Do you use a cetane booster?

[22EcoDs]

I have used Hot Shot Secrets EDT and Diesel Winter Anti-Gel since the day I purchased my 2021 JTRD with 9miles on the odometer. This is from reading all the CP4 failures in other trucks.

I put in 1oz regardless of how much fuel I use when filling. 2oz if the tank is near empty. Recently I have also been adding the LX4 when I fuel. I install a new fuel filter every 10k miles and have not noticed any metal in the filters yet. Fingers crossed as I received the recall notice for my VIN. 36K miles and counting until they have replaced a few of these HPFP's in other Jeeps. I honestly don't want a dealership tech under the hood.

I don't think you would get metal in the filters , unless the in tank pump grenades but I don't think we have seen that happen.

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[IPRoutes]

I don't think you would get metal in the filters , unless the in tank pump grenades but I don't think we have seen that happen.

When you shut off the 3.0L, there is a buzzing sound under the hood that lasts approximately 3 minutes. Some Jeeps are louder than others, but parked inside the garage, it is very prominent.

I was told that is a pump sound of fuel being returned back. If that is the case, and there is some damage to the fuel pump, metal can get into the filter, isn't it?

 

[ParatusExpeditions]

Always wondered what it was, TIL

 

[22EcoDs]

When you shut off the 3.0L, there is a buzzing sound under the hood that lasts approximately 3 minutes. Some Jeeps are louder than others, but parked inside the garage, it is very prominent.

I was told that is a pump sound of fuel being returned back. If that is the case, and there is some damage to the fuel pump, metal can get into the filter, isn't it?

I didn't even think of the fuel return. Good point.

 

[KW80]

I didn't even think of the fuel return. Good point.

Official explanation for buzzing sound in post at link below.

https://www.jeepgladiatorforum.com/...d-from-engine-after-shutoff.35747/post-827074

 

[Sank]

GDE turns that off.

"Eliminated pump grinding noise after engine is turned off, more pronounced on Jeep applications"

https://greendieselengineering.com/...-wrangler-gladiator-performance-fuel-economy/

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