First, have a reputable technician scan your trouble codes.
Resetting the SES light is not fixing your problem.
The OBD2 system in a 96 model truck will store a fault code and some limited scan data from when the fault occured to help with diagnosing your problem.
Does the SES light flash or stay on steady?
If it flashes, your second problem may be related. You may be experiancing an engine misfire (may be the popping sound you hear). Have you felt a loss of power ?
Unfortunatly I can't diagnos your problem over the internet, but hopefully lead you in the right direction.
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