Investigating the P0100 Code on Your 2020 Dodge Durango
A P0100 code on your 2020 Dodge Durango indicates the PCM has detected a mass airflow (MAF) sensor circuit malfunction. The Durango's 3.6L Pentastar V6 or 5.7L Hemi V8 has been in service for 4-6 years, making MAF contamination and component wear the primary suspects.
What P0100 Means
P0100 flags erratic, intermittent, or out-of-range MAF sensor signals. The Durango's naturally aspirated engines have straightforward intake tracts where contamination accumulates over time.
Common Symptoms
- Check engine light on
- Rough idle
- Reduced power (noticeable when towing)
- Poor fuel economy
- Hesitation during acceleration
- MDS issues (Hemi)
Top Causes Ranked by Likelihood
- MAF sensor contamination (35-40%) — Years of oil vapor and debris
- Air filter neglect (20-25%) — Overdue replacement
- Intake duct degradation (15-20%) — Rubber cracking from heat
- Wiring and connector aging (10-15%) — Corrosion
- MAF sensor wear (10-15%) — Element degradation
DIY Repair Guide
Clean the MAF ($10-15): Best first step.
Replace air filter: If overdue.
Inspect intake duct: Check for cracks and loose clamps.
Warranty Status
Basic warranty expired 2023. Powertrain (5yr/60k) through 2025. Emissions: 8yr/80k through 2028.
Estimated Repair Costs
- MAF sensor cleaning: $10-15 (DIY)
- MAF sensor replacement: $100-260 (OEM) + $80-150 (labor)