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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2000 Chrysler Cirrus No Start After Fuel Pump Replacement
2000 Chrysler Cirrus
The owner reports that their 2000 Chrysler Cirrus just stopped running while driving. After this incident, they replaced the fuel pump, but the vehicl...
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1999 Saturn SL2 Engine Stalls
1999 Saturn SL2
The owner reports that the 1999 Saturn SL2 experiences engine stalling after running for about five minutes. The engine runs fine when it is warmed up...
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2003 Dodge Dakota RPM Fluctuation Diagnosis
2003 Dodge Dakota
The owner reports experiencing RPM fluctuation while driving, without any loss of engine power. The RPM fluctuates at any speed, and hitting bumps cau...
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1999 Chrysler Sebring Engine Whirring Noise Diagnosis
1999 Chrysler Sebring
The owner of a 1999 Chrysler Sebring has reported a whirring noise from the engine, particularly when the car is hot or when the air conditioning is t...
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1998 Saturn SL1 Check Engine Code P0446 Diagnosis
1998 Saturn SL1
The owner reported a check engine light illuminated with code P0446, indicating a potential issue in the evaporative emissions system. The vehicle run...
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2001 Ford Explorer Cylinder Firing Issue
2001 Ford Explorer
The owner reports a problem with one cylinder on their 2001 Ford Explorer that has spark and fuel but will not fire. Compression checks out at 150 psi...
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1985 Toyota Landcruiser Cranks but Won't Start
1985 Toyota Landcruiser
The owner of the 1985 Toyota Landcruiser reported that the vehicle cranks but does not start. The issue was noted particularly in cold and rainy condi...
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1998 Buick Regal No Start Condition
1998 Buick Regal GS
The owner reports that their 1998 Buick Regal GS will not crank or start. Just before this issue occurred while driving, all dashboard lights started ...
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1977 Dodge 440 Engine Pinging Diagnosis
1977 Dodge 440
The owner reports that their 1977 Dodge 440 engine experiences severe pinging after warming up, especially noticeable after driving about 10 miles. Th...
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1995 Chrysler Sebring Turning Over but Won't Crank
1995 Chrysler Sebring
The owner's 1995 Chrysler Sebring is turning over but not cranking. Recent actions include replacing the distributor, checking the timing, and install...
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1999 Plymouth Voyager No Spark Diagnosis
1999 Plymouth Voyager
A 1999 Plymouth Voyager suddenly died while accelerating from a stop. The owner noted that the engine has good power and cranks without issue but show...
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1996 Acura TL Engine Compression Failure Diagnosis
1996 Acura TL
The owner of a 1996 Acura TL reports a serious engine issue, stating that there is no compression in the engine. They have noted that the vehicle was ...
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Engine Wiring Issues Causing No Start Condition
unknown Jeep unknown
The owner reported that while driving, the engine suddenly lost power and stopped running when they went to refuel. They are now unable to restart the...
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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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1999 Toyota Corolla Airbox Noise Diagnosis
1999 Toyota Corolla
The owner of a 1999 Toyota Corolla with a 1.8L engine and 109,000 miles reports a sucking noise from the airbox at low idle. The noise is traced to a ...
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1995 Saturn SL1 Engine Stalling on Stop
1995 Saturn SL1
The owner reports that their 1995 Saturn SL1 experiences engine stalling when coming to a stop. The 'service engine soon' light has been on for a whil...
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2001 Nissan Altima Intermittent Stalling and Misfire
2001 Nissan Altima
The owner reports that while idling, the engine RPM drops to a level where it feels like it might stall. The vehicle accelerates well initially, but w...
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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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