1988 Chevrolet Spectrum ExpressFACTORY OEM SERVICE PROCEDURE

Electrical Component Locator: Miscellaneous

MISCELLANEOUS LOCATION

Component Location
A/C-Heater Blower Motor Resistor On driver's side of A/C-heater blower motor housing. See Figure .
Cruise Control Servo On left rear corner of engine compartment.
Diagnostic (ALDL) Connector Under right side of dash, above A/C-heater blower motor. See Figure .
Diode Boxes
Diode Box F27 On driver's kick panel.
Diode Box M3 Under right side of dash, above A/C-heater blower motor, near Diagnostic Connector.
EFE Heater Underneath carburetor.
Idle Air Control Valve On side of throttle body. See Figure .
Radio Suppression Filter On right front corner of engine compartment.
Factory Service Tools

Use the Manual With the Right Hardware

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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.