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 114 (ENGINE CONTROLS - TESTS W/O CODES)SYMPTOMSENGINE RUNS HOTSYMPTOM 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 Mark VIII. However, it is still accessible from the selected car via links, so may be relevant.
Check the following items:
- Perform QUICK TEST. See the TESTS W/CODES - EEC-IV article. If code is present, use appropriate CIRCUIT TEST.
- Check radiator electric cooling fan operation (if equipped). Start engine. Turn A/C on. Cooling fan should be on.
- If cooling fan does not operate, go to step 21) of CIRCUIT TEST XB in the TESTS W/CODES - EEC-IV article.
- Check base timing. See the ADJUSTMENTS article.
- Check gauges/senders.
- Check for brake drag.
- Check transmission for overheating.
- Check for core sand in engine block.
- Check for internal cylinder block and cylinder head leaks.
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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.