What ground are you talking about, main ground is located on battery to chasey or to engine. Other wise there are many grounds on this vehicle.
the hot wire goes to the starter and the ground wire bolts to the engine block.
The fuel stop solenoids on a DT466 are actually three wire types. There is a ground wire, a pull-in wire, and an ignition wire. It will be on the main engine harness just above the pump.
The battery ground wire runs from the battery to the engine block.
There is no ground wire.... it grounds through where it touches the engine
The ground wire should come from the ground rod and to the main electrical panel grounding terminal.
Easy, Ground it with your stereo ground wire.... (make the pink wire and black wire connect to the Main Ground wire which is also Black)
The ground wire leads from the negative side of the battery and connects either to the engine block or to the frame of the automobile.
Remove the spark plug wire from the spark plug. Use some heavy gloves or a set of insulated pliers to hold the spark plug wire about 1/4-inch from the engine block (ground) and crank the engine - you should see a spark jump from the wire to the engine ground. For a better check, use another spark plug and put it on the spark plug wire and use it as a "jumper" from the wire to the engine ground.
Might be bad ignition switch?? Check the ground wire as well. Check and clean if corroded: The Ground strap/wire from the frame to the engine The small ground wire from the battery to the body The Ground wire from the battery to the engine.
Negative - (Black) is Ground, Positive + (Red) is Hot. Ground wire goes to Negative (Black) it goes from negative on battery to engine for ground.
if it is a big power wire ( same size as the battery cable ) then it is the earth wire you should find that the battery has one wire going directly on to the engine or chassis there are different arangements the negative wire could be coming directly to the starter and if this is the case then the wire is just earthing the engine but in a lot of cases the starter is getting its ground from the engine and the engine gets its ground from the battery