- Important Preliminary Checks

Diagnostic Chart:

Use the following tables when diagnosing a symptom complaint.
^ Hard Start
^ Surges/Chuggles
^ Lack of Power, Sluggishness, or Sponginess
^ Detonation/Spark Knock
^ Hesitation, Sag, Stumble
^ Cuts Out, Misses
^ Poor Fuel Economy
^ Rough, Unstable, or Incorrect Idle, Stalling
^ Dieseling, Run-On
^ Backfire