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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Steering Column and Ignition System Diagnosis
1997 Pontiac Grand Am
The vehicle owner replaced the entire steering column on a 1997 Pontiac Grand Am due to ignition issues where the key could turn the ignition without ...
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2002 Mitsubishi Galant Stumbling and Rough Idle Diagnosis
2002 Mitsubishi Galant
The owner describes that when the car is first started, it runs smoothly for about two minutes before beginning to stumble and run rough, as if it's m...
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Lack of Starting Power in 1995 Hyundai Elantra
1995 Hyundai Elantra
The owner reports that while running errands, bluish smoke with a metallic smell came from the exhaust. After stopping for 10 minutes, the car wouldn'...
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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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Intermittent Stalling Issue on 1991 Honda Civic
1991 Honda Civic
The owner of a 1991 Honda Civic Hatchback is experiencing intermittent stalling issues. The check engine light (CEL) was previously triggered but has ...
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Timing Issue with 1995 VW Passat GLS 2.0
1995 Volkswagen Passat GLS
The owner has a 1995 VW Passat GLS with a 2.0L engine that runs well but stumbles between 2500 to 3000 RPMs. They noticed the timing mark is about hal...
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1995 Audi Cabriolet Driver Side Power Window Issue
1995 Audi Cabriolet
The driver side power window of a 1995 Audi Cabriolet is stuck in the down position and will not go up. The owner attempted various methods to fix the...
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1989 Nissan Sentra Won't Start or Cuts Off
1989 Nissan Sentra
The owner reports that their 1989 Nissan Sentra won't start, and if it does, it cuts off unexpectedly while driving. The problem seems intermittent, o...
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1979 Jeep CJ5 Won't Turn Over
1979 Jeep CJ5
The owner of a 1979 Jeep CJ5 reports that after getting the vehicle stuck in clay mud, they replaced the dead battery and reattached a slipped serpent...
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1999 Saturn SC1 Intermittent Starting Issue
1999 Saturn SC1
The owner recently acquired a clean 1999 Saturn SC1 and is experiencing intermittent starting issues. The car fails to start approximately once every ...
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1996 Chrysler Concorde High Idle and Sensor Issues
1996 Chrysler Concorde
The owner reports that their 1996 Chrysler Concorde is idling at an excessively high RPM of 2500. They recently replaced the MAP and TPS sensors but s...
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1997 Jeep Cherokee Won't Start - No Spark or Gauge Activity
1997 Jeep Cherokee
The vehicle owner reports that their 1997 Jeep Cherokee was functioning well yesterday, but this morning it wouldn't start. The engine turns over, but...
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1999 Dodge Truck Rough Idle Diagnosis
1999 Dodge Truck
The owner reports that their 1999 Dodge Truck has a rough idle that feels like it's missing, but no trouble codes are being thrown. They have replaced...
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2000 Pontiac Bonneville Stalls After 5 Minutes of Running
2000 Pontiac Bonneville
The owner of a 2000 Pontiac Bonneville SSEi reports that the vehicle starts and runs for about 5 minutes before shutting off. After it shuts off, atte...
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1996 Chevrolet Starter Solenoid No Signal Issue
1996 Chevrolet Other Models
The vehicle owner reports that the starter solenoid does not receive any signal when attempting to start the engine. This issue occurs intermittently,...
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1987 Chevy Truck No Power Diagnosis
1987 Chevrolet Truck
The owner reports that their 1987 Chevy Truck has no electrical power. They have checked and replaced fusible links near the starter and the accessori...
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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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Electrical System Failure: Radio, Power Seats, and Rear Defrost
1989 Jeep Cherokee
The owner reports that the radio, power seats, and rear defrost suddenly stopped working. They suspect a blown fuse might be the cause. The vehicle is...
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Page 14 of 47 - Showing automotive fault analysis cases