Medium and Heavy Trucks
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Hi my name is***** will be glad to help. If you are referring to the ISX the most common issues are EGR coolers and EGR system problems, turbo and actuator problems. Injectors average life is 500K where they should be replaced. Let me know if you need more help.
Do you have the complete model info?
Look for white smoke running and excelleration, white ash deposits in the exhaust from coolant burning, any current fault codes and running issues.
An EGR cooler will smoke after warm up and continue to smoke on acceleration. Look in the coolant reservior for oil or sludge and for any signs of coolant in the crankcase oil just for insurance. I am off for the night but we can post back and forth as needed
I would get the fault codes it has logged to know what circuit has the problems. It is likely DPF aftertreatment system problems and possible EGR. The codes will tell us what circuits have the problems
I can not look dealer information up by VIN but they will be able to do that for you. You will need to get the fault codes read with a scan tool plugged in if the truck does not have the display on the dash to see codes.
The answer is in the fault codes. They mean there are faults logged. If you can get the fault codes I can look up what they are.
All have their problems with the strict emissions laws now. Click this link for some FYI
Hi, Did you still need help with this or did you get this resolved?
The differentials are the same but the 46 has heavier axles. Super 40s use the same ring and pinion gears as a 46K Lb rear. The difference is the axle gears and axles are smaller diameter with less splines. Everything else in the center section is the same. The axle housing axle tubes aren't as heavy in the Super 40 versus the 46K lb housing.