97 Chevy 1500 5.7L Vortex will not start after changing fuel filter and pump.?

Rich

New member
My truck started to start hard. Then it got to the point where I needed to prime the throttle body with gas to start. After a day, I would need to prime again. Then it would not start at all. I changed the fuel filter and now the fuel pump with the same problem. I find the spark from the coil wire is very weak and yellow/orange in color. Any clues?
 
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