2019 Jeep Grand Cherokee: engine knocking or ticking

Filed Feb 24, 2026 · Engine · MI

2019 jeep grand Cherokee 3.6L. Severe misfiring on expressway causing vehicle to shake uncontrollably and stall. “Pentastar tick” Ticking sound coming from engine. Took to local repair shop and right cam shaft is worn down causing misfiring and engine damage. Cost is $4,000 for the camshaft replacement and will likely need a new engine. Vehicle has less than 109,000 miles on it. Known issue on this vehicle, I called multiple shops and they all said that the can shaft is probably bad because they see the issue all the time.

Filed Dec 2, 2025 · Engine · IL

My 2019 Jeep Grand Cherokee (3.6L engine) suffered a sudden and catastrophic engine failure immediately after the dealership misdiagnosed a coolant leak from the oil cooler assembly. The oil cooler on this engine has a well-documented history of cracks, coolant contamination, and sudden oil loss across multiple Jeep model years. On October 25, I reported a coolant leak to the dealership, including a photo of bright pink coolant. The service advisor incorrectly told me it was “oil mixed with coolant,” did not document urgency, and did not involve a technician. I received no warning that this leak was dangerous or likely to cause engine failure. Within about a week, the oil cooler assembly failed, dumping the engine oil, causing smoke, knocking, and complete engine destruction. There was no prior warning from the dealership despite me reporting this issue directly. The dealership later created service notes that inaccurately stated they “informed me of a leak,” which is untrue. I informed them. Their failure to diagnose and communicate the seriousness of this defect directly resulted in my engine being destroyed. This failure mirrors hundreds of other owner reports regarding oil cooler cracks on the 3.6L Pentastar. This appears to be a pattern of premature oil cooler failure with severe safety consequences and no recall.

Filed Nov 25, 2025 · Engine · 130,000 miles · WI

The contact owns a 2019 Jeep Grand Cherokee. The contact stated while driving 40 MPH, the contact heard an abnormally loud knocking sound coming from the engine compartment. The START/STOP warning light was illuminated. The contact stated that while attempting to accelerate, the vehicle stalled. The vehicle was able to be restarted. The vehicle was taken to the dealer, where it was diagnosed and determined that the head gasket had failed, causing coolant intrusion into the engine. The contact was informed that the head gasket needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 130,000.

Filed Apr 27, 2025 · Engine · IN

Jeep starting making a light ticking sound, like it's low on oil. That wasn't the case. Took in for a tuneup, hoping that would take care of it. It didn't. Took into dealer and the camshaft, rods had been chewed up to a faulty part inside the engine. I didn't have my vehicle for two months due to waiting on warranty company. When reached out to Jeep groups,learned this is s COMMON problem. Concerned my engine could have frozen up while driving. NO warning lights or any other symptom! If my parents hadn't taught me how to listen to vehicles, it could have been very bad turnout. This cost me almost $4k. This should be investigated!!

Filed Mar 7, 2023 · Suspension, Wheels · FL

Loud creaking sound coming from both front tire areas when driving low speeds and turning the wheel. I took the vehicle to the shop and they could not identify where the creaking noise was coming from. There’s no knocking or shaking in the steering column. It sounds like it’s the shocks/ suspension in both front tires.