2020 Nissan Pathfinder Engine Problems

Your 2020 Pathfinder is misfiring and making severe knocking sounds. Nissan diagnosed metal shavings in your oil caused by long block engine failure and a loose timing chain, despite you following the recommended 4,000-mile oil change intervals and having the fluids flushed twice in 5 years. This indicates internal engine wear or timing chain damage. The repair will likely require replacing the timing chain and possibly rebuilding or replacing the engine block.

Your 2020 Pathfinder may fail emissions testing because the oxygen sensor stops working in a way that prevents the engine computer from completing emissions readiness checks — but your car won't show a check-engine light or any warning codes to alert you. This means you won't know there's a problem until you fail an emissions test and can't renew your registration. The fix requires replacing the upstream oxygen sensor, which can cost around $1,450 and may not be covered under warranty.

There's been a loss of power when accelerating, engine has made an odd noise during startup and occasionally a knocking noise when driven longer than a 10 mins. Dealership said there's metal in the oil pan. I saw an article today that said only nissan three and four cylinder vehicles have these issues but my pathfinder has the same problems.

Engine misfiring on left side due to faulty timing chains. Car would not start at times, and engine light flashing. Safety was at risk due to engine being unreliable, misfiring, and we were advised it could possibly stall/cut-out while driving. Problem confirmed by independent service center. Dealer service center would not diagnose without taking engine apart at our expense, they recommended replacing the whole engine, and the car is only 3 years own. There is a know issue with the timing chains on this model of vehicle, yet they did nothing to resolve the problem.

I drove from Pine Bluff, AR to Memphis, TENN in pouring rain. There were many tractor trailers on the highway throwing water back on my vehicle. When I got into Memphis, my vehicle shut down and would not re-start for several hours. I believe this to be a safety issue because if I had driven a little farther and it suddenly shut down in traffic, this would have caused a terrible accident.

Engine failure while driving. Abnormal engine oil consumption. Oil level dropped without warning and without any warning lights from the vehicle. The vehicle oil level as checked 1 day prior to failure.

Engine pinging/knocking and engine hesitation / surging most obvious in second gear steady throttle around 2k rpm. Doesn't matter what gas is used. Engine hesitation and pinging/knocking is getting worse. NISSAN states its normal operation.

TL* THE CONTACT OWNS A 2020 NISSAN PATHFINDER. THE CONTACT STATED THAT THE CHECK ENGINE WARNING LIGHT ILLUMINATED INTERMITTENTLY. THE CONTACT TOOK THE VEHICLE TO COURTESY NISSAN (1777 N CENTRAL EXPY, RICHARDSON, TX 75080, (972) 231-2600) AND WAS INFORMED THAT THE OXYGEN SENSOR FAILED AND NEEDED TO BE REPLACED. THE VEHICLE HAD NOT BEEN REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 19,700.*DT

WHEN DRIVING OR IDLING YOU GET A SMELL OF ANTIFREEZE INSIDE THE DRIVERS COMPARTMENT. DEALER SAID THE ONLY WAY TO FIX WAS TO GET THE HEATING AND COOLING SYSTEM ON RECIRCULATING AND NOT FRESH AIR. THIS IS CONSTANT PROBLEM NO MATTER THE TWHAT THE TEMP AT URGE ISOUTSIDE.