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 Ford Probe GTFACTORY OEM SERVICE PROCEDURE
OVERBOOST Warning Chime Check
- Start the engine and run at 2000 RPM. Remove the air filter upper housing. Push measuring plate of vane airflow meter to fully open position.
- Ensure warning buzzer sounds and engine speed drops or engine stalls. If not, see appropriate article in COMPUTERIZED ENGINE CONTROL section. Turn off engine and replace air filter upper housing.
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:
- • 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.
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