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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2013 Toyota Yaris Starts, Doesn't Idle
2013 Toyota Yaris
The owner reports that the 2013 Toyota Yaris starts perfectly but dies after about 30 seconds. They have recently acquired the vehicle, which had a pr...
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1998 Pontiac Transport Engine Turns Over, No Start
1998 Pontiac Transport
The owner reports that the engine turns over without starting. The battery is strong, and the engine fires well, indicating a good ignition system. Ho...
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2001 Hyundai Accent Hard Start and Rough Idle Diagnosis
2001 Hyundai Accent
The owner reports that the 2001 Hyundai Accent has difficulty starting and exhibits a rough idle when cold. The problem occurs primarily in the mornin...
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2008 Saturn Vue vs. 2008 Dodge Caliber Comparison
2008 Saturn Vue
The vehicle owner is considering purchasing either a 2008 Saturn Vue or a 2008 Dodge Caliber. They prefer the Vue but are concerned about slow acceler...
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1987 Honda Accord White Smoke from Exhaust Issue
1987 Honda Accord
The owner reports that their 1987 Honda Accord starts emitting white smoke from the exhaust after 2-3 minutes of idling. They collected what appears t...
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Coolant Contamination in Oil - 2001 Chrysler Concorde
2001 Chrysler Concorde
The owner reports that while driving, the power steering failed, the brakes became hard, and smoke began to emerge from the engine. Upon inspection, m...
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BMW 525i Won't Start After Fuel Pump Relay Replacement
unknown BMW 525i
The owner describes that their BMW 525i won't start despite replacing the fuel pump relay. They have checked the fuel pump and confirmed that it has p...
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Intermittent Check Engine Light - P0125, P0141, P1811 Codes
1998 Oldsmobile Intrigue GLS
The owner of a 1998 Oldsmobile Intrigue GLS with 167,000 miles reports that the check engine light illuminated. After taking the vehicle to Firestone ...
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P2432 Code Diagnosis for 2007 Saturn Ion2
2007 Saturn Ion2
The owner of a 2007 Saturn Ion2 with a 2.2L engine reports a persistent check engine light due to a P2432 code indicating a secondary air injection sy...
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2001 Daewoo Nubira Head Valve Replacement Procedure
2001 Daewoo Nubira
The owner has already removed the cylinder head from the 2001 Daewoo Nubira and possesses a valve spring compressor. However, they are struggling to a...
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Engine Valve Noise Diagnosis on 2003 Daihatsu Sirion
2003 Daihatsu Sirion
The owner of a 2003 Daihatsu Sirion is experiencing engine valve noise that diminishes after the engine warms up. The vehicle has only 47,000 miles an...
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Hesitation during acceleration on 65 Chevy Impala
1965 Chevrolet Impala
The owner has a 1965 Chevy Impala with a 283 engine and a Rochester 2G carburetor. After a recent carb rebuild, the vehicle runs perfectly at idle and...
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Brake System Failure with Hard Pedal and Smoke
1995 Buick Regal
The owner of a 1995 Buick Regal reports that after replacing the master cylinder, ABS, rotors, and brake cylinders, the brake pedal becomes hard, and ...
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2004 Mitsubishi Endeavor Acceleration Issues
2004 Mitsubishi Endeavor
The owner reports that their 2004 Mitsubishi Endeavor will only accelerate to 10 mph. They have already replaced the throttle body and accelerator ped...
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2002 Chevrolet Silverado Died on the Road Diagnosis
2002 Chevrolet Silverado
The owner reported that their 2002 Chevrolet Silverado stalled unexpectedly while driving. After checking, the fuel pump was found to have 60 PSI pres...
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Rough Idle Diagnosis on 2007 Dodge Charger 2.7 V6
2007 Dodge Charger
The owner reports that their 2007 Dodge Charger with a 2.7L V6 engine developed an extremely rough idle after warming up. Initially, the engine idles ...
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EGR Valve Identification for 1999 Pontiac Grand Am SE
1999 Pontiac Grand Am SE
The vehicle owner has recently replaced two broken valves on their 1999 Pontiac Grand Am SE with a 2.4L engine. After reassembling the engine, they di...
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Brake Issues in 1984 Toyota Van LE
1984 Toyota Van LE
The owner of a 1984 Toyota Van LE reports persistent brake issues despite several repairs. The front brake pads and rear shoes have been replaced, and...
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Frequently Asked Questions
What are the most common engine problems?
The most common engine problems include starting issues, rough idle, overheating, oil pressure problems, and exhaust smoke. Our database contains detailed analysis for each of these issues.
How do I diagnose engine starting problems?
Engine starting problems can be caused by battery issues, starter problems, fuel delivery issues, or ignition system faults. Check our starting issues section for step-by-step diagnostic procedures.
What causes engine overheating?
Engine overheating can be caused by coolant leaks, thermostat failure, water pump problems, or radiator issues. Our overheating analysis cases provide detailed diagnostic solutions.