P0336 Code: Dodge Durango (2021-2024) - Causes, Symptoms & Fixes

P0336 Diagnostic Guide for 2021-2024 Dodge Durango (Crankshaft Position Sensor A Range/Performance)

Note on data limitations

• Real NHTSA data for this exact model/year/issue combination shows no owner complaints and no recalls in the database. No recalls found in NHTSA database.
• This guide uses the standard meaning of OBD-II P0336 (Crankshaft Position Sensor A Range/Performance) plus Dodge Durango-specific considerations and common failure modes from automotive practice. Actual results can vary by engine option (e.g., 3.6L Pentastar, 5.7L Hemi) and model year, so use this as a diagnostic framework rather than a guaranteed sequence.

CODE MEANING AND SEVERITY

• Code: P0336
• Description: Crankshaft Position Sensor A Range/Performance (CKP Sensor A Range/Performance)
• Typical meaning: The crankshaft position sensor’s signal is outside expected range or is not operating within specified performance parameters. The PCM detects a waveform that is out of spec, intermittent, or completely missing; this can prevent the engine from starting or cause stalling, misfires, or rough running.
• Severity in a Durango: Moderate to high. It can cause no-start conditions, rough idle, stalling, or drivability problems. If the sensor or its wiring is intermittently failing, drivability may be erratic until the fault is repaired.

COMMON CAUSES ON DODGE DURANGO

• Faulty crankshaft position sensor (CKP sensor) itself
• Damaged, corroded, or loose wiring/connectors to the CKP sensor
• Poor or damaged 5V reference or ground circuit to the CKP sensor
• Faulty or contaminated CKP sensor due to oil leaks or debris
• Damaged reluctor ring or misalignment of the crank trigger timing
• Timing chain/belt issues or timing-related mechanical wear that affects the CKP signal
• PCM (engine ECU) anomalies or software glitches (less common)
• Battery voltage issues or poor ground conditioning, causing erratic sensor readings

SYMPTOMS YOU MIGHT SEE

• Engine may fail to start or stall after starting
• Intermittent no-start or intermittent stalling
• Rough idle or misfires
• Check Engine Light (malfunction indicator light) with code P0336 stored
• Possible reduced engine power or poor acceleration
• In some cases, other CKP-related codes (P0335, P0337, P0338, or P0339) may accompany P0336

DIAGNOSTIC STEPS

Note: Perform in a systematic way. If you don’t have the tools (oscilloscope, scan tool with live CKP waveform view, etc.), you’ll likely need to seek professional help.

A. Confirm the code and gather data

• Use a reputable OBD-II scan tool to confirm P0336 and record freeze-frame data, engine RPM range, temperature, and any related codes (P0335, P0337, etc.).
• Clear codes after noting them, run the engine, and see if P0336 returns. Intermittent codes may require repeated testing and a short drive cycle.

B. Inspect the basics

• Inspect battery voltage and charging system. A weak or fluctuating battery can affect sensor signals.
• Check for obvious wiring damage near the CKP sensor and along the wiring harness (routing near belts, heat sources, or moving parts).
• Inspect CKP sensor connector for corrosion, bent pins, moisture, or poor sealing. Disconnect and reconnect with dielectric grease if appropriate.

C. Check power, ground, and references

• With engine off, back-probe the CKP sensor harness:
  • Verify 5V sensor reference to the CKP sensor (usually a dedicated reference circuit from the PCM).
  • Verify a solid ground path to the sensor.
• With ignition on (engine off or cranking for test), verify that the reference voltage remains stable (no excessive drop or loss) and that the ground is solid.

D. Inspect sensor signal and waveform

• Use an oscilloscope or a scan tool capable of live CKP waveform monitoring.
• While cranking, observe the CKP sensor signal:
  • Expect a clean, repeating waveform with consistent pulse spacing corresponding to the crank angle.
  • Look for missing pulses, irregular waveform, degraded amplitude, or intermittent connection.
• If you see a flaky waveform (missing pulses or highly irregular signals) while the engine is cranking or running, suspect the CKP sensor, its wiring, or the reluctor ring.

E. Inspect the crank position sensor and related hardware

• CKP sensor location varies by engine option, but it is typically mounted near the crankshaft pulley or flywheel with a two- or three-wire connection.
• Check sensor mounting torque and alignment; ensure it is not loose or misaligned.
• Inspect the reluctor ring (tonque or tone ring) for damaged teeth, debris, or oil contamination near the sensor gap.
• Look for oil leaks or contaminated coolant/oil near the sensor that could affect readings.

F. Check timing-related issues

• For suspected timing-related causes (e.g., damaged timing chain/tensioner or severe wear), perform a mechanical inspection if you have access. An engine mechanical issue that disrupts the CKP signal can trigger P0336.
• If timing is suspect, do not assume replacement of the sensor alone will fix the issue; timing components may need inspection or service.

