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HOMESERVICE MANUALSCHEVROLET1987STEP VAN P20, 7.4 W, AUTOMATIC, 400/M40REPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 34 (A/C-HEATER SYSTEM - MANUAL)OPERATIONMODE SELECTOR LEVER/DIAL(ALL MODELS EXCEPT NOVA)
1987 Chevrolet Step Van P20, 7.4 W, Automatic, 400/M40

(All Models Except Nova)

1987 Chevrolet Step Van P20, 7.4 W, Automatic, 400/M40SECTION (All Models Except Nova)
WARNING: This page does not describe the selected car, but rather 38 other vehicles, including the 1987 Pontiac Sunbird, 1987 Pontiac Safari, 1987 Pontiac Grand Prix, 1987 Pontiac Grand Am, and 1987 Pontiac Firebird. However, it is still accessible from the selected car via links, so may be relevant.
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:

RENDER: 1.0x

NO RELATED

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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.