Engine System Fault Analysis Cases
Comprehensive collection of engine system fault analysis cases. Get detailed diagnostic solutions for starting issues, performance problems, ignition system faults, and cooling system failures.
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1997 Chevy 1500 Truck Hesitation and Jumping Issues
1997 Chevrolet 1500
The owner describes a 1997 Chevy 1500 truck that initially had a timing gear issue, which was fixed. After returning from a trip, the truck started an...
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1996 Mazda Protege Rough Idling When Engine is Warm
1996 Mazda Protege
The owner reports that their 1996 Mazda Protege experiences rough idling when the engine is warm. This issue is present regardless of whether the tran...
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2000 Ford Explorer Hard Starting Investigation
2000 Ford Explorer
The owner reports that the 2000 Ford Explorer starts fine in the morning but has difficulty starting after being driven. It cranks but doesn't start i...
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1998 Chevy Cheyenne Truck Won't Start in Cold Weather
1998 Chevrolet Cheyenne
The owner reports that their 1998 Chevy Cheyenne truck has developed a starting issue over the past year. The truck often fails to start when it's col...
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2000 Dodge Dakota Engine Dies Intermittently
2000 Dodge Dakota
The owner reports that while driving at 65 mph on the interstate, the engine dies suddenly without warning. After pulling over, the vehicle will not r...
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Jaguar XJS Loss of Power and Stalling Issues
1988 Jaguar XJS
The owner of a 1988 Jaguar XJS convertible reports a significant loss of power during a recent 10-mile trip, struggling to maintain speed, particularl...
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2000 Pontiac Grand Prix GTP Stalling Issue Analysis
2000 Pontiac Grand Prix GTP
The owner reports that their 2000 Pontiac Grand Prix GTP stalls intermittently, especially in summer. The issue began after turning on the AC, causing...
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1996 Hyundai Elantra Spark Plug Fouling Diagnosis
1996 Hyundai Elantra
The owner of a 1996 Hyundai Elantra is experiencing spark plug fouling issues which have led to decreased engine performance. Symptoms include rough i...
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1997 Ford F-150 Black Smoke at Idle Diagnosis
1997 Ford F-150
The owner recently purchased a 1997 Ford F-150 with a 4.6L V8 engine and noticed a faint amount of black smoke at idle. The vehicle has had its cataly...
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1998 Mazda Millenia Check Engine Light - Misfire in Cyl #5
1998 Mazda Millenia
The owner reports that the check engine light has illuminated, and the engine is shaking. They have replaced the spark plugs, ignition wires, rotor, c...
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2002 Toyota Celica Intermittent Misfire Diagnosis
2002 Toyota Celica
The owner recently purchased a 2002 Toyota Celica equipped with a VVT-i engine and is experiencing a severe misfire. They noted that disconnecting any...
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1988 Ford Thunderbird Engine Won't Start Diagnostics
1988 Ford Thunderbird
The owner reports that their 1988 Ford Thunderbird will not start. When attempting to crank the engine, there is no response, although the test light ...
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1996 GMC Jimmy Truck Won't Start - Fuel System Check
1996 GMC Jimmy
The owner reports that the 1996 GMC Jimmy truck cranks over but doesn't start. The engine has power and turns over, but it fails to catch. The owner s...
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1999 Dodge Caravan High Idle Speed on Start Up
1999 Dodge Caravan
The owner reports that after changing the spark plugs on their 1999 Dodge Grand Caravan with a 3.3L engine, they are experiencing a high idle speed, r...
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Intermittent Stalling in Rainy Conditions
1999 Cadillac DeVille
The owner reports that their 1999 Cadillac DeVille stalls at stop signs when it rains heavily, particularly when in gear and the brake is applied. The...
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1995 Mitsubishi Galant Engine Won't Start
1995 Mitsubishi Galant
The owner reports that the vehicle cut off while approaching a stop sign and would not restart. Dashboard lights indicate power is present, and the al...
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1995 Cadillac STS Won't Start After Intake Gasket Replacement
1995 Cadillac STS
The owner replaced a broken starter and a dead battery in their 1995 Cadillac STS. After getting the engine to run, it began to backfire and idle roug...
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2000 Mitsubishi Eclipse Timing Belt Issue Analysis
2000 Mitsubishi Eclipse GT
The vehicle owner reported a broken timing belt issue on their 2000 Mitsubishi Eclipse GT with a 3.0L engine. They are concerned about potential engin...
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Page 20 of 47 - Showing automotive fault analysis cases