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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Resetting Alarm Kill Switch on 1995 Infiniti I30
1995 Infiniti I30
The owner of a 1995 Infiniti I30 is seeking advice on how to reset the alarm kill switch. The vehicle is currently non-operational due to the alarm sy...
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2000 Nissan Maxima Engine Knocking and Pinging Issues
2000 Nissan Maxima
The owner reports that their 2000 Nissan Maxima GLE experiences engine pinging and knocking noises during normal acceleration, similar to a diesel eng...
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2003 GMC Sonoma Hard Start & P0171 Code Diagnosis
2003 GMC Sonoma
The owner has a 2003 GMC Sonoma with a 2.2L engine and 140K miles that experiences hard starting when the fuel gauge is at 1/4 tank or lower. They oft...
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2008 GMC Yukon Reduced Engine Power Diagnosis
2008 GMC Yukon
The owner of a 2008 GMC Yukon reports experiencing reduced engine power, which has persisted despite multiple repair attempts. The vehicle has had the...
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2000 Suzuki Grand Vitara White Smoke Diagnosis
2000 Suzuki Grand Vitara
The owner reports seeing white smoke coming from the tailpipe when starting the vehicle. They haven't performed a tune-up recently and are hopeful for...
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Intermittent Stuttering During Acceleration
2009 Saturn Aura
The owner reports that the 2009 Saturn Aura with a 2.4L engine experiences stuttering while gently accelerating, particularly noticeable between 45-75...
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2007 Honda Civic Alternator Squeal Diagnosis
2007 Honda Civic
The owner reports a squealing noise from the alternator when starting the vehicle in extremely cold temperatures (around 10 degrees). This noise resem...
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1992 Suzuki Engine Won't Start - Control Box Issues
1992 Suzuki Other Models
The owner's 1992 Suzuki cannot start, with symptoms starting and running initially but failing to restart after stopping. Over two months, various tec...
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Electrical System Failure: Radio, Power Seats, and Rear Defrost
1989 Jeep Cherokee
The owner reports that the radio, power seats, and rear defrost suddenly stopped working. They suspect a blown fuse might be the cause. The vehicle is...
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Volvo S80 T6 Timing Belt and Cam Seal Replacement
1999-2006 Volvo S80 T6
The vehicle owner downloaded instructions for changing the cam seals and timing belt on a 1999-2006 Volvo S80 T6 with twin turbos and VVT systems. How...
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2002 Saturn SL2 Starts for 1 Sec, Then Dies
2002 Saturn SL2
The owner has a 2002 Saturn SL2, which they recently changed the engine on. After the replacement, the vehicle cranks and starts for about one second ...
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Chevy S-10 Knocking After Intake Gasket Replacement
1994-2004 Chevrolet S-10
The owner changed the intake gaskets on their Chevy S-10, but now experiences a loud knocking noise from the engine. They encountered issues with the ...
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2003 Saturn L200 Not Starting Issue Diagnosis
2003 Saturn L200
The owner relies on this 2003 Saturn L200 for pizza deliveries. Recently, the car failed to start despite a new starter being installed. It cranks but...
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Harmonic Balancer Pulley Removal Techniques
1996 Dodge Neon
The owner of a 1996 Dodge Neon is trying to remove the harmonic balancer pulley but is facing difficulties. They have removed the large crankshaft bol...
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1998 Volvo S70 GLT Engine Humming Noise Diagnosis
1998 Volvo S70 GLT
The owner of a 1998 Volvo S70 GLT reports a strange humming or buzzing noise coming from the engine while idling. They have posted on a Volvo forum fo...
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Excess Gas in Cylinder Head Diagnosis for Mazda 626
1998-2002 Mazda 626
The vehicle owner reports an issue with excess gasoline in the cylinder head of a Mazda 626. Previous repairs included fixing the head, replacing the ...
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1997 Honda Passport LX Knocking Noise Diagnosis
1997 Honda Passport
The owner of a 1997 Honda Passport LX reports a knocking noise from the engine upon startup. The vehicle has 163,000 miles and the owner is unsure of ...
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1989 Plymouth Voyager No Start Diagnosis
1989 Plymouth Voyager
The owner reports that the engine of their 1989 Plymouth Voyager was running fine until they pressed a button on the radio, after which the engine qui...
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