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The jerking sounds like a belt slipping. As for the Stall problem and the Check Engine light, that means the onboard computer is detecting an emission fault. Have a dealership pull the codes as soon as possible after the light comes on. It could be an o2 sensor, EGR valve or even a catalydic converter stopping up.

If the later happens, you can blow the head gaskets.

The car jerking could just be the power steering messing up, and as for the check engine light, well it could be the distributer, or the electronics getting messed up because of the hill, porbably the distributor, because as far as I know the distributer needs to be a certian angle, and it could be loose or broken and when you go up hill it agitates the distibutor. I might be wrong. That is my guess

i could be checking and cleansing the autos electric charging gadget from the battery, alternator , starter , engine block floor posts and connections , plus i could be cleansing the under the hood fuse field connections , plus the interior fuse fox , that includes the fuses and relays. one factor that could short out yet not be considerable is the starter's solenoid internally and that could drain the battery a lot. wish that helps and better of success.by using ways i could in all probability start up out with the main least complicated a threat reason and maximum inexpensive interest being changing the solenoid or do away with the stater and have a starter re-builder shop try to replace the solenoid.additionally i could be checking each and every of the main wiring of the motor vehicle for frayed , broken , burnt or melted or inner corrosion and that i could be changing the main battery submit wires too.

You could have a bad vacuum connection to the fuel pressure regulator.Check all vacuum lines for cracks and replace if necessary.

fuel pump might be on the verge of dying. take it to a shop; the pump will be in the gas tank, and it isnt what u'd call an easy job.