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 111 (ENGINE CONTROLS - TESTS W/O CODES)SYMPTOMSWARNING INDICATOR LIGHTSSYMPTOM CHECKS
1991 Mercury Tracer Base, 4D Sedan, Automatic
Symptom Checks
1991 Mercury Tracer Base, 4D Sedan, AutomaticSECTION Symptom Checks
WARNING: This page is about a different car, the 1995 Lincoln Continental. However, it is still accessible from the selected car via links, so may be relevant.
Check the following items:
- If Malfunction Indicator Light (MIL) does not come on, go to step 4) of CIRCUIT TEST NB in the TESTS W/CODES - EEC-V article. If Transmission Control Indicator (TCIL) does not come on, go to step 6) of CIRCUIT TEST TB.
- If engine does not start, go to CIRCUIT TEST A in the TESTS W/CODES - EEC-V article.
- Perform QUICK TEST. See the TESTS W/CODES - EEC-V article. If code present, perform appropriate CIRCUIT TEST.
- If Malfunction Indicator Light (MIL) is always on, go to step of CIRCUIT TEST NB. If Transmission Control Indicator (TCIL) does not come on, go to step 8) of CIRCUIT TEST TB.
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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.