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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1995 Ford Explorer Power Steering Issues
1995 Ford Explorer
The owner reports that their 1995 Ford Explorer's steering wheel shimmies and shakes when turning. They have checked the power steering fluid, which i...
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Intermittent RPM Fluctuation and Stalling in 1988 Toyota Supra
1988 Toyota Supra
The owner reports that their 1988 Toyota Supra struggles to maintain a steady RPM, fluctuating between idle and 2000 RPM. They replaced the air manifo...
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2002 Kia Sedona Van Throttle Issue Diagnosis
2002 Kia Sedona
The owner reports that their 2002 Kia Sedona van runs fine until it warms up. When the throttle is held at a constant position for too long, it fails ...
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Intermittent Starting Issue on 2000 Saturn SC2
2000 Saturn SC2
The owner reports intermittent starting issues with a 2000 Saturn SC2. Initially, the vehicle would not start at all, leading the previous owner to se...
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Harmonic Balancer Removal Issues on 2006 Kia Sportage V6
2006 Kia Sportage
The owner is attempting to remove the harmonic balancer on a 2006 Kia Sportage with a V6 engine. They report that there are no threads on the balancer...
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Intermittent Horn Blast When Starting 2001 Audi TT
2001 Audi TT
The owner reports that after replacing the rack and pinion in their 2001 Audi TT, the horn intermittently blasts when starting the car. They are conce...
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Intermittent Stalling While Driving - 95 Infiniti J-30
1995 Infiniti J-30
The owner of a 1995 Infiniti J-30 reports intermittent stalling while driving, particularly when slowing down or turning. The vehicle starts right bac...
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1998 Buick Regal Bumpy Start and Antifreeze Leak
1998 Buick Regal
The owner reports a bumpy start-up issue with their 1998 Buick Regal and an antifreeze leak. They have to refill the coolant periodically, though ther...
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1988 Ford F350 Diesel Won't Start After Running Out of Fuel
1988 Ford F350
The owner reports that their 1988 Ford F350 diesel truck ran out of diesel fuel and now won't start again. They mentioned previous use of starting flu...
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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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1999 Honda Odyssey Engine Runs Rough After EGR Replacement
1999 Honda Odyssey
The owner of a 1999 Honda Odyssey reports that after purchasing the vehicle, the check engine light illuminated. A dealer diagnosed a faulty EGR valve...
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Intermittent Stalling Issue on 2002 Saturn L200
2002 Saturn L200
The owner's 2002 Saturn L200 has started stalling while driving on the highway. This issue first occurred when the owner's wife was driving on the int...
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1995 Dodge Truck Engine Dies Under Load
1995 Dodge Truck
The vehicle starts and revs normally, but the engine dies when put into gear and torque is applied while driving. The owner has replaced several compo...
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2003 BMW Mini Cooper Won't Start - Intermittent Issues
2003 BMW Mini Cooper
The owner reports that their 2003 Mini Cooper cranks but won't start. They checked the spark plugs and injector pulse, finding both fire once and then...
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Diagnosing Power Loss in 1979 Chevy Truck Due to PCV Valve
1979 Chevy Truck
The owner reports that their 1979 Chevy Truck suddenly lost power, struggling to reach normal speeds. Easing off the gas slightly improves performance...
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1985 BMW 325 Engine Stalls When Warmed Up
1985 BMW 325
The vehicle runs well in the morning but stalls and sputters when the engine reaches around 150 degrees Fahrenheit. The owner has replaced the coolant...
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2000 Lexus ES 300 High Idle and RPM Fluctuations
2000 Lexus ES 300
The owner reports that their 2000 Lexus ES 300 idles high at around 1200 RPM in park and 1000 RPM in drive after starting and warming up. The vehicle ...
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2002 Mazda Tribute Uphill Weak Power Diagnosis
2002 Mazda Tribute
The owner reports that their 2002 Mazda Tribute runs well except when driving uphill, where it fails to accelerate effectively. They have noticed that...
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Page 17 of 47 - Showing automotive fault analysis cases