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I have a 2017 Freightliner Cascadia with DD15. Got a

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I have a 2017...

I have a 2017 Freightliner Cascadia with DD15. Got a Diagnostic code SPN 3251 FMI 0. it got red and yellow engine light on it. Please advise

Mechanic's Assistant: Is the check engine light blinking or flashing, or is it solid? When did you first notice it?

It started blinking and message was engine stop in process

Mechanic's Assistant: What's the make/model of your 2017 freightliner?

Cascadia

Submitted: 1 year ago.Category: Medium and Heavy Trucks
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Answered in 16 minutes by:
10/30/2021
Technician: Daniel Wilson,
 replied 1 year ago
Daniel Wilson
Category: Medium and Heavy Trucks
Satisfied Customers: 15,097
Experience: Owner at DJ Wilson
Verified

Hi, My name is***** can follow up as needed on here. Professionals are not employees of the site but users of the site and help on here as time allows depending on their daily schedule. I am not available for phone calls. If the site flags for a call, you can either disregard it or your call request will be posted for other professionals who may be logged into the site at the time to accept your request offer if they choose to do so.Sorry to hear you're having these troubles with this truck.

SPN 3251/FMI 0 - EPA07

This diagnostic is typically Diesel Particulate Filter (DPF) Pressure Out of Range Very High. This fault code sets when the DPF outlet pressure is greater than 35 kPa (5 psi) for more than 10 seconds.

SPN 3251/FMI 0

Description Diesel Particulate Filter (DPF) Pressure Out of Range Very High Monitored Parameter Exhaust Pressure Typical Enabling Conditions Always On Monitor Sequence None Execution Frequency Continuous When Enabling Conditions Met Typical Duration 2 Seconds Dash Lamps MIL, CEL, SEL Engine Reaction Derate 25% Verification Run Engine Between 1200 to 1800 rpm With a Load Less Than 10%

Click on this link below for the proper troubleshooting steps that need to be taken in order to isolate the cause of this fault.

https://www.dropbox.com/s/ew28gbfuihsb7fc/3251spn.pdf?dl=0

I hope you find this information helpful. Reply back with the results of these checks if any further help is needed. It's a pleasure to help anyway I can.

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