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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1999 Oldsmobile Intrigue Turn Signal Failure Diagnosis
1999 Oldsmobile Intrigue
The front turn signals on a 1999 Oldsmobile Intrigue have stopped working. The owner replaced both front bulbs, but the issue persists. When the turn ...
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2005 Toyota Highlander Engine ID Retrieval
2005 Toyota Highlander
The owner has a 2005 Toyota Highlander that is currently in a shipping container in Vietnam. They need the engine ID code for customs clearance but ca...
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1998 Honda CRV Starting Problem Diagnosis
1998 Honda CR-V
The owner reports that the 1998 Honda CR-V won't start after being parked for about half an hour. Initially, there was no spark from the distributor, ...
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1999 Saturn SC2 Compression Test Analysis
1999 Saturn SC2
The owner reports that their 1999 Saturn SC2 is idling rough and burning a little oil. After performing a compression test, they found dry readings be...
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Intermittent Check Engine Light Blinking Issue
1993 Toyota Corolla
The owner reports that their 1993 Toyota Corolla GLi has started to experience a fast blinking check engine light intermittently over the last three d...
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1997 Saturn SC2 EGR and Catalytic Converter Issues
1997 Saturn SC2
The owner reports that their 1997 Saturn SC2 has incomplete readings for the EGR and catalytic converter. They are also seeing trouble codes P0300 (ra...
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1997 Mazda 626 Acceleration Issue Diagnosis
1997 Mazda 626
The owner reported a significant decrease in power during a road trip after three hours of driving. The engine was at normal temperature with no other...
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1997 Ford Explorer Intermittent Shaking Issue
1997 Ford Explorer
The owner reports that their 1997 Ford Explorer, with 160,000 miles, shakes significantly when accelerating from about 30 to 40 mph. The symptoms rese...
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2000 Nissan Maxima Starter Replacement - Engine Response
2000 Nissan Maxima
The owner of a 2000 Nissan Maxima reports issues with the engine not starting, indicating a potential starter failure. The problem occurs intermittent...
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1997 Saturn Alarm Malfunction Diagnosis
1997 Saturn unknown
The owner of a 1997 Saturn reports that while all functions of the vehicle work, including the engine starting, the factory alarm system is not functi...
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2001 Mitsubishi Galant Intermittent Starting Issues
2001 Mitsubishi Galant
The owner reports that after replacing the valve cover gaskets, oil was discovered near the spark plugs, leading to their replacement as well. Now, wh...
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1997 Dodge Caravan Fuel Pump Starting Issues
1997 Dodge Caravan
The owner's father recently replaced the fuel pump due to starting issues and a gas smell from a leak. After the replacement, the van initially ran fi...
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Power Window Will Not Go Up from Either Switch
2001 Oldsmobile Silhouette
The passenger side power window won't go up from either the passenger or driver's side controls, although both switches can lower it. The owner attemp...
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1999 Ford Ranger Thumping Sound Diagnosis
1999 Ford Ranger
The vehicle owner reported a thumping sound from under the hood after driving 28 miles on the interstate. Upon turning off the engine, the thumping co...
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2006 Honda Civic Bent Rocker Shaft Noise Issue
2006 Honda Civic
The owner reported a noise coming from the engine of their 2006 Honda Civic, which has been attributed to a bent rocker shaft. The problem seems to oc...
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2003 Saturn Vue Stalling Issues After Accident
2003 Saturn Vue
The owner experienced intermittent stalling after an accident that required a battery recharge. The garage reset the computer but found no issues. The...
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2001 Lincoln Town Car Engine Hesitation at 40-45 mph
2001 Lincoln Town Car
The owner reports that the 2001 Lincoln Town Car's engine hesitates or misfires specifically at speeds between 40 and 45 mph. The issue arises only du...
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2000 Jaguar XJ8 Intermittent Failsafe Mode
2000 Jaguar XJ8
The owner reports intermittent failsafe mode in their 2000 Jaguar XJ8, primarily triggered by the P0121 code. The failsafe mode occurs every few block...
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