the d code said it was o2 sensor, replaced the primary bank1 sensor1 still starts chugging along engine pops a bit when i pump gas pedal it will sometimes just start going again until i begin to slow down, when up to speed 50mph plus runs fine.Mechanics keep saying it could be a number of things how do i narrow it down to the actual problem
hesitates,popping noise, trying to get gas then goes along fine on 1998 Dodge Ram Van 1500
The popping noise usually indicates and ignition problem such as a fouled spark plug or defective ignition wire. Start with the basics. Spark Plugs, Ignition wires, distributor cap, rotor, Fuel Pressure, Compression.and don't forget the fuel and Air filters.