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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1988 Chevrolet Engine Flooding Diagnosis
1988 Chevrolet Other Models
The owner reports that their 1988 Chevrolet truck is experiencing engine flooding and is running extremely rich. The vehicle is a 1/2 ton, 4-wheel dri...
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1996 Ford Thunderbird Power Loss Diagnosis
1996 Ford Thunderbird
The owner of a 1996 Ford Thunderbird reports a lack of power and an illuminated check engine light. After a diagnostic scan, they received fault codes...
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1997 Pontiac Sunfire Won't Start/Stall Diagnosed
1997 Pontiac Sunfire
The owner of a 1997 Pontiac Sunfire reported an intermittent starting issue where the vehicle would stall after starting. The problem appeared after r...
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2001 Dodge Dakota Stalling Issues Diagnosis
2001 Dodge Dakota
The owner reports that their 2001 Dodge Dakota stalls when coming to a complete stop, particularly when the engine is cold. Occasionally, it also stal...
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2000 Volvo V40 Fuel Injector Replacement Guide
2000 Volvo V40
The owner of a 2000 Volvo V40 is experiencing issues with the third cylinder misfiring, particularly noted when the engine is cold. After warming up, ...
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1999 Volvo S70 Hard Starts Diagnosis
1999 Volvo S70
The owner reports hard starting issues with their 1999 Volvo S70. Initially replaced the oxygen sensor and mass air flow meter after a P1142 code was ...
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1999 Isuzu Rodeo Loud Engine Noise Diagnosis
1999 Isuzu Rodeo
The owner reports that during a road trip, the engine suddenly became very loud, producing a heavy wind sound. This occurs when pressing the accelerat...
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1999 Jeep Laredo Coil Pack and Engine Performance Issues
1999 Jeep Laredo
The owner of a 1999 Jeep Laredo reports a rough idle and stalling issues. They have replaced the coil packs, spark plugs, fuel filter, and oxygen sens...
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2000 Dodge Stratus Rough Idle and Hitching Symptoms
2000 Dodge Stratus
The owner reports that the 2000 Dodge Stratus has a rough idle, feeling as if it skips. The issue smooths out between 10-45 mph but starts hitching be...
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2001 Dodge RAM 1500 P0302 Cylinder Misfire Diagnosis
2001 Dodge RAM 1500
The owner of a 2001 Dodge RAM 1500 with a 5.9L engine reported the check engine light illuminated after driving. A trusted mechanic diagnosed a '#2 cy...
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1999 Dodge Dakota Hard to Start and Power Loss
1997-2004 Dodge Dakota
The owner reports that their 1999 Dodge Dakota takes two or more attempts to start, with the engine turning over fine but lacking power during takeoff...
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2001 Audi A6 Oil Fumes and Check Engine Light Issue
2001 Audi A6
The owner of a 2001 Audi A6 with a biturbo engine reports oil fumes coming from the engine and a check engine light illuminated. Previous checks on th...
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2000 BMW 740 Oil Smoke on Startup Diagnosis
2000 BMW 740
The owner of a 2000 BMW 740 reports that the vehicle smokes heavily during startup, with oil found on the spark plugs and in the boot. This issue aros...
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1995 Chevy Corsica Fuel Injector Fuse Blows on Starting
1995 Chevrolet Corsica
The owner replaced the fuel pump on their 1995 Chevy Corsica, which now runs fine. However, the fuel injector fuse blows whenever they attempt to star...
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1996 Jeep Cherokee Hesitation and Clicking Noise
1996 Jeep Cherokee
The owner reports that when pressing the gas pedal to accelerate, the engine seems to try to stall, with the RPM needle jumping erratically. This occu...
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1988 Oldsmobile Delta 88 Engine Shutdown Issue
1988 Oldsmobile Delta 88
The owner of a 1988 Oldsmobile Delta 88 reports that the vehicle shuts off after running for a while. The engine stalls as if the key has been turned ...
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2003 Volkswagen Jetta Fuel Gauge and Stalling Issue
2003 Volkswagen Jetta
The owner reports that their 2003 Volkswagen Jetta sputters and occasionally stalls when the fuel gauge indicates below half a tank. Despite using the...
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1985 Oldsmobile Ciera No Injector Pulse Issue
1985 Oldsmobile Ciera
The owner of a 1985 Oldsmobile Ciera with a 2.5L TBI engine reported that after replacing a cracked cylinder head, the vehicle is experiencing no inje...
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