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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2001 Dodge Ram Rough Idle and Stalling Diagnosis
2001 Dodge Ram
The owner has revived a 2001 Dodge Ram after it sat for two years. While it starts up fine, it idles roughly and displays a P0340 code indicating 'No ...
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No Crank No Start Diagnosis for 2008 Nissan Frontier
2008 Nissan Frontier
The owner reports that their 2008 Nissan Frontier with a 4.0L V6 automatic transmission is experiencing a no crank, no start condition. After replacin...
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Saturn Factory Alarm System and Starting Issue
unknown Saturn unknown
The owner of a Saturn vehicle is facing an issue where the factory-installed alarm system is non-functional, preventing the car from starting. They de...
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1990 Honda Accord Stalled While Driving
1990 Honda Accord
The owner reported that their 1990 Honda Accord stalled while driving. The maintenance required light was flashing, and after pulling over, they were ...
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1998 Chevy Lumina Rear Spark Plug Replacement Procedure
1998 Chevrolet Lumina
The owner is seeking guidance on replacing the rear spark plugs in a 1998 Chevy Lumina with a 3.1L engine. They have a Haynes Repair Manual that advis...
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2006 Honda Accord Moves Without Gas
2006 Honda Accord
The owner of a 2006 Honda Accord reports that the vehicle unexpectedly moves forward without pressing the gas pedal. This issue started recently and s...
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1996 Plymouth Voyager Won't Fire After Repair Attempts
1996 Plymouth Voyager
The owner reports that their 1996 Plymouth Voyager with a 3.3L engine was initially running fine but began stalling and then died completely. The vehi...
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2006 Saturn Ion Power Steering and ABS Light Issues
2006 Saturn Ion
The owner reports intermittent power steering failure in their 2006 Saturn Ion. The issue occurs randomly, with the power steering working properly af...
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Saturn SL1 EGR Valve and Vacuum Leak Diagnostics
1994 Saturn SL1
The vehicle owner reports an intermittent check engine light that activates occasionally. Upon diagnostic checks, the vehicle was found to have troubl...
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EGR Valve Code P0406 Diagnosis and Resolution
2005 Dodge Ram 1500
The owner of a 2005 Dodge Ram 1500 is experiencing an issue with the EGR valve. Despite having replaced the EGR valve, the check engine light remains ...
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Catalytic Converter Diagnosis for 2005 Saturn Ion
2005 Saturn Ion
The owner has a 2005 Saturn Ion with a 2.2L engine. After replacing the spark plugs, ignition coil pack, and ICM due to a PO300 multiple misfire code,...
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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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1993 Mazda Truck Won't Start - Electrical Issue Diagnosis
1993 Mazda Truck
The owner reports that their 1993 Mazda Truck won't start. They have checked various electrical components and fuses but found no indication of a shor...
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Intermittent Smoke on Startup in 1993 Ford Probe 2.0
1993 Ford Probe
The owner reports that their 1993 Ford Probe 2.0 smokes heavily on startup. They replaced the valve seals with cheaper aftermarket ones from eBay but ...
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1992 Toyota Corolla Metallic Grinding Noise Diagnosis
1992 Toyota Corolla
The owner reports that their 1992 Toyota Corolla has developed a metallic grinding noise that is most noticeable while idling in any gear (Park, Neutr...
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2002 Mitsubishi Galant Check Engine Light Diagnostics
2002 Mitsubishi Galant
The owner of a 2002 Mitsubishi Galant is frustrated with a recurring check engine light. The vehicle experienced stalling and has had multiple parts r...
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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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1999 Chevy Suburban RPM Drop at Steady Speed
1999 Chevy Suburban
The owner reports that their 1999 Chevy Suburban experiences a drop in RPMs to 1500 when driving at 40-45 MPH. This issue began after a recent fuel pu...
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