My2016 JGC CRD was running fine so I let it go for until I returned home, 250 miles away. 2015 Grand Cherokee Overland 3.6L V6 2014 Jeep Grand Cherokee DIESEL It works like the day I bought it!! Oh man, if only I knew this was the issue I would've cleaned it more often. OilFilter. To fix an oil filter leak, you will have to replace the oil filter itself. For this, remove the oil filter using a filter wrench. Be careful that the gasket does not stick to the engine. Then, set the new filter and tighten it as required. Finally, check the hot engine to confirm the oil leak has stopped. Seattle WA. Tacoma, WA. How reliable is the 2016 Jeep Grand Cherokee? See the most common repairs performed and learn if your vehicle is at risk for major Gallery2016 Jeep Grand Cherokee Summit EcoDiesel. Open Gallery. The Grand Cherokee is a known quantity, but one flavor of this luxurious midsize SUV is often overlooked: the diesel-powered model. 2015Grand Cherokee eco Diesel engine shudder I have been having this intermittent engine shudder my jeep for couple months. There is a service bulletin for the 2014 model year only. Just wondering if anyone with a 2015 model is having the same problem with the Jeep or Ram truck, because they use the same diesel. Worst2017 Jeep Grand Cherokee Problems #1: Not Shifting Properly 2017 Grand Cherokee Average Cost to Fix: $900 Average Mileage: 11,000 mi. Learn More #2: Won't Start 2017 Grand Cherokee Average The2015 Jeep Grand Cherokee has 27 NHTSA complaints for the fuel system, diesel at 62,146 miles average. (Page 1 of 2) 4 Poor gas mileage. Some drivers report low gas mileage issues from old Jeep Cherokees. One driver who owns a Cherokee with MPG of 21 to 28 miles, an average of 25 miles, said the Cherokee seems unbelievably poor gas mileage. Jeep estimates the gas mileage of the new Cherokee to be 24 combined city and highways. lstowell 4607 posts · Joined 2013. #3 · Aug 27, 2014. If the fuel pressure sensor does not detect enough fuel pressure in the injector fuel rail, it WILL immediately shut the engine off. Doesn't matter if due to a failed fuel pump, a busted injector, a big hole in the high pressure fuel circuit, whatever. 2015Jeep Grand Cherokee 3.0 Diesel V6 Summit has thrown a P0366 code. When it first happened engine kept running, but engine warning light and throttle light came up on dash. I lost all throttle and gears wouldn’t shift. Couple days later Throttle and gears have come back, Car takes a while to crank, but it does run. UyxH.