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.
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HOMESERVICE MANUALSJEEP1987COMANCHE LAREDO, 2.5 H, RWD, AUTOMATICREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCETESTING & DIAGNOSISFUEL INJECTION SYSTEM - TBIOPERATIONIDLE SPEED ACTUATOR (ISA) MOTOR
1987 Jeep Comanche Laredo, 2.5 H, RWD, Automatic
Idle Speed Actuator (ISA) Motor
1987 Jeep Comanche Laredo, 2.5 H, RWD, AutomaticSECTION Idle Speed Actuator (ISA) Motor
ISA motor acts as movable idle stop to change throttle stop angle. Both engine idle speed and deceleration throttle stop are set by ISA. ECU sends varying voltage outputs to control ISA motor, depending upon engine operating condition.
RENDER: 1.0x
NO RELATED
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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.