Fuel System Fault Analysis Cases

Comprehensive fuel system diagnostics including fuel pump failures, delivery issues, fuel economy problems, and injection system faults.

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1998 Jeep Wrangler Fuel Pump Diagnosis
1998 Jeep Wrangler
The owner replaced the fuel pump and sending unit on their 1998 Jeep Wrangler due to a code for bad fuel level. After the replacement, the vehicle won...
fuel system Jeep Wrangler diagnosis
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1987 Chevy Blazer Fuel Delivery Issue
1987 Chevrolet Blazer
The owner reports that their 1987 Chevy Blazer was initially not delivering fuel to the engine. After replacing the fuel pump, fuel flow was restored,...
fuel_system Chevrolet Blazer
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Check Engine Light On, Speedometer and Gas Gauge Inoperative
2003 Saturn Vue
The owner reports that their 2003 Saturn Vue, which usually runs well, has had the check engine light come on, and both the speedometer and gas gauge ...
Saturn BCM speedometer
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Air Filter Replacement for 2004 Ford Focus 2.3L
2004 Ford Focus
The owner recently purchased a 2004 Ford Focus ZTS with a 2.3L I4 PZEV engine. They noted that the owner's manual mentions an air filter sensor instea...
Ford Focus air filter
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2007 Ford Focus Fuel System Noise After Filter Replacement
2007 Ford Focus
The owner replaced the fuel filter on a 2007 Ford Focus, which was running fine before the service. After removing the 15 amp fuse, starting the car t...
Ford Focus fuel system
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2008 Honda Jazz Burning Smell Diagnosis
2008 Honda Jazz
The owner reports a burning smell coming from the driver's rear side after driving even a short distance. They checked for visible issues but found no...
Honda Jazz burning smell
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1998 GMC Jimmy Fuel Injector Spider Unit Bracket Compatibility
1998 GMC Jimmy
The vehicle owner is replacing the central port spider injector unit of their 1998 GMC Jimmy and is inquiring about the compatibility of brackets when...
fuel_injection spider_injector GMC_Jimmy
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Heavy Rear Door Lift Difficulty in 2009 Ford Escape
2009 Ford Escape
The owner of a 2009 Ford Escape reports that the rear door is too heavy to lift into the open position, although the shocks are functioning properly. ...
Ford Escape Rear Door
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2001 Chevy Silverado No Fuel Pump Kick In
2001 Chevrolet Silverado
The vehicle owner reports that their 2001 Chevy Silverado is experiencing an issue where the fuel pump does not activate. The problem occurs when atte...
fuel_pump relay wiring
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Fuel Injection Issue: No Fuel from Injectors
1996 GMC Jimmy
The owner of a 1996 GMC 4.3L Jimmy reports a fuel injection issue where there is no fuel delivery from the injectors. They tested power to each inject...
fuel_injection GMC_Jimmy diagnostics
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Gas Gauge Malfunction Diagnosis for 1997 Cadillac STS
1997 Cadillac STS
The owner of a 1997 Cadillac STS with a 4.6L engine reports that the gas gauge is not functioning properly after replacing the fuel pump. They suspect...
fuel_system gauge_functionality wiring_issues
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Injector Cleaning Options for Improved Efficiency
not specified Toyota not specified
The vehicle owner is looking for ways to improve fuel efficiency and injector performance. They watched a video by mechanic Scotty Kilmer about a devi...
injector cleaning fuel system maintenance chemical additives
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