How Do I Know If My Distributor Cap And Rotors Are Bad

I have a 1994 LS400 and I get all of 12mpg and I was going through a normal tuneup checklist and need to know how to tell if my distributor cap and/or rotors are bad. Money, with a 4.0 liter V8, is tight and prevents me from going out and buying the replacements without need, so I need a method with which to find out if they are bad.

Answers for The Question

  1. gremlingts
  2. Tee
  3. 45 cal