1990 Chevrolet Caprice Base, 4.3 Z, 4L60/MD8FACTORY OEM SERVICE PROCEDURE

Mode Selector Lever/Dial: Notes

NOTE: Several models are equipped with push button controls instead of a selector lever. The following descriptions apply equally to push button systems when the indicated setting is chosen.

Several settings are possible on the control panel to provide the comfort level desired. Upper lever is mode selector lever. On push button control models, push buttons replace this lever. See Figure and Figure . On dial selector types, rotating dial from left to right selects mode function for these types. Available mode settings are as follows:

Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

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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.

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