G. Consider related codes and system interactions

• If P0336 occurs with other CKP family codes (P0335, P0337, P0338), address the other codes in sequence as they may indicate a common problem area (wiring or PCM rather than a sensor itself).
• If all electrical tests pass but the problem persists, the PCM could be at fault (less common; verify with professional diagnostics and possible reprogramming).

H. Replacement/testing path

• If the CKP sensor shows consistent signs of failure (bad waveform, poor references, obvious physical damage) and wiring is intact, replacement of the CKP sensor is a common next step.
• After any CKP sensor work, clear codes, perform a test drive, and verify the issue is resolved or if P0336 recurs.

RELATED CODES

• P0335: Crankshaft Position Sensor A Circuit Malfunction
• P0337: Crankshaft Position Sensor A Circuit Low Input
• P0338: Crankshaft Position Sensor A Circuit High Input
• P0339: Crankshaft Position Sensor A Circuit Intermittent/No Signal
  Note: These are part of the same crank position sensor family. If multiple CKP codes appear, address wiring, connections, and sensor integrity first.

REPAIR OPTIONS AND COSTS (2025 PRICES)

Prices can vary by region, shop, and parts quality. The ranges below are approximate ballpark figures for the U.S. market.

• CKP sensor replacement (labor and parts)

  • Parts: typically $20–$100 (aftermarket) or $80–$180 (OEM)
  • Labor: 0.5–1.5 hours (varies with engine layout and data access)
  • Estimated total: roughly $120–$350

• CKP sensor with wiring harness repair

  • Parts: CKP sensor plus any damaged harness or connectors ($20–$150)
  • Labor: 1–2 hours
  • Estimated total: roughly $200–$500

• Reluctor ring damage or misalignment (rare; if required)

  • Parts: Reluctor ring or related timing components
  • Labor: 2–4 hours (may involve timing cover or accessory removal)
  • Estimated total: roughly $400–$1200

• Timing chain/belt service or mechanical timing issues

  • Parts: Timing chain/belt kit, tensioners, guides (range varies by engine)
  • Labor: 4–8 hours
  • Estimated total: roughly $800–$1500+

• PCM replacement or reprogramming

  • Parts: PCM (engine computer)
  • Labor: additional time for programming and immobilizer considerations
  • Estimated total: roughly $300–$1000 (parts plus labor)

Notes:

• If a cost estimate seems high, it might reflect a timing-related problem or PCM-related service; start with the CKP sensor and wiring, which are the most common fixes for P0336.
• Always obtain a detailed diagnostic quote before work and ask for a replacement part warranty where possible.

DIY vs PROFESSIONAL

• Do-it-yourself viability:
  • If you have basic automotive electrical testing skills, the right tools (digital multimeter, possibly an oscilloscope or a scan tool with live CKP waveform), and access to replacement CKP sensors, you can perform a CKP sensor replacement and wiring inspection.
  • Steps typically include battery disconnection, sensor removal/installation with correct torque, connector cleaning/reseating, and rechecking voltage references and waveform.
  • Pros: Lower cost, learning experience.
  • Cons: Electrical diagnostics can be tricky; missing a wiring fault or timing issue may lead to recurring codes or misfires.
• When to go professional:
  • If waveform testing or scope work is not available or you are unsure about timing components, PCM concerns, or you encounter intermittent signals that are difficult to diagnose.
  • If the Durango has multiple CKP-related codes, or if you suspect mechanical timing issues, professional diagnostics are recommended.

PREVENTION

• Regular maintenance on the engine’s electrical system:
  • Keep battery in good health; a healthy electrical system supports stable sensor readings.
  • Inspect and clean electrical connectors periodically, especially around the crank area and any harnesses exposed to heat or moisture.
• Manage oil leaks and contamination:
  • Address any oil leaks promptly; oil on the CKP sensor or reluctor ring can degrade readings.
• Timing components lifespan:
  • Follow vehicle-specific maintenance intervals for timing chains/belt components (as applicable to your engine option). Worn timing components can create noisy or erratic CKP signals.
• Environment and handling:
  • Avoid excessive engine heat exposure to sensor areas and protect wiring from abrasion or impact.
• After repairs:
  • Clear codes, run through the recommended drive cycle, and verify the code does not return. Ensure the CKP-related waveform is stable and within expected range.

Quick diagnostic checklist summary

• Confirm P0336 and any related codes; review freeze-frame data.
• Visually inspect CKP sensor, wiring harness, connectors, and grounding.
• Check 5V reference, ground integrity, and battery health.
• Test CKP sensor signal with a scope or reliable waveform tool; look for clean, consistent pulses.
• Inspect crank reluctor ring and timing components if electrical tests are inconclusive.
• Replace CKP sensor if fault signs are clear and no mechanical cause is found.
• After repair, drive test and confirm no reoccurrence of P0336.