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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Engine Hesitation and Misfire Diagnosis on 2005 Ford Escape
2005 Ford Escape
The owner of a 2005 Ford Escape reports experiencing hesitation while driving in overdrive, particularly after the engine has warmed up. The check eng...
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2002 Subaru WRX A/C Stops Working After Initial Cool
2002 Subaru WRX
The owner of a 2002 Subaru WRX Turbo 4-cylinder reports that after having the A/C system checked and tested, the A/C blows cold air for about 30 secon...
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2000 Pontiac Sunfire Won't Start After Running Out of Gas
2000 Pontiac Sunfire
The owner of a 2000 Pontiac Sunfire reported that after running out of gas, the vehicle fails to start. They attempted to prime the fuel system by tur...
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1997 Ford Taurus Intermittent Stalling and No Start
1997 Ford Taurus
The owner's wife was driving the 1997 Ford Taurus when the car began to slow down and eventually shut off while on the highway. After pulling over, th...
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1997 BMW 540i Engine Shakes and Misfires at Idle
1997 BMW 540i
The owner reports that their 1997 BMW 540i runs roughly at idle and occasionally experiences the same issue at highway speeds. The check engine light ...
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Intermittent Stalling and Backfiring during Shifts
1992 Chevrolet S10
The owner of a 1992 Chevy S10 with a 2.5L engine reports intermittent stalling and backfiring during transmission shifts, particularly from 1st to 2nd...
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1995 Chevy Blazer Won't Start After Distributor Cap Change
1995 Chevy Blazer
The owner of a 1995 Chevy Blazer with a 4.3L V6 engine is experiencing a no-start condition after replacing the distributor cap. They confirmed good s...
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2002 Dodge Truck Starting Problem Diagnosis
2002 Dodge Truck
The owner reports an intermittent starting issue with their 2002 Dodge Truck. Sometimes the engine starts normally, while other times it only produces...
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2002 Mazda B2300 A/C Cycling Issue Diagnosis
2002 Mazda B2300
The owner reports that the air conditioning unit on their 2002 Mazda B2300 is cycling rapidly on and off when in drive, while it operates normally in ...
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2000 Dodge Caravan Runs Rough with Flashing Odometer
2000 Dodge Caravan
The owner reports that the 2000 Dodge Caravan runs smoothly when cold but starts to run roughly after warming up. The oil light illuminates despite th...
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1978 Chevy Camaro Low Oil Pressure Issue
1978 Chevrolet Camaro
The owner recently built a 350 engine for their 1978 Chevy Camaro and is experiencing low oil pressure issues. Initially, the oil pressure gauge reads...
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1993 Oldsmobile Achieva Engine Performance Issues
1993 Oldsmobile Achieva
The owner reported that after replacing the cylinder head (GMC#24573087 on GMC#24574468), the engine began to run poorly. The first and third cylinder...
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Starter Relay Location for 2008 Dodge Avenger
2008 Dodge Avenger
The owner is trying to locate the starter relay for their 2008 Dodge Avenger. They believe that a conventional starter relay should exist but are havi...
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Intermittent Stalling and Power Loss on Acceleration
1997 Chevrolet C/K 1500
The owner reports that their 1997 Chevrolet C/K 1500 experiences intermittent stalling and power loss when accelerating, especially going uphill. On s...
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2005 Volkswagen Golf Black Smoke Diagnosis
2005 Volkswagen Golf
The owner reports excessive black smoke coming from the exhaust when accelerating, both in park mode and while driving. This issue became apparent aft...
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Starter Failure Diagnosis on 2003 GMC Sierra
2003 GMC Sierra
The vehicle owner reports a starter failure on their 2003 GMC Sierra. Initially, the wire from the solenoid to the starter burnt off, prompting a star...
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2005 Mazda 6 Engine Redlines When Accelerating
2005 Mazda 6
The owner reports that the engine of their 2005 Mazda 6 redlines excessively during acceleration, indicating a potential transmission issue. The probl...
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Intermittent Engine Stalling in Gear
1993 Oldsmobile Cutlass Ciera
The owner reports that the engine of their 1993 Oldsmobile Cutlass Ciera runs smoothly in park but stalls when put into gear. The stalling occurs inte...
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