Symptom Diagnosis
WARNING: This page is about a different car, the 1995 Mercury Villager. However, it is still accessible from the selected car via links, so may be relevant.
Symptom checks cannot be used properly unless the problem occurs while the vehicle is being tested. To reduce diagnostic time, ensure steps in BASIC TESTING and TESTS W/CODES articles were performed before diagnosing a symptom. Symptom checks are listed in order of probability, ease of accomplishment, and accessibility. Symptoms available for diagnosis are as follows:
- BASIC TESTING - 3.0L
- TESTS W/CODES
- No Crank
- Hard Start/Long Crank
- Stall After Start
- No Start/Normal Crank
- Slow Return To Idle
- Idle Surge, Runs Rough Or Misses
- Fast Idle, Diesels/Runs On
- Low/Slow Idle, Stalls/Quits
- Stalls/Quits, Hesitation/Stumble
- Runs Rough/Misses
- Surges
- Backfires
- Loss Of Power
- Spark Knock
- Poor Fuel Economy
- Emissions Compliance
- Warning Indicator Lights
- High Oil Consumption
- Cooling System Runs Hot
- Cooling System Runs Cold
- Exhaust Smoke Or Smell
- Fuel Odor
- Engine Noise
- Vibration