1997 Pontiac Sunrunner RWD, AutomaticFACTORY OEM SERVICE PROCEDURE

Repair and Diagnosis

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RPO Codes RPO Code Description (Codes U11-Us9) Steering Map - Steering, Suspension, Wheel Alignment, Wheels & Tires Wheel Alignment Theory & Operation - General Information Trouble Shooting - Manual Transmission - General Information Heating, Ventilation & A/C (HVAC) General Servicing A/C Compressor Refrigerant Oil Checking A/C Compressor Servicing A/C System General Servicing Cabin Air Filter (Special Applications) - General Information HVAC Control Systems A/C-Heater System - Manual Heater System Maintenance Procedures Maintenance Information Restraints Air Bag, SRS Air Bag Restraint System Steering Manual Steering Steering System - Manual Recirculating Ball Steering System - Power Recirculating Ball Power Steering Steering System - Manual Recirculating Ball Steering System - Power Recirculating Ball Steering Column Suspension Front Suspension Suspension - Front Rear Suspension Suspension - Rear Wheel Alignment Specifications & Procedures Transmission Automatic Trans Automatic Transmission Diagnosis - Aw03-72LE & Aw03-73LE Automatic Transmission Diagnosis - ECC 3-Speed Automatic Transmission Diagnosis & Overhaul - 3L30 Removal & Installation - A/T Servicing - A/T Shift Interlock Systems Clutches Automatic Transmission Hydraulic Diagrams - 3L30 Manual Trans Manual Transmission Overhaul - M59 5-Speed Servicing - M/T Transfer Case - Overhaul

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:

  • 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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