1 Attachment(s)
Help Diagnosing Rough Idle
I have a rough idle that rears its ugly head primarily when the weather gets cold. During the summer it is fine, but as soon as winter sets in the idle gets so rough it shakes the whole truck. Ran a few scans to get balance rates and they look fine when in gear, but the balance rates don't read when in park the idle gets so rough so no idea what the balance rates are when the idle is acting up. What I can see is that the fuel and injection rates start dropping to 0 during the rough idle but the pressure remains relatively stable. Any ideas what might be the cause? I have attached the logs, any help in pin pointing the cause would be greatly appreciated.