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Jeep Grand Cherokee

Pentastar-3.6 3.6L V6 299 hp Automatic All-wheel drive SUV 2022–2026
– Be Careful
Engine Pentastar-3.6 – Be Careful 4,100–12,500 $

Most-produced FCA/Stellantis engine — used in Wrangler, Grand Cherokee, RAM, Dodge and 20+ models. Rocker arm/lifter tick is subject of a 2022 class action lawsuit. Plastic oil cooler housing leaks at high mileage — worst case mixes oil and coolant ("chocolate foam"). Dorman metal replacement as permanent fix. Change oil every 5,000 miles and react at the first tick: 200k+ miles realistic.

Fun Factor? Decent

Pentastar 3.6 GC WL — proven V6 in new wrapper

299 hp Pentastar in the new Grand Cherokee WL. Same tick issues as all Pentastar variants. Newer generation — less long-term data, but proven platform.

Engine Weaknesses 4

!! Oil cooler housing leak

Plastic oil cooler housing leaks externally or causes oil/coolant mixing ("chocolate milkshake"). Typical from 50k miles. Dorman metal replacement (Dorman 917-114) is the permanent fix — OEM plastic part fails again.

Symptoms: Oil loss, coolant in oil (milky), overheating, oil spots under engine

300–800 $ from 80,000 km
!! Cylinder head crack — early models 2011-2013

Early Pentastar cylinder heads (2011-2013) crack from thermal stress. Design flaw in the coolant channel layout — revised head from 2014 onwards. The most expensive Pentastar repair.

Symptoms: Coolant loss, overheating, white smoke, milky oil

2,000–5,000 $ from 100,000 km
!! Rocker arm tick (class action 2022)

Rocker arm needle bearing wears prematurely — roller falls out of its seat, cam lobe gets destroyed. FCA class action lawsuit (2014-2020). "No permanent fix" per lawsuit — dealers replace with identical parts. Go to dealer at the first tick.

Symptoms: Metallic ticking on cold start, misfires, power loss, surging

500–1,500 $ from 60,000 km
!! Oil filter adapter gasket leak

Oil filter housing gasket leaks — often missed until an oil spot appears on the ground. Cheap repair when caught early.

Symptoms: Oil spot under engine (front), oil smell, dropping oil level

100–400 $ from 60,000 km

Vehicle Weaknesses 4

!! Body Panoramic roof glass spontaneous cracking

Panoramic roof glass spontaneously cracks — more frequent on WL than its predecessor. Multiple NHTSA complaints and dealer reports.

1,000–3,000 $ from 30,000 km
!! Other Recall: Rear coil spring incorrectly installed (NHTSA 2022)

Rear coil springs incorrectly installed (2022 WL) — safety recall NHTSA. Spring can eject → loss of control. Free replacement at dealer.

0–0 $
!! Electronics UConnect 5 freeze/reboot

UConnect 5 infotainment system freezes or reboots — known software weakness on WL early models. Updates partially help.

0–300 $ from 10,000 km
!! Suspension Air suspension calibration fault

Electronic level control throws errors and enters limp mode — calibration fault or sensor failure on early WL models.

200–1,500 $ from 30,000 km