Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1989 Saab 900 SPGFACTORY OEM SERVICE PROCEDURE
System/Component Tests: Dashpot
- Warm engine to normal operating temperature. Connect tachometer. Adjust idle speed to specification. See ADJUSTMENTS article in this section.
- Increase engine speed to 3000 RPM. Release throttle, noting time between release of throttle and return to idle. Deceleration time should be 3-5 seconds from contact of plunger.
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:
- • 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.