2014 Jeep Grand Cherokee 3.0 Ecodiesel 188k miles
Just completed walnut blasting the intake ports, replacing the glow plugs, water pump, oil cooler, and all the usual rubber hoses. Took it on a 600 mile trip, no issues, dropped off at dealer for Z46 HP fuel pump recall. Got it back pulled the oil filter and drained the oil through a bug screen basically to precautionary check for debris.
Was quite concerned at what I found, noticeable pieces of carbon but no metal luckily, and lucky a dealer technician replied on the FB group after explaining the issue, the tech explained what had occurred.
The tips of the injectors are sealed to the cylinder head with copper washers, some or all of the copper washers had leaked, the path of least resistance is leaking through the valve cover gasket ive found out. Its basically combustion gas leaked into your valve cover.
Possibly you can replace these washers, based on the mileage and noticing Bosch now offers remanufactured ecodiesel injectors I opted for remans, input the injector codes with Alfa OBD.
300 Miles and 2 oil and filter change's later and now the oil filter is carbon dust free, since the injector change out.
Jeep drives noticeably better with new injectors, since 100k and when the dealer loaded V08 emissions recall software, drivability and fuel mileage took a bad turn, coincidence, back above 30mpg now.
I’d recommend injectors are replaced on ecodiesels i’d say 150k miles. To avoid the potential for cooking the valve cover gaskets, potentially ruining your engine. Replacing ecodiesel injectors isn’t hard.
Just completed walnut blasting the intake ports, replacing the glow plugs, water pump, oil cooler, and all the usual rubber hoses. Took it on a 600 mile trip, no issues, dropped off at dealer for Z46 HP fuel pump recall. Got it back pulled the oil filter and drained the oil through a bug screen basically to precautionary check for debris.
Was quite concerned at what I found, noticeable pieces of carbon but no metal luckily, and lucky a dealer technician replied on the FB group after explaining the issue, the tech explained what had occurred.
The tips of the injectors are sealed to the cylinder head with copper washers, some or all of the copper washers had leaked, the path of least resistance is leaking through the valve cover gasket ive found out. Its basically combustion gas leaked into your valve cover.
Possibly you can replace these washers, based on the mileage and noticing Bosch now offers remanufactured ecodiesel injectors I opted for remans, input the injector codes with Alfa OBD.
300 Miles and 2 oil and filter change's later and now the oil filter is carbon dust free, since the injector change out.
Jeep drives noticeably better with new injectors, since 100k and when the dealer loaded V08 emissions recall software, drivability and fuel mileage took a bad turn, coincidence, back above 30mpg now.
I’d recommend injectors are replaced on ecodiesels i’d say 150k miles. To avoid the potential for cooking the valve cover gaskets, potentially ruining your engine. Replacing ecodiesel injectors isn’t hard.
