CAT 3126 No Start
Due to circumstances beyond my control, I have not started my coach with Cat 3126 for about six months. Went to get it ready for the summer today, but the engine won't start. Batteries are good, start...
Forum Discussion
To troubleshoot the problem you have, its best if you have the diagnostic software to view the IAP (Injector Actuation Pressure).
The most common not start I see on this engine is high pressure oil leaking by the injector o-rings. This causes low IAP.
To check the o-rings. I remove the valve cover and crank the engine. If I see oil leaking out between the injector body and cylinder head, the o-ring on that injector has failed. There is some oil in the area around the injector all of the time so, you would be looking for one that had an excessive amount of oil forming around it.
The most common not start I see on this engine is high pressure oil leaking by the injector o-rings. This causes low IAP.
To check the o-rings. I remove the valve cover and crank the engine. If I see oil leaking out between the injector body and cylinder head, the o-ring on that injector has failed. There is some oil in the area around the injector all of the time so, you would be looking for one that had an excessive amount of oil forming around it.
