Grand Cherokee
2 generations · Select a generation to see engines
Which Jeep Grand Cherokee engine is the most reliable? See common problems, reviews and reliability verdicts across generations and engines.
Frequently asked questions
Which Jeep Grand Cherokee engine is the most reliable?
5.7 HEMI V8 (petrol) (Grand Cherokee (WH/WK)) — Maint. Sensitive verdict. The 5.7 HEMI V8 — strong and characterful, with the MDS cylinder-deactivation system. Fundamentally robust but can suffer the HEMI 'tick' (lifter/MDS) and some oil consumption; very thirsty. Good with maintenance, but running costs (fuel) are the real consideration.
Which Jeep Grand Cherokee engines should you avoid?
Engines with the weakest reliability verdicts: 3.0 CRD V6 (VM Motori A630 / EcoDiesel) (Grand Cherokee (WK2)), 3.6 Pentastar V6 (petrol) (Grand Cherokee (WK2)).
What are the most common Jeep Grand Cherokee problems?
The most commonly reported problems across all Jeep Grand Cherokee generations and engines: Injector / HP pump weakness (150–200k km), Catalytic converter / emissions blockage, Lifter tick / coolant intrusion, Cylinder head failure / lifter tick, Oil consumption (sticking rings).