My husband's 1987 jeep cherokee dies while driving, has a 'chugging' idle, and doesn't want to start. We had the oxygen sensor (I think), radiator, starter, fuel filter, fuses, and spark plugs all replaced. Any suggestions? Thank you!

Replace the Ignition Control Module (igniter):

Zip Code Entry at PartsAmerica.com (http://www.partsamerica.com/ProductList.aspx?PartType=194&PTSet=A&SearchFor=Ignition+Module%2fControl+Unit)

Next, replace the coil:

Zip Code Entry at PartsAmerica.com (http://www.partsamerica.com/ProductList.aspx?PartType=190&PTSet=A&SearchFor=Coil)

Many AutoZone stores can test igniters and coils for free.