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 GL, AutomaticFACTORY OEM SERVICE PROCEDURE
Vacuum Control Valve
- Disconnect vacuum hoses from vacuum control valve and connect a hand held vacuum pump to intake plenum vacuum port of control valve. See Figure .
- With engine less than 115°F (46°C), apply vacuum and ensure that vacuum is held. With a warm engine, apply vacuum with and ensure vacuum is released when valve opens at 115-129°F (46-54°C). Replace vacuum control valve if necessary.
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:
- • 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.