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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSFORD1990RANGER 4WD L4-140 2.3L SOHCREPAIR AND DIAGNOSISCRUISE CONTROLDESCRIPTION AND OPERATION
1990 Ford Ranger 4WD L4-140 2.3L SOHC
Cruise Control: Description and Operation
1990 Ford Ranger 4WD L4-140 2.3L SOHCSECTION Description and Operation
DESCRIPTION
The speed control system is composed of On-Off, Set-Acc, Coast and Resume (if equipped) switches. The system contains vacuum hoses, servo (throttle actuator) assembly, speed sensor, amplifier, check valve assembly, and depending on model and year, a clutch switch, stop light switch or vacuum dump valve. Models with resume, also use a vacuum reserve tank.
OPERATION
To operate speed control system, engine must be running and vehicle speed must exceed 30 mph. When On-Off switch is actuated, the system is ready to accept a set speed signal. With On switch engaged, vehicle speed exceeding 30 mph and stable, depress the Set-Acc button. The speed now set will be maintained until brake pedal is depressed, system is turned off or a new speed has been set.
The speed control system is composed of On-Off, Set-Acc, Coast and Resume (if equipped) switches. The system contains vacuum hoses, servo (throttle actuator) assembly, speed sensor, amplifier, check valve assembly, and depending on model and year, a clutch switch, stop light switch or vacuum dump valve. Models with resume, also use a vacuum reserve tank.
OPERATION
To operate speed control system, engine must be running and vehicle speed must exceed 30 mph. When On-Off switch is actuated, the system is ready to accept a set speed signal. With On switch engaged, vehicle speed exceeding 30 mph and stable, depress the Set-Acc button. The speed now set will be maintained until brake pedal is depressed, system is turned off or a new speed has been set.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.