Gary
Member
I have a 7.3 that doesn’t have any LPOP. It was going down the road and quit.
I checked the oil reservoir and it was low, so I filled it up and the engine ran for about 15 seconds then quit. I check the reservoir and it’s empty again. I pulled the LPOP pump apart and everything looks perfect, so this engine is dumping the oil pressure internally.
Anybody ever come across this problem before? Could it be the pressure relief in the oil cooler? Somebody did tell me there is a plug the blows out somewhere towards the back of the block and that could be where the oil pressure is going.
Anybody has a flow chart of oil pressure? Sometimes the factory manuals would show that.
All these years of working on 7.3’s and I’ve never seen this problem before. Also this van only has about 130k miles on it.
I checked the oil reservoir and it was low, so I filled it up and the engine ran for about 15 seconds then quit. I check the reservoir and it’s empty again. I pulled the LPOP pump apart and everything looks perfect, so this engine is dumping the oil pressure internally.
Anybody ever come across this problem before? Could it be the pressure relief in the oil cooler? Somebody did tell me there is a plug the blows out somewhere towards the back of the block and that could be where the oil pressure is going.
Anybody has a flow chart of oil pressure? Sometimes the factory manuals would show that.
All these years of working on 7.3’s and I’ve never seen this problem before. Also this van only has about 130k miles on it.
