I have had this truck personally for three years and I love it it is the perfect work truck for me here on the ranch but it is developig an alarming issue an oil leak.it seems to be comming somewhere on the front of the motor on the drivers side. there are two metal hoses I believe they are tranny coolant lines that it drips from but it is not tranny fluid. I suspect maybe it might be from the powersteering/vacum pump seals and to make matters worse it is engine oil as far as i can tell. are there any typical seals that have a tendancy to go here in this area? is there a seal on the injector pump or the drice that runs the vac pump. the truck has 256000 on it and I would like 100,000 more any ideas...please?

 

It sounds like the vent tube on the front of the engine?

 

Check out this post. Order the inexpensive kit from fixinrams. You'll be good for another 250K.

 

Check this out..
http://www.stamey.info/Truck/Cummins53BlockFAQ.htm

 

I have the same da%& leak on mine, had it to the dealer 3 times, they keep telling me it's the vent tube, but even cleaning it with every oil change it still leaks up front. Last time they told me to put a piece of sponge in it to keep it from splashing out. Haven't tried that yet, but sounds like crap to me..