CUMMINS-3714 serious Cummins ›

Engine Protection Torque Derate - Condition Exists

The CUMMINS-3714 (Cummins) diesel fault code means: Engine Protection Torque Derate - Condition Exists. This is a serious severity code.

Unverified. We could not confirm this code's definition against freely available manufacturer documentation, so treat the meaning, severity and fix guidance on this page as unconfirmed. Check it against the manufacturer's service information for your exact model and serial range before acting on it. This page is kept out of search engines for that reason, and we are working through this family manual by manual.

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Keep driving?
Limited driving only
DIY difficulty
intermediate
Estimated cost
Varies entirely by the root cause -- 3714 itself costs nothing to fix and clears once the active fault behind the derate is repaired
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What Are the Symptoms of CUMMINS-3714?

  • Noticeable power loss (engine torque derate in effect)
  • Possible reduced road-speed limit
  • Amber warning lamp on the dash
  • One or more OTHER active fault codes present at the same time
  • Higher fuel consumption while derated

What Causes CUMMINS-3714? (Most Likely First)

  • An active engine-protection fault is forcing the derate -- 3714 is the derate flag itself, not the root cause Very Likely
  • Aftertreatment fault behind it (DEF level/quality, SCR efficiency, NOx sensor, or DPF soot overload) Likely
  • Low oil pressure or high coolant temperature engine-protection trigger Possible
  • Sensor or wiring fault on a monitored engine circuit Possible

Can I Still Drive with CUMMINS-3714?

Limited driving only. CUMMINS-3714 is rated serious severity. Keep trips short and get it diagnosed soon rather than waiting for symptoms to worsen.

Common Fixes by Vehicle

What techs usually find when diagnosing CUMMINS-3714 on specific platforms — tap a platform for the fix and the exact part:

2013-2018 Ram 2500/3500 6.7L Cummins Advanced DIY

FC 3714 (multiple cylinder misfire) on the Cummins usually means injector issues. Pull INSITE and check injector flow balance -- one or more cylinders will show a large deviation. Replace the failing injector; OEM Cummins injectors run $400-$600 each plus $50 return-line kit. Always replace in opposing pairs (1+6, 2+5, 3+4) if two are close to the limit. Never reuse injector hold-down bolts.

Labor: 3-5 hours per injector

Frequently Asked Questions

What is Cummins fault code 3714?

Cummins fault code 3714 (SPN 1569, FMI 31) is 'Engine Protection Torque Derate - Condition Exists.' It is an information-only code: the ECM has reduced engine power (and may limit road speed) to protect the engine because another critical fault is active. You do not repair 3714 directly -- fix the underlying active fault and 3714 goes inactive.

Can I drive with Cummins fault code 3714?

The truck will run but in a reduced-power derate, and it may also be speed-limited. You can usually limp it to a shop, but the derate will not clear until the root-cause fault is repaired. Don't ignore it -- the derate exists because the engine is protecting itself.

How do I clear Cummins fault 3714?

You don't clear it directly. Read all active fault codes with INSITE, repair the underlying fault(s) that triggered engine protection (often a DEF/SCR or other aftertreatment issue), and once the ECM confirms those are inactive, fault 3714 changes to inactive on its own.

Mechanics Guide Step-by-step diagnosis

How Do You Diagnose CUMMINS-3714?

  1. Connect INSITE (or an equivalent tool) and read ALL active fault codes. 3714 is a companion to another active fault, not a standalone problem.

  2. Identify and repair the underlying active fault(s) that triggered engine protection -- aftertreatment/DEF and SCR faults are the most common triggers.

  3. Check DEF level and quality (should be 32.5% urea on a refractometer) and scan the SCR/NOx system if an aftertreatment fault is present.

  4. If no aftertreatment fault is stored, verify engine oil pressure and coolant temperature are within spec.

  5. After the root fault is repaired and confirmed inactive, fault 3714 clears on its own. Clear codes and road-test to confirm the derate is gone.

Sources 1

This page is built from documented references. Verify against your own service info before repair work.

  • SAE J1939-73Application Layer: Diagnostics (defines the SPN/FMI fault-identifier framework)

Which Vehicles Commonly Get CUMMINS-3714?

  • Peterbilt 579, 567 with Cummins ISX/X15
  • Kenworth T680, T880 with Cummins X15
  • Freightliner Cascadia with Cummins ISX15
  • Ram 2500/3500 with 6.7L Cummins
  • Freightliner M2 106 with Cummins ISL9/L9

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More Cummins codes → Diesel home All diesel codes Heavy-duty Guides

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