NHTSA Complaint #11524159 — 2015 JEEP GRAND CHEROKEE

3.6L Pentastar engine is defective. In October 2020 (55,000 miles), there was a ticking noise coming from engine and reduced engine power. Fields Jeep Dodge Ram Chrysler replaced right intake camshaft and 6 lifters, rockers, and related gaskets. In April 2021, I noticed same ticking noise; brought back to dealership; dealership found "nothing wrong." In March 2022 (70,000 miles) I heard same ticking noise; brought to dealership; insisted something was wrong. SURPRISE! This time, ALL (12) ENGINE lifters/rockers/gaskets & camshafts replaced. Now, May 2023 (80,000 miles) there is, again, ticking in engine/loss of power; this time there is a noticeable bucking and surging when the engine is cold. There were no warning lights or messages on the dashboard to indicate impending engine failure. Symptoms I experienced were loss of engine power, ticking, and bucking/surging. I WISH someone from NHSTA would come and inspect the car. Safety issues can arise if the engine fails while being driven - increased risk of stalling, loss of motive power, obviously collision, any number of things. On two separate occasions, Jeep dealership identified and "fixed" the issue with the same faulty parts that caused the problem in the first place. Other than the dealership, no one else has inspected the vehicle. This issue is ongoing and will continue to occur as a result of an inherently faulty engine design, for which the only remedy is to fix it with the same defective parts.