????? I dont know where he got the info but he needs help. Do we have anyone here that knows about this engines computor and what he needs to do?
He gave me these numbers but I have no idea what they mean.
ISB 6.7 21643323
CPL#8530
SC#9340
If anyone knows of a shop that does custom work on these engines please let me know.

First off, it's a Cummins, not a Cummings.

Secondly, why would he spend that kind of money to put a fully electronic high emissions controlled engine into a water truck??? I know it's hindsight, but a 24 valve 5.9 would have been a much better choice. The new ones are incredibly sensitive, and do read all kinds of sensors. I'm kind of surprised that the thing even runs without all the widgets hooked up to it.


Good luck.

Originally Posted by jordy

First off, it's a Cummins, not a Cummings.

Secondly, why would he spend that kind of money to put a fully electronic high emissions controlled engine into a water truck??? I know it's hindsight, but a 24 valve 5.9 would have been a much better choice. The new ones are incredibly sensitive, and do read all kinds of sensors. I'm kind of surprised that the thing even runs without all the widgets hooked up to it.


Good luck.

Jordy,

Thanks for the spell check.
I agree the money he dumped into the truck was wrong, last year he put in the gas engine that was another 25k plus. Stupid aside let me know if we can help the poor guy out and get the truck going. He means well.
Thanks.

Originally Posted by Rocknpalms

Jordy,

Thanks for the spell check.
I agree the money he dumped into the truck was wrong, last year he put in the gas engine that was another 25k plus. Stupid aside let me know if we can help the poor guy out and get the truck going. He means well.
Thanks.

Really not a spell check as you typed "Cummings" in a few different spots, but just trying to get on the same page in the event you end up somewhere else, you're not looking for "Cummings" help, as subliminally it tends to detract from the information that you're seeking.

$25K for a gas engine??? You know, I work for a major diesel engine supplier, can you send him my way next time he wants to put an engine in a water truck???

As I previously mentioned, going the route he did on a repower is going to be problematic as the newer diesels look for many more sensor readings to monitor all of the different parameters required to insure the compliance with the new tiers of emission laws.

Not sure that they make some kind of a base ECM for that engine that would allow it to essentially run off-highway and close loop many of the parameters that are looked at for on highway operation.

Grey market with Euro s/n's are just going to complicate things as most dealers will view him as someone that tried to skirt the dealer network to save a buck, which typically ends up costing an extra $10/per or more, as he's finding out.

One option would be finding out all the missing sensors and having them installed to meet parameters, the other would be trying to trick the ECM into thinking they're there. I don't know if anyone is doing that for the 6.7 yet as it's such a new platform.

Sign up and pay $35.00??? and start asking questions. Or, you can sign up, not pay and just read for free.

Personally, I think the guy screwed himself big time!!!

Jim


http://turbodieselregistry.com/

Jordy,

Thanks for additional information. If you think of a shop that may help let me know.

Originally Posted by TITTIES AND BEER

pm stvkeith,he knows his shiit

PM sent

Here are a few ideas coming to mind please let me know if we are going in the right direction.
I am going to call Banks in the morning to see if they have an aftermarket module that will trick the stock computer into running correctly.

If not we are thinking of purchasing an American computer and removing the computer that the engine came with.

Or seeing if a programable off road/race computer and dyno time will fix this.
If anyone knows of products, part numbers or more information that will help.



Also I was wondering how much he would have spent for a 6.7 engine that was not from England. He says he paid around $6,500 for this one.

The 30k spent for the swap was for new trans, new rear end with the appropriate gear ratios, engine mount fabrication, radiator, intercooler installation of all parts............. the list goes on.

Originally Posted by Rocknpalms

The 30k spent for the swap was for new trans, new rear end with the appropriate gear ratios, engine mount fabrication, radiator, intercooler installation of all parts............. the list goes on.

Apparently someone saw your buddy coming.

He'd be better off at this point to pull that engine out and put a mechanical pumped 5.9 that he could pick up out of a wrecked 3/4 pickup and be done with it. Pop the old one out and sell it. If nothing else, talk to the guys that sold it to them and sell it back to them for $0.75 on the dollar and cut his losses.

All the suggestions you've made are just throwing more good money after bad.

That's my suggestion.

Had a talk with my buddy tonight he was saying that the truck ran good for a few hundred miles when the engine was first put in. I was unaware that it ran good for a while. With that information I was thinking something may have come loose like a boost/vacuume line or whatever.
Well I did find a connector loose to a sensor. It was not snapped completely and was loose. Now I am not sure if it is a mass air flow sensor or a intake air temp sensor but it is located at the 90 just as it enters the intake manifold. I would assume that an air temp sensor would have very little correction to the injector pulse width and that a mass air flow sensor would have a great deal of correction.
After correctly installing the connector we went for a 20 minute drive and it ran great and the idle was back to normal. Lets hope this was the issue and not that it starts running poor after a few hundred miles again.
Can you guys tell me what sensor it might have been?
Thanks for all your help so far.