I have a 2006 5.9 that is leaking diesel on the drivers side of the engine towards the bottom. I was told that it was the injection pump but I dont know for sure. He told me if the truck is not running bad to not to worry about it because it cost a lot to replace. It is not leaking bad but it is wet on the bottom of the engine. What is this leaking and should I be worried about it until it causes problems?

 

Welcome to the forum.

You need to know for sure where the leak is coming from. I would wash the engine down and then check for the leak. If it is coming from the CP3 injection pump and the leak is very slight you might want to just keep a watch on it and drive it until the leak gets worse. If the leak is from another place then it should be easy to fix.

 

Thanks for the reply. I am going to wash it. Where is the injection pump located on the engine?

 

Injection pump is on drivers side, front end of engine and about mid hieght. It's kinda hard to see/reach from top can see from bottom, but best is with inner fenderwell removed. After you was the engine remove inner fender and look in from the side, just don't stick fingers in if you have it running due to high pressure lines, don't sound like it's a high pressure leak do to just being "wet".

 

Re: pump location - follow the two fuel lines running forward from the fuel filter canister. That big black triangular thing (that's what it looks like to me) that the lines go in are the CP3.

 

Common issue for the CP3 (injection pump) to leak when the weather turns cold. If it leaks into the front timing cover you will need to get it replaced due to fuel dilution of the oil. Make sure and run an oil analysis on the truck.

 

Thanks for the info. everybody.

 

Could be something simple like the banjo fitting on the fuel line attachment point or the fuel line at the pump. Hope so as that is the cheapest problem to fix. Someone also mentioned the transition to cold weather. That is why I plug my truck in at 32ºF or 0ºC in the winter. Keeps the entire block warm and I will gladly waste $200 of electricity over the winter as opposed to replacing expensive parts on the engine such as pumps etc.
Good luck

 

Pretty much do the same thing at -5C and colder as mine only runs for about 4/5 hours a night as i plug it in before bed---i"m up AT 2:45AM so warm up is faster on the drive in.PS-----Salmon ARM. BC---love it visit out there as the MRS has family in town.DW