1990 Saab 9000 CD, AutomaticFACTORY OEM SERVICE PROCEDURE

Idle Speed & Ignition Timing

Ensure idle speed and ignition timing are set to specification. For adjustment procedures, see ADJUSTMENTS article.

IDLE SPEED SPECIFICATIONS

Application RPM
900 Turbo 800-900
All Other Models 775-925
IGNITION TIMING (Degrees BTDC @ RPM)

Application Specification
900 (1) 20 @ 2000
900S & 9000S 14 @ 850
900 Turbo & 9000 Turbo (2) 16 @ 850
(1) Vacuum advance hose disconnected.
(2) Timing is not adjustable on 9000 with DIS.
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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