Crankcase (pcv) Problems of Jeep Cherokee

Incident date/time: 06feb2024 1140hrs mdt*year, make, model: 2019 Jeep Cherokee latitude upland 4x4 3. 2l v6 f/I gas 4d SUV*odometer when incident occurred: 80,358*injuries: failed or malfunctioned component or system: engine*warning lamps, messages or other symptoms of the problem prior to incident: recent maintenance history, date and location: routine maintenance, inspections, oil, lube*last oil change, location and mileage: Dec 2023, hot springs, sd, odometer 78,653 and from travel details: traveling home to hot springs, sd from henderson, nv after grandmother passing*incident location: eastbound I-80, mm/mp 180, 6. 8 miles east of wamsutter, incident details, include velocity, vehicle load/trailering/towing, road conditions:*eastbound I-80, fair weather, snow, plows in service that day on interstate, velocity 70mph, left lane behind tractor trailer passing a slower tractor trailer in the right lane when incident occurred, observed and heard roadway obstruction/debris struck one mile prior to failure, unknown obstruction/debris type, no malfunction indicator lights, no information on dash heads-up display, no indication of an issue present or imminent; normal load, not pulling/trailering, slight (<1% grade) incline, road straight; Jeep performing normally prior to incident; without warning, a "pop" was heard in the cabin, smoke billowed from under the hood and rear of vehicle and immediate powertrain failure; malfunction indicator light indicates engine issue, heads-up display flashes performance, oil pressure, stability and traction control failure warnings, engine power ceased, operator safely maneuvers from left lane to shoulder; visual inspection reveals engine oil loss, engine block rod part observable at the bottom of engine compartment; incident documented, photographed, reported to insurance and warranty*problem confirmed by dealer shop, inspected by insurance and warranty companies - blown motor, undetermined*past pcv issues possible cause.

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Tl- the contact owns 2015 Jeep Cherokee. The contact stated that while driving and when starting the vehicle, it make a rattling noise that was coming from the engine and sometimes it hesitated to drive and will run ruffly. In addition, the contact also stated that the vehicle would accelerate and then decelerated independently. No warning indicator lights illuminated. The vehicle was taken to hemet Chrysler Dodge Jeep ram dealer, (425 motor way, hemet, CA 92545, (951) 225-4217) and was diagnosed and found cylinder ll misfired and low on two quart of oil, cylinder two to be low compression 125 instead of 150. 00 and found 35% of oil leak in crankcase scoop cylinder two wall and found scoring. Removed engine accessory and removed engine from the vehicle and swap over intake manifold and wire on the new engine. The engine was replaced. The vehicle was repaired under warranty. However the failure recurred and was taken back to the same dealer, with the same noised and a new noise occurred that was coming from the engine and was informed that the new noise was because the engine top was loose and the regular noise was normal. The technician informed the contact that once the vehicle was driving the failure would go away. The vehicle was not repaired. The manufacturer was made aware of the failure and provided a case number: 71717548. The failure mileage was approximately 70,000. Aw.

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Tl- the contact owns a 2016 Jeep Cherokee. The contact stated that while driving at 45 mph, the vehicle stalled without warning. The failure recurred intermittently. The vehicle took multiple attempts to restart. The vehicle was taken to the dealer where it was diagnosed that the vehicle needed an oil change. The vehicle was repaired but the remedy failed. The vehicle was taken back to the dealer where it was further diagnosed that the positive crankcase ventilation valve had failed and needed to be replaced. The vehicle was repaired. The manufacturer was not made aware of the failure. The vehicle failure mileage was 5,400. Jo.

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1. Vehicle overheating and very low oil pressure 2. Found cracked cylinder head between cylinders 3 and 4 causing coolant to enter crankcase and contaminate oil. Thus ruining engine bearings. 3. Replacement of cylinder head with earlier model design and new bearings in engine.

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