1982 Plymouth Sapporo Automatic TransFACTORY OEM SERVICE PROCEDURE

Thermostatic Air Cleaner: Testing

  1. After engine has cooled down, start engine. Check position of air control valve and watch it as engine warms up. It should function as described under "Operation". If not, replace air cleaner snorkel and/or casing.
  2. If equipped with vacuum motor, apply 15 in. Hg to motor (hose disconnected) while engine is cold. Air valve should be up (heat on). If not, or if valve goes down immediately, a vacuum leak or defective motor is indicated. Replace assembly.
    Fig 1: Chrysler Corp. Imports Thermostatic Air Cleaner System
    G09315586Courtesy of CHRYSLER GROUP, LLC
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When to See a Mechanic

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

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