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 MANUALSMITSUBISHI1991PRECIS L4-1468CC 1.5L SOHCREPAIR AND DIAGNOSISENGINE, COOLING AND EXHAUSTCOOLING SYSTEMTESTING AND INSPECTIONINITIAL INSPECTION AND DIAGNOSTIC OVERVIEW
1991 Mitsubishi Precis L4-1468cc 1.5L SOHC
Initial Inspection and Diagnostic Overview
1991 Mitsubishi Precis L4-1468cc 1.5L SOHCSECTION Initial Inspection and Diagnostic Overview
FAN MOTOR DOES NOT OPERATE WHEN COOLANT TEMPERATURE IS HIGH
1. Burned out fusible link.
2. Poor electrical connection or break in harness.
3. Defective relay.
4. Defective thermo sensor.
5. Defective motor.
FAN MOTOR OPERATES WHEN COOLANT TEMPERATURE IS LOW
1. Defective thermo sensor.
2. Short circuit to body in harness.
3. Defective relay.
1. Burned out fusible link.
2. Poor electrical connection or break in harness.
3. Defective relay.
4. Defective thermo sensor.
5. Defective motor.
FAN MOTOR OPERATES WHEN COOLANT TEMPERATURE IS LOW
1. Defective thermo sensor.
2. Short circuit to body in harness.
3. Defective relay.
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.