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Maxxforce 10 injector
2011 Monaco knight
17000 miles
Maxxforce 10
Allison 3000
Tracking down a vibration issue I was having, today I did a test ride with Dion International out of San Diego. They connected the laptop to monitor real time what the engine was doing while driving (we did this with the transmission too but all was good and the engine was suspected anyway). What showed was a couple ‘active’ codes that otherwise came up as ‘previously active’. They were:
Cylinder #4 balance max limit exceeded
and ICP sensor.
They plan at this point is to do a CPA test that they say will let them know for sure where the problem is (i.e. cylinder 4 injector vs 3 or 5 etc)
The shudder only happens under load at roughly less than 1500 rpms. Anything electrical I believe would be intermittent at any time and not just under load. In this way I agree that an injector could be the issue. The interesting part is that at 1300 miles in 2011 (brand new) the original owner had this exact code and injector 4 replaced as per Internationals record keeping. I know that its been 8-9 years but its only been ~ 15000 miles and while I know that coincidences happen this makes me wonder...
Has anyone had this code? Anyone fixed it themselves? Thoughts appreciated.
I’m really considering changing #4 injector myself as I don’t want to pay $165 per hr for a fix. I’ve been reading about removing the oil rail (and replacing the o-rings). I would replace the ice sensor while I’m there and inspect the wiring harness while in there. Is there anything to be afraid of? Easy job? Or hand it to the dealership for the cap test to make sure the right part is being replaced?
Thanks in advance!
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Linear Mode
