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Daniel Wilson
Daniel Wilson,
Category: Medium and Heavy Trucks
Satisfied Customers: 4971
Experience:  Owner at DJ Wilson
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I have a DD15 with a fault code ENG SPN003720 15 N 2ND CODE

Customer Question

I have a DD15 with a fault code ENG SPN003720 15 N 2ND CODE ENG HIGH 138s155 00N
JA: We'll do all we can to help. Tell me a bit more about what's going on so the Heavy Equipment Mechanic can help you best.
Customer: Pearl I was just speaking in regards ***** ***** truck Engine code faults. The truck is running ok, not hesitating, just changed mass flow sensor. The engine light is still on.
JA: Is there anything else important you think the Heavy Equipment Mechanic should know?
Customer: I hope that you got my message.
Submitted: 10 months ago.
Category: Medium and Heavy Trucks
Customer: replied 10 months ago.
Do you need my last 6 of vin?
Expert:  Daniel Wilson replied 10 months ago.

Hi my name is***** will be glad to help. Bare with me while I pull up the info for your codes.

Customer: replied 10 months ago.
Ok
Expert:  Daniel Wilson replied 10 months ago.

SPN 3720/FMI 15

This fault indicates that the DPF has reached the end of its service life and must be replaced. Replace DPF and perform Ash Accumulator reset using DDDL.

Customer: replied 10 months ago.
Thanks
Expert:  Daniel Wilson replied 10 months ago.

Click on this link for the Detroit publication as well. Troubleshooting

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