WARNING!!: ⚠️⚠️⚠️
Always use the proper tools and safety equipment to perform this job.
Failure to perform the job correctly can result in personal injury or vehicle damage.
Don't do this job if you think you don't have the experience or the equipment to do this job correctly. REMEMBER SAFETY FIRST!

Warning!!! ⚠️⚠️⚠️
This video is just a demonstration of the labor to do to perform this job, the results may vary.
Also, the damage found can be greater that expected and it can result in a massive engine failure.

This video contains advance technician information.

keyworks
freightliner kenworth peterbilt international volvo mack western star cascadia coronado t660 t680 t700 579 389 379 589 vnl vn
cummins isx cummins isx15 cummins n14 cummins m11 cummins isb cummins isb DD15 DD13 DD16 Series 60 caterpillar C15 3406 C13 OM 460 OM471 OM472 OM473 mercedes benz atros DD13 DD15 DD16 60 series class 8 truck tractor


Topics discussed:
fault number spn 1077 fmi 14
what is a fuel leak problem
ways to know where is a fuel leak
system diagnostic
how to use the DDDL software
how to repair this fault




symptoms of the fault are:
check engine light on
low power
hard to start in the mornings
prolonged cranking time
poor fuel economic




Tools need:
DDDL software



Parts needed
---



Shop talk:
the fault code spn 1077 fmi 14 refers to a small leak detected by the computer that could affect the engine performance. in most cases, this fault does not affect the engine performance at all when this first occurs, but, if this is not repaired in time this can lead some serious problems like engine not starting or very low engine power.


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