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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1997-2000 Subaru Impreza AWD Won't Start After Battery Issues
1997-2000 Subaru Impreza
The owner reported that the Subaru Impreza would not start after the battery was flat for a month while undergoing bodywork repairs, including replaci...
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1995 Dodge Intrepid Steering Rack Failure Diagnosis
1995 Dodge Intrepid
The owner of a 1995 Dodge Intrepid reports a steering problem where the steering wheel can be turned significantly without any corresponding movement ...
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2004 Kia Rio Lean Condition Diagnosis
2004 Kia Rio
The owner recently purchased a 2004 Kia Rio for $2300, which has the check engine light illuminated. Initial scans indicated a lean fuel mixture, rand...
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1995 Ford Taurus No Start Diagnosis
1995 Ford Taurus
The owner of the 1995 Ford Taurus Wagon GL reports that the vehicle is not starting. Despite having replaced the distributor cap, rotor, and ignition ...
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Intermittent Power Loss with P1399 Code
unknown Honda unknown
The vehicle owner reported that their Honda started sputtering and lacked power when pressing the gas pedal, especially during hard acceleration. This...
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1998 Honda Accord No Power with Engine Miss
1998 Honda Accord
The owner describes a 1998 Honda Accord with a 4-cylinder engine that has been running poorly, often unable to drive. They previously replaced the Idl...
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Fuel Gauge and Injector Power Testing on 96 GMC Jimmy
1996 GMC Jimmy
The owner reports intermittent stalling issues with the vehicle, primarily at idle and during slowdowns. The check engine light remains solid, but no ...
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2000 Saturn Sedan No Fuel Issue Diagnosis
2000 Saturn Sedan
The owner reports that their 2000 Saturn Sedan is not starting. The fuel pump can be heard running, but there is no fuel pressure. They have checked t...
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1998 Chevy Lumina EGR Valve Diagnosis
1998 Chevrolet Lumina
The owner reports that the service engine light intermittently comes on for about a week and then turns off for a week. After testing at Autozone, the...
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2001 Nissan Altima Intermittent Stalling and Misfire
2001 Nissan Altima
The owner reports that while idling, the engine RPM drops to a level where it feels like it might stall. The vehicle accelerates well initially, but w...
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1999 Chrysler Concorde Stalling Issue Diagnosis
1999 Chrysler Concorde
The owner's 1999 Chrysler Concorde starts without issues but stalls after about 20 minutes of driving. Symptoms include jerking movements before cutti...
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2007 Pontiac Grand Prix Power Steering Issues
2007 Pontiac Grand Prix
The owner reports a fluid leak related to the power steering system. After a full flush and repairs, the steering remains tight without acceleration, ...
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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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1999 Plymouth Voyager No Spark Diagnosis
1999 Plymouth Voyager
A 1999 Plymouth Voyager suddenly died while accelerating from a stop. The owner noted that the engine has good power and cranks without issue but show...
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1999 Saturn SL2 Engine Stalls
1999 Saturn SL2
The owner reports that the 1999 Saturn SL2 experiences engine stalling after running for about five minutes. The engine runs fine when it is warmed up...
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2000 Ford Contour Rough Idle and Stalling Diagnosis
2000 Ford Contour
The owner reports that their 2000 Ford Contour with a 2.0L engine is experiencing rough idling, especially when the A/C is on, and it stalls under ful...
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1996 Acura TL Engine Compression Failure Diagnosis
1996 Acura TL
The owner of a 1996 Acura TL reports a serious engine issue, stating that there is no compression in the engine. They have noted that the vehicle was ...
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1998 Honda Accord Check Engine Light Diagnosis
1998 Honda Accord
The owner of a 1998 Honda Accord reports that the check engine light is illuminated. After a recent starter replacement, they suspect a vacuum line ma...
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