Looking for some advice...

First, do you think it is OK to run engine (troubleshooting only) with P2146 code (runs at about 200 rpm and shakes bad). I'm thinking it must be wiring, because I'm sure those front 3 cylinders are dead. Will they dump fuel in if they are not working electrically? Dodge says $271 overnight for new valve cover gasket w/ harness. I need to get my CPL so Cummins can check for me.

Second, where would you send stock injectors for testing / rebuild locally? I have 240,000 km on stock ones. Where is the nearest F1 shop for us Albertans?

Hopefully the rain / snow holds up long enough for me to check my grounds and wiring harnesses. I hope it's something simple / cheap, 'cause I can't aford all new injectors now.

Thanks for any help you can provide

 

my experience is that 1 bad injector will mess up the set of 3, if you have one injector that failed its easy to find, either with a heat temp gun on the manifold or with a multimeter on each of the injectors, cant remember the spec (ohms) but if one is bad, it will be way different than the others...
Highly doubt its the valvecover gasket harness that is bad, the code indicated a set of injectors that failed, typically its only one injector failed, but if you ohm the injectors you will know for sure

 

the 2146 code is generally caused by a chafing or cracking problem in the harness, where it goes through the bulkhead, under the valve cover.

I have seen trucks run like a bucket of junk for a long time, with that exact code, until they could get to a repair facility. No injector damage resulted.

Just my useless experience

 

If you want you F1 to look @ the injectors, need to send them to Plano Texas. But first need to get ahold of a dealer of his. Think there is a shop in Calgary/Edmonton that can test them, image somebody will chime in with the name. GCI I think is the name.

 

GCL is in calgary.

2 doors down from my shop.

 

I have a gasket/harness if you want to try it to troubleshoot?

 

Thanks guys. The truck won't stay running long enough to check temps. I limped it about 15 km with the code, running rough and low power. Now, It is so bad I don't know if it will start. If it does, I will do the cyl performance test and possibly injector cutout with the autoenginuity scanner. FWIW, all the grounds that I could easily check appear tight with no corrosion.

dodgediesel, thanks for the offer, but Fernie Chrysler can get me the harness overnight for $217. I have a good relationship with the Cummins dealer in Sparwood, so I will see what he can get me with my CPL today.

1-5-3-6-2-4, How much $ / time to test them? After I get it running, I will likely pull them or take the truck in, if it's not an overnight thing. Then at least I'll know where I stand.

Any more suggestions are welcome. I just need a dry evening to check this out. These monsoons can stop any time now...

 

No problem Big D. My 07 did the same thing to me. Driving home from Edmonton to Red Deer and holy man!!! Had to pull over. Same code. I shut the truck off and re started it and limped her home. It turned out to be #3 so I changed #3 injector out myself. I also changed the valve cover gasket just to make sure all was good. I would check the injectors yourself. Check the resistance of each one with an multimeter. If they are above 1 ohm, they are toast. I hope that helps and you get back up and running soon....

 

I just had to replace #2 injector in a buddys truck for the exact same thing. The injector would still ohm out as being good though, but would shut cylinders 1,2, and three down. Had to clear trouble codes, unhook injector #1, run it for a bit and see if it would shut all three down. Would run on five for a few seconds, then shut the group down. Reset codes, hooked #1 back up and unhooked #2, started and it would run fine on five cylinders. Reset coded, hooked #2 back up and unhooked #3, would run on five cylinders for a few seconds, then shut the group down.
Changed out #2 injector and the truck runs fine. Only thing I can figure is there is a short circut whenever the injector tried to fire and the computer would shut the group down to protect itself. Dang injector showed no difference with an ohm meter. Had me a bit boggled for a while.

 

My local Cummins dealer (Sparwood,BC) can get me the gasket/harness for $146 (better than the $271 from Fernie Chrysler).

If the rain / snow stops, I can get at it.

Thanks for the help.

 

Just randomly came across this thread but, I heard the common rail injectors are droping because people arent using the correct fuel filters?? Only fleetguard and donaldson filters meet the cummins specs of 5 microns. The normal wix etc are only 10 microns. Just curious if you knew that or if you used just regulaur filters from the normal parts suppliers?

 

I run Fleetgaurd for all filters on my truck. I'm thinking that my injectors are *probably* OK, I think it is the harness. Even so, if an injector is bad, I have over 240,000 km on them, with no additional filtration other than stock, so that's not bad life... If I get new injectors, I will likely add 2 micron filtration along with some sort of upgraded lift pump.

This truck was used for work for the last 4 years, so it racked up the miles, but now I have a company truck, so it will have an easy life from here on. Hopefully I don't have to spend too much on it...been great until now!

 

I've heard the injectors only have a 125000 mile service life. Don't know how true that is, but i'd say your due if that is the case. Gcl tested my 6 injectors for like 300 bucks i think, and put new o rings on all of them for me, which is worth about 150 bucks at cummins i believe.

 

So, it turns out to be #2 injector. All others meter at 0.6 ohms, #2 is 13 ohms. The valve cover harness checks OK, continuity through from pins to nuts.

Can anyone tell me where I can get injectors cheaper than $650 + $240 core (same at Cummins AND Chrysler)?

If I sent them to F1, could he repair the solenoid as well as rebuild the nozzles? How much would that cost?

I understand that I should replace all 6, but I can't pay $4000 right now.

Are there any "local" places to get good injectors for a decent price? I figure I might as well upgrade to a bit higher power (mostly to get more mileage).

Thanks guys. Sorry it's so long / many questions.

 

Try search for snoel123 (scott) he has a shop in st paul, I believe he told me they were 400 each.

I've done 2 different trucks and only put in the injector as needed, both are courior trucks and both are driven daily, I dont see a problem doing this, fix it as it breaks, electrical are electrical parts just because it is new does not mean ant wont fail quickly