1992 Plymouth Voyager Base, AutomaticFACTORY OEM SERVICE PROCEDURE

Engine Controls - System/Component Tests - Gasoline: Introduction

NOTE: Testing procedures not covered in this article require a Chrysler Diagnostic Readout Box II (DRB-II). See appropriate G - TESTS W/ CODES article in the ENGINE PERFORMANCE Section.

Before testing individual components or systems, perform procedures in appropriate BASIC TESTING article in the ENGINE PERFORMANCE Section. Since many computer controlled and monitored components set a trouble code if they malfunction, also perform procedures in appropriate G - TESTS W/ CODES article in the ENGINE PERFORMANCE Section.

NOTE: Testing of individual components does not isolate possible shorts or opens in wiring harness of electronically controlled systems. Perform all voltage tests using a Digital Volt-Ohmmeter (DVOM) with a minimum 10-megohm input impedance unless otherwise instructed in procedure. Use an ohmmeter to isolate wiring harness shorts or opens.
Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.