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.
Cruise Control Servo
Cruise control system is electronically controlled by PCM and vacuum operated. Controls are located on steering wheel and consist of 3 control switches. OFF/ON, SET/COAST and RESUME/ACCEL switches send signals to PCM. PCM controls vacuum and vent solenoids, located inside cruise control servo, when operating cruise control system. System will operate at 35-85 MPH. When brake pedal is depressed enough to activate brakelight switch, PCM will release vacuum and disengage cruise control operation.
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.