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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91 Chevy Caprice Starts Then Dies - Fuel System Issue
1991 Chevrolet Caprice
The owner reports that their 1991 Chevy Caprice starts but then dies shortly after. They have already checked and replaced the fuel filter, inspected ...
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2000 Oldsmobile Alero Cranks But Won't Start
2000 Oldsmobile Alero
The owner reports that their 2000 Oldsmobile Alero cranks but won't start. Initially, the car started after following reprogramming instructions for t...
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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 Acura TL Car Start But Stall Diagnosis
1999 Acura TL
The owner reports that the 1999 Acura TL starts but stalls shortly after. The idling speed is between 1500-2300 RPM when cold, stabilizing just under ...
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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 Chevrolet Corsica Cranks But Won't Start
1996 Chevrolet Corsica
The owner reports that their 1996 Chevrolet Corsica cranks but will not start. The vehicle does start with starting fluid and can be kept running with...
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2005 Kia Sedona Cranking But Not Firing Issue
2005 Kia Sedona
The owner reports that the 2005 Kia Sedona is cranking but not firing. Fuel is confirmed to be reaching the fuel lines at the correct pressure, and th...
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1997 GMC Yukon Fuel Pressure Diagnosis
1997 GMC Yukon
The owner of a 1997 GMC Yukon reported a crank but no start condition. Upon checking the fuel pressure, it was found to rise to 61 PSI with the key in...
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2000 Chevy Malibu EGR Valve Position Sensor Issue
2000 Chevrolet Malibu
The owner has a 2000 Chevy Malibu experiencing an EGR valve circuit malfunction, indicated by the persistent P0405 code. After replacing the EGR valve...
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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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1999 VW Jetta Stalling on Acceleration
1999 Volkswagen Jetta
The owner of a 1999 Volkswagen Jetta reports stalling during acceleration, particularly noticeable between 1,000 and 2,000 RPM. This issue has progres...
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1998 Saturn SL1 Check Engine Code P0446 Diagnosis
1998 Saturn SL1
The owner reported a check engine light illuminated with code P0446, indicating a potential issue in the evaporative emissions system. The vehicle run...
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1996 Chevy Blazer P0440 Evap Emission System Issue
1996 Chevrolet Blazer
The owner reports that after filling up the gas tank, their 1996 Chevy Blazer died a few miles down the road. After towing it home and adding starting...
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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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2007 Suzuki Forenza Engine and Transmission Issue
2007 Suzuki Forenza
The owner is performing an engine swap on their 2007 Suzuki Forenza and installed an engine that came from a manual transmission vehicle. After ensuri...
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2009 Jeep Laredo No Crank Condition
2009 Jeep Laredo
The owner reports that their 2009 Jeep Laredo does not crank or start at all. There is a warning light resembling two lightning bolts on the dashboard...
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1987 Honda Accord Carbureted Misfire and No Start Issues
1987 Honda Accord
The owner has a 1987 Honda Accord with a carbureted engine that started misfiring occasionally while driving. This issue progressed to misfiring even ...
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1989 Cadillac Fleetwood FWD 4.5L Starting Issue
1989 Cadillac Fleetwood
The owner reports that when attempting to start the car, the ignition turns on but the starter only clicks once, and the interior lights dim. After re...
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