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 Chrysler Cirrus Engine Misfire and Tach Issues
1997 Chrysler Cirrus
The owner reports intermittent issues with the tachometer not working after a friend replaced the ignition coil. The car sometimes cuts off while driv...
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1996 Ford Ranger Engine Quit Diagnosis
1996 Ford Ranger
The owner of a 1996 Ford Ranger XLT SuperCab with a 2.3L engine and 159,000 miles reported that the vehicle sputtered and then quit while idling in li...
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Diagnosing Coolant Leak from Engine Block Freeze Plug
1999 Ford Explorer
The vehicle owner reports a small coolant leak on the right side of the engine, visible through the wheel well. They note a round indentation on the l...
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Power Window Will Not Go Up from Either Switch
2001 Oldsmobile Silhouette
The passenger side power window won't go up from either the passenger or driver's side controls, although both switches can lower it. The owner attemp...
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2000 Hyundai Accent Engine Performance Issue
2000 Hyundai Accent
The owner of a 2000 Hyundai Accent reports that the vehicle frequently revs up unexpectedly, causing erratic engine performance. This issue tends to o...
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No Spark Issue on 1967 Volkswagen Beetle
1967 Volkswagen Beetle
The owner reports that their 1967 Volkswagen Beetle is not starting despite attempts to troubleshoot. They have replaced the fuel pump, spark plugs, a...
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1997 BMW Z3 Fuel Pump Diagnostic Analysis
1997 BMW Z3
The owner of a 1997 BMW Z3 is experiencing engine performance issues, specifically stalling and misfiring after driving a few miles. They reported tha...
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2001 Isuzu Rodeo Random Misfire Diagnosis
2001 Isuzu Rodeo
The owner of a 2001 Isuzu Rodeo with a V6 engine and automatic transmission reports sporadic activation of the check engine light. Each occurrence tri...
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2000 Suzuki Grand Vitara White Smoke Diagnosis
2000 Suzuki Grand Vitara
The owner reports seeing white smoke coming from the tailpipe when starting the vehicle. They haven't performed a tune-up recently and are hopeful for...
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Harmonic Balancer Pulley Removal Techniques
1996 Dodge Neon
The owner of a 1996 Dodge Neon is trying to remove the harmonic balancer pulley but is facing difficulties. They have removed the large crankshaft bol...
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2002 BMW 525 Engine Smoke Diagnosis
2002 BMW 525
The owner reported that after an oil change, their 2002 BMW 525 began emitting a significant puff of white-blue smoke from the exhaust upon accelerati...
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2002 Volvo S60 Diesel Engine Overfueling Issue
2002 Volvo S60
The owner reports that their 2002 Volvo S60 diesel engine is producing black smoke, indicating overfueling. The vehicle has experienced this issue rec...
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1999 Toyota Corolla CEL On - P0441/P0446 Diagnosis
1999 Toyota Corolla
The check engine light has been on for several months, specifically since April. The vehicle owner received a diagnostic trouble code (DTC) P0441/P044...
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1999 Lincoln Town Car Firing Order and Cylinder Identification
1999 Lincoln Town Car
The owner is trying to identify the firing order and which cylinder is number 5 on their 1999 Lincoln Town Car. They have recently replaced the spark ...
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1999 Lincoln Continental Lean Codes Diagnosis
1999 Lincoln Continental
The owner of a 1999 Lincoln Continental reports a solid 'Service Engine Soon' light. After scanning, the codes P0171 and P0174 were retrieved, indicat...
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Dodge Neon Rough Idle and Misfire Diagnosis
2005 Dodge Neon
The owner reports that their 2005 Dodge Neon has a check engine light on and is running rough. The vehicle experiences misfiring and difficulties shif...
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1999 GMC Sierra Acceleration Problems and Diagnostics
1999 GMC Sierra
The owner reports that their 1999 GMC Sierra is experiencing acceleration issues. When the gas pedal is pressed, the vehicle sputters and backfires, b...
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2002 Subaru Impreza Engine Misfire Diagnosis
2002 Subaru Impreza
The owner reports that after driving the 2002 Subaru Impreza hard, the check engine light began flashing. A diagnostic scan revealed misfires in cylin...
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