This article is a step by step testing guide to diagnose and troubleshoot a misfire condition and/or a bad Ignition Coil Pack on the 99, 00, 01 Chrysler (Dodge and Plymouth) mini-vans with a 3.3L V6 engine. There are two other Ignition Coil Pack Test articles for 3.3L, 3.8L Chrysler vehicles (1990-2008) at: Chrysler 3.3L, 3.8L Index of Articles. This first section (of this four part article) contains a lot of important information that will help you to successfully diagnose the Coil Pack on your Chrysler (or Dodge and Plymouth) mini-van. Symptoms Of A Bad Chrysler Coil Pack When the ignition coil pack or the spark plug wires are bad, your Chrysler (or Dodge or Eagle or Plymouth) mini-van will display one or more of the following symptoms: The car idles rough and wants to stall (die). When you accelerate the car, it has no power. Really bad gas mileage.