powerstroker66
New member
I have a motor here i pulled from a parts truck and the guy claimed the pick up tube was split so the LP pump wouldn't feed the hpop res....sure as shoot truck would run for 30 seconds until the res. got low and truck would shut off. After pulling pan and finding the tube was fine, i pulled the LP pump and found he used grease in the pump and plugged the oil cooler holes thus no hpop feed. So i cleaned and blew out from the hpop feed down to oil cooler to make sure nothing was blocked, put on a clean, different oil cooler, i parts washed, resealed, and reassembled the LP pump. After putting engine in a different truck it is still doing the same thing, i can't get it to prime, is there anything i'm missing? Is the LP pump bad even though it appeared fine?