Battery & Charging Issues Analysis Cases

Detailed analysis of battery problems, charging system failures, and electrical power issues.

Brake Lights Activate Intermittently on 1998 Infiniti I30
1998 Infiniti I30
The owner reports that the brake lights on their 1998 Infiniti I30 turn on by themselves intermittently, particularly when the vehicle is stationary. ...
brake_light_switch battery_issues electrical_connections
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2003 Mercedes Benz S430 Electrical Load Issue
2003 Mercedes Benz S430
The owner of a 2003 Mercedes Benz S430 reports an electrical load issue when the vehicle is stored. Despite having the battery checked for voltage dra...
Mercedes Benz S430 Electrical System
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1997 GMC Jimmy Pulsating Electrical System Diagnosis
1997 GMC Jimmy
The owner reports that the entire electrical system is pulsating, including dash lights, headlights, and fuel gauge, with the dash voltmeter indicatin...
GMC Jimmy electrical system
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1998 Honda CRV Electrical Problem Diagnosis
1998 Honda CRV
The owner reports an electrical issue with their 1998 Honda CRV, particularly concerning the battery and alternator functionality. Symptoms include th...
Honda CRV Electrical System
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1996 Chevy Truck Alternator Not Charging
1996 Chevrolet Truck
The truck was completely dead, requiring a jump from another vehicle to start. After starting, disconnecting the battery resulted in the truck dying a...
Chevrolet alternator charging system
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1998 Jaguar XJ8 Dead Battery Diagnosis
1998 Jaguar XJ8
The owner of a 1998 Jaguar XJ8 is experiencing a dead battery located in the trunk, with no access to the trunk due to a missing key. The cigar lighte...
Jaguar XJ8 dead battery
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1999 Mitsubishi Montero Electrical System Issues
1999 Mitsubishi Montero
The owner of a 1999 Mitsubishi Montero is experiencing frequent electrical failures, having replaced the alternator twice and the battery three times....
Mitsubishi Montero electrical system
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Ford Explorer Fuse #14 Issue After Engine Install
1998 Ford Explorer
The owner recently installed a rebuilt 4.0L SOHC V6 engine in their 1998 Ford Explorer Sport. After the installation, they are experiencing a recurrin...
Ford Explorer Fuse
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1994 Toyota Celica - Dead Battery and Oil Light Issue
1994 Toyota Celica
The vehicle owner reports that their 1994 Toyota Celica is completely dead, with the battery and oil warning lights illuminated when the key is turned...
Toyota Celica Electrical Issues
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1993 Nissan Sentra Alternator Overcharging Issues
1993 Nissan Sentra
The owner reports that their 1993 Nissan Sentra recently failed a Maine State Inspection due to the brake and battery lights illuminating continuously...
Nissan Sentra alternator
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Diagnosing Whining Noise in 1993 Cadillac DeVille
1993 Cadillac Sedan DeVille
The owner of a 1993 Cadillac Sedan DeVille with a 4.9L engine and 123,000 miles reports a loud whining noise that occurs during acceleration. The nois...
Cadillac whining noise power steering
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Charging System Failure Diagnosis for 1991 Dodge Dakota
1991 Dodge Dakota
The owner of a 1991 Dodge Dakota with a 3.9L engine and a 4-speed manual transmission reports that the check engine light is on and the vehicle is not...
charging system alternator ECM
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Battery Drain Issue After Transmission Replacement
1994 Buick Park Avenue
The vehicle owner reports a battery drain problem that started after a transmission replacement. They identified that pulling fuse 60 labeled 'elc/min...
Buick elc/minc battery drain
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2004 Dodge Neon No Battery Power to Car
2004 Dodge Neon
The owner reports that their 2004 Dodge Neon is experiencing a complete lack of battery power, with no signs of life when attempting to start. The veh...
Dodge Neon battery
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2003 Saturn L200 Alternator, Battery, A/C Problems Diagnosis
2003 Saturn L200
The vehicle owner reports issues with the alternator, battery, and A/C system on their 2003 Saturn L200. They noticed the check engine light and servi...
Saturn L200 electrical problems
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Brake Lights, Battery, and Speedometer Issues in 97 Altima
1997 Nissan Altima
The owner of a 1997 Nissan Altima reports that after a mechanic fixed the brake lights that wouldn't turn off, the battery light and brake light are n...
Nissan Altima brake lights
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1986 Pontiac Firebird Charging System Diagnosis
1986 Pontiac Firebird
The owner of a 1986 Pontiac Firebird reports persistent charging issues despite multiple replacements of the battery and alternator. The vehicle consi...
charging system voltage issues Pontiac Firebird
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2001 Volkswagen Jetta Alternator Not Charging
2001 Volkswagen Jetta
The owner reports that their 2001 Volkswagen Jetta is experiencing charging issues. Initially, the alternator puts out 13.8 to 14 volts when the engin...
Volkswagen Jetta Alternator
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