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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Accessing Rear Spark Plugs on '88 Lincoln Town Car
1988 Lincoln Town Car
The owner wants to perform a tune-up on their 1988 Lincoln Town Car but is uncertain about accessing the rear spark plugs. They have experience with o...
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Transmission Jerk on Takeoff in 2008 Chevrolet Uplander
2008 Chevrolet Uplander
The owner reports experiencing a jerk during takeoff in their 2008 Chevrolet Uplander, which they suspect is due to a transmission issue. The vehicle ...
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2004 Kia Sorento Will Not Start After Sensor Replacement
2004 Kia Sorento
The owner of a 2004 Kia Sorento replaced the crankshaft position sensor but now the engine won't start, just turns over without firing. The coolant is...
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2001 Isuzu Trooper Engine Stalls with A/C On
2001 Isuzu Trooper
The owner reports that the 2001 Isuzu Trooper runs fine until the air conditioning is turned on. At that point, the vehicle may initially run well but...
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96 Chevy S-10 Cranks but Won't Start
1996 Chevrolet S-10
The owner of a 1996 Chevy S-10 reports that the vehicle cranks but does not start. It will start if gas is added to the carburetor and will run after ...
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Low Idle and Stalling After Flooded Streets
2005 Honda Accord
The owner of a 2005 Honda Accord 2.4L reports experiencing low idle at cold start, around 600-700 RPM, which leads to stalling after warming up. The i...
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2002 Honda Civic Slow to Start Diagnosis
2002 Honda Civic LX
The owner reports that their 2002 Honda Civic LX is slow to start after turning the key. The engine turns over but does so slowly. A dealer previously...
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1996 Chevy Cavalier Idling Issues After Warm-Up
1996 Chevrolet Cavalier
The owner describes that the 1996 Chevy Cavalier with a 2.2 OHV engine starts and idles normally until it warms up. Once it enters closed loop operati...
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1997 Buick Park Avenue Security System Issue After Engine Swap
1997 Buick Park Avenue
The owner swapped the engine from a 1999 Buick Park Avenue Ultra into a 1997 Buick Park Avenue Ultra, but the vehicle won't start due to the key secur...
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1989 GMC C3500 Engine Won't Start After Thermostat Replacement
1989 GMC C3500
The owner replaced the thermostat on their 1989 GMC C3500, but now the engine won't start. They reported that after the thermostat installation, the e...
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2000 Acura Integra Throttle Cable Grounding Issue
2000 Acura Integra
The owner of a 2000 Acura Integra reports issues after an engine swap. When turning the key, the RPMs spike to 8, and the throttle cable heats up, pre...
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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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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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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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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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