Air/Fuel mixture too rich, cylinder misfire, or external damage to the converter.
one
Two.
3
2
2 much money
This model comes with 2.
Yes, but not correctly if after 1996.Yes, but not correctly if after 1996.
If built after 1996, then yes.
It is illegal to remove a catalytic converter on any vehicle and carries a hefty fine if you are caught.
there are two a front and back
There are not two catalytic converters. Working towards the muffler from the flange, you have a RESONATOR, a CATALYTIC CONVERTER and finally a MUFFLER.
On the 4.0 liter OHV - V6 - I believe there are ( 3 ) on a 1996 Ford Explorer 2 that are used for the air / fuel mixture that are before the catalytic converters ( upstream ) and 1 after the catalytic converters ( downstream ) that is used as a catalyst monitor