What P0174 Means on Your 2024 Dodge Durango
A P0174 code on your 2024 Dodge Durango means Bank 2 is running too lean. The 2024 Durango offers the 3.6L Pentastar V6 (293 hp) and 5.7L HEMI V8 (360 hp). Bank 2 is the passenger side on both V-configuration engines. The PCM has detected that lean fuel trim corrections have exceeded normal limits on that bank.
Your 2024 Durango is under full warranty. Take it to the dealer for a free diagnosis and repair.
Symptoms
- Check engine light on
- Rough idle
- Reduced power
- Poor fuel economy
- Acceleration hesitation
- Possible engine knock
Common Causes
- Vacuum Leak (30% likelihood) – Factory assembly issue with intake gaskets or hose connections.
- Exhaust Manifold Leak (25% likelihood) – Even on newer HEMIs, exhaust manifold bolt failures can occur.
- MAF Sensor Issue (25% likelihood) – Factory defect or early contamination.
- Fuel System Defect (20% likelihood) – Faulty injector or fuel pressure issue.
Diagnosis
- Dealer visit – Under warranty, the dealer handles everything.
- TSB check – Stellantis may have service bulletins for 2024 Durango lean codes.
- Component testing – Bank-specific diagnosis with factory tools.
Repair Costs
- All repairs should be covered under Stellantis warranty.
- Out-of-pocket: Vacuum leak $80–$500, exhaust manifold $200–$900, MAF $80–$250, fuel system $200–$600.
Use Your Warranty
The 2024 Durango is covered by Stellantis's 3-year/36,000-mile basic and 5-year/60,000-mile powertrain warranty. There's no reason to pay out of pocket for this repair.
Prevention
- Follow the maintenance schedule
- Use quality fuel
- Report any drivability changes to the dealer
- Keep service records for warranty purposes
- Use OEM components