Alright, so Ive had this leak for awhile, but it recently got bad. Its somewhere behind the injection pump. I dont know if its a return line or what, but when you look behind the pump from the top between the IP and the block, its all completely clean from the hot oil. When the truck is running, you can see the blue haze coming from in there. When you look under the pump, you can see the right side of the block and all the front suspension is COVERED in grime, gunk, and oil. When its parked, I leave massive black stains. Im at a loss as to what to check. Ive tightened every line, nut, and bolt I can possibly get to without yankin the pump. Im losing near a quart and a half a week, driving maybe 20-30 miles a day. (a week being 5 days.) Any reccommendations? Tired of spending just as much money on oil, as I do on fuel.

 

vacuum pump gaskets or injection pump gasket to case or case to block gasket. thats where our 90 is leaking from.

 

Its something pretty bad. I imagine im going to have to end up yanking the pump, but im trying to do everything I can to avoid that because I have absolutely no idea how to pull it

 

is the front main in good shape?

 

check the timing pin and see if it didnt fall out
it could be the tappet cover leaking
also have you done the kdp yet

 

Negative on the kdp. And yeah, the front mains in good shape.

 

there is a oil feed line from the pump to a t goes in the block an down to vacuum power steering drive shaft housing. its a steel braided line with crimped on fittings. mine was leaking very bad from there. but the best way to find it is to clean very well an add oil dye. go drive for awhile an crawl under with a black light an yellow safety glasses an u will b able to see exactly where it is coming from. this is how we do it at the dealer. it will give u the source an the trail. good luck.

 

dido! Done a lot of those lines over the years.

 

Could it be the tappet cover gasket....?

 

Gonna do the dye ASAP. Thank you very much for that. For the record, I put a quart in the day I started this thread, and just tonight she easily drank my last reserves of a quart and-a-half.