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 MANUALSMERCURY1991TRACER BASE, 4D SEDAN, AUTOMATICREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 162 (ENGINE CONTROLS - SYSTEM & COMPONENT TESTS - EEC-V)
1991 Mercury Tracer Base, 4D Sedan, Automatic
Section 162 (Engine Controls - System & Component Tests - EEC-V)
1991 Mercury Tracer Base, 4D Sedan, AutomaticSECTION Section 162 (Engine Controls - System & Component Tests - EEC-V)
WARNING: This page does not describe the selected car, but rather 35 other vehicles, including the 1996 Mercury Tracer, 1996 Mercury Sable, 1996 Mercury Mystique, 1996 Mercury Grand Marquis, and 1996 Mercury Cougar. However, it is still accessible from the selected car via links, so may be relevant.
- Introduction
- Computerized Engine Controls
- Engine Sensors & Switches
- Notes
- Air Conditioning Pressure Switch
- Brake On/Off Switch
- Camshaft Position Sensor (4.0L & 5.0L)
- Clutch Pedal Position Switch
- Engine Coolant Temperature Sensor
- Heated Oxygen Sensor
- Inertia Fuel Shutoff Switch
- Intake Air Temperature Sensor
- Knock Sensor
- Mass Airflow Sensor
- Park/Neutral Position Switch
- Power Steering Pressure Switch
- Throttle Position Sensor
- Transmission Range Sensor
- Vehicle Speed Sensor
- Modules, Motors, Relays & Solenoids
- Fuel System
- Idle Control System
- Ignition System
- Emission Systems & Sub-Systems
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.