The engine computer is the voltage regulator, and yes you can replace it.
how do you replace voltage regulater on dodge ram van 150 6 cylinder
A 1998 Dodge Ram does not have EGR.
yes
There wasn't a 1998 Dodge Ram 1500 diesel.
A 1998 Ram did not have EGR.
Yes it should.
No.
Found the answer: The voltage regulator on a 98 Dodge RAM 1500 is NOT in the alternator. The alternator specifically states that the voltage is "Externally Regulated". In this vehicle the voltage regulator is built into the computer of the vehicle. To repair a bad voltage regulator in the computer you can either replace the computer or bypass the computer using about $50 in parts (ask your mechanic). Hope this helps.
The 1998 Ram does not have EGR.
The engine computer is the voltage regulator.
yes