3.6 Pentastar rocker-arm / lifter failure causing misfire and tick (earlier cars).
- Typically appears
- 80,000+ miles
- What to inspect
- Listen for a tick and scan for cylinder-2/misfire codes.
The 3rd-gen Durango is a capable three-row SUV; the Pentastar V6 rocker arm and electrical (TIPM) faults are the checks.
Compiled & reviewed by the VehicleFaults Research Team · last reviewed July 2026
3.6 Pentastar rocker-arm / lifter failure causing misfire and tick (earlier cars).
TIPM (integrated power module) faults causing random electrical issues.
Brake wear and pulsation.
Automatic shift quality on higher-mileage cars.
Generate a full, tickable pre-purchase checklist tailored to this exact vehicle — add photos and notes as you inspect.
Generate a free checklistAverage — early Pentastar rocker-arm and TIPM electrical faults are the main concerns.
The 3.6 Pentastar (post-update) is solid; the 5.7 HEMI is strong but thirstier.
The Totally Integrated Power Module controls electrics; failures cause odd gremlins.
Faults are compiled from documented recalls, technical bulletins, owner reports and mechanic sources, then reviewed for accuracy. This is guidance only · not a substitute for a professional inspection.