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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Intermittent Power Loss and Stalling Issue
2006 Chevrolet Uplander
The owner of a 2006 Chevy Uplander reports experiencing minimal power and occasional stalling when accelerating from a stop. After taking the vehicle ...
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2009 Camry Low Power and Shaking with Check Engine Light
2009 Toyota Camry
The owner reports that the 2009 Toyota Camry has low power and is shaking, accompanied by the check engine light illuminating intermittently. Initiall...
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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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1990 Chevrolet Truck Serpentine Belt Issues
1990 Chevrolet 1500
The owner of a 1990 Chevrolet 1500 454 SS is experiencing frequent failures of the serpentine belt tensioner. The smoke pump and idler pulley have bee...
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2001 Mazda 323 Stalls in Traffic on Hot Days
2001 Mazda 323
The owner has a 2001 Mazda 323 with 90,000 km that experiences stalling after about 20 minutes of idling in traffic on hot days. They have checked for...
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2004 Pontiac Grand Am Stalling Issue
2004 Pontiac Grand Am
The owner reports that their 2004 Pontiac Grand Am with a 3600 V6 engine has been hard to start lately and requires keeping the RPMs up to prevent sta...
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1991 Buick 3.8L Starts and Stalls After Hot Soak
1991 Buick Regal Custom
The owner of a 1991 Buick Regal Custom with a 3.8L engine reports that the vehicle starts and stalls after a hot soak. After the first failed start, a...
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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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Intermittent Stalling Issue on 1992 Oldsmobile Cutlass
1992 Oldsmobile Cutlass Cierra
The owner reports that their 1992 Oldsmobile Cutlass Cierra, equipped with a 6-cylinder engine and automatic transmission, experiences random stalling...
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Intermittent Stalling at Stops - Jeep Cherokee
2000-2005 Jeep Cherokee
The owner reports that their Jeep Cherokee turns off when coming to a stop at traffic lights. The RPMs drop from about 500 to 0 before the engine stal...
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1998 Dodge Intrepid Stalling and Lurching Diagnosis
1998 Dodge Intrepid
The owner of a 1998 Dodge Intrepid reports issues while driving, including stalling, lurching, and hard starting. The check engine light has illuminat...
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2003 Volkswagen Jetta Fuel Gauge and Stalling Issue
2003 Volkswagen Jetta
The owner reports that their 2003 Volkswagen Jetta sputters and occasionally stalls when the fuel gauge indicates below half a tank. Despite using the...
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2005 Chevrolet Lumina Engine Oil Leakage Diagnosis
2005 Chevrolet Lumina
The owner discovered engine oil leaking on the road after parking the vehicle. They suspect the oil is leaking from the oil pan based on their observa...
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2007 Nissan Pathfinder A/C Diagnostic Analysis
2007 Nissan Pathfinder
The owner of a 2007 Nissan Pathfinder reported that the A/C was not cooling as effectively as normal, especially in high temperatures exceeding 100°F....
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ECU Programming After Engine Swap from 1.4L to 1.8L
2013 Chevrolet Cruze
The mechanic swapped the original 1.4L turbo engine in a 2013 Chevy Cruze for a 1.8L non-turbo engine. The wiring harness and fuse box were changed, b...
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2003 Nissan Sentra turns over but will not start
2003 Nissan Sentra
The owner reports that the 2003 Nissan Sentra turns over but does not start. They have confirmed that there is no spark at the plugs and have replaced...
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2008 Cadillac CTS Engine Rod Replacement
2008 Cadillac CTS
The owner suspects that the engine rods in their 2008 Cadillac CTS are damaged and is considering replacing them. They are looking for torque specific...
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2000 Infiniti I30 Not Starting - Diagnostic Analysis
2000 Infiniti I30
The owner reports that the 2000 Infiniti I30 does not start, with the starter clicking when the key is turned but no engine turnover. The battery and ...
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