1996 gmc jimmy hard start when nose is up on a hill starts fine when nose in down on a hill?
This is problem with a poor fule pump assembly.
started in the Bronx as a girls team to party, the first girl that was in swag beyond reckless was jimmys cuzzin, but she didnt want that name and changed it , jimmy said "no that you should keep that name because you finsh what you start but yet again" she shut it down and jimmy used it to start music up.
If you don't start the engine, electrical power is only sent to the fuel pump for a few seconds after turning on the key. That often makes it difficult to trace down the problem. If the engine starts, the fuel pump will remain on, but there is no need to be sending fuel to an engine that isn't running.
Objects start out as either a rest or moving. If they are at rest, they require a force to be applied for them to start moving. If they are moving, they require a force to either slow them down or to make them stop. That means that once something starts moving, it will move forever, unless a force slows it down. The catch is that the force can be friction.