Fuel System & Pump Issues Analysis Cases

Detailed analysis of fuel delivery problems, pump failures, and fuel system diagnostics.

Fuel Filter Maintenance and Replacement Guidance
2009 Ford Focus SE
The owner of a 2009 Ford Focus SE is uncertain about the fuel filter maintenance as the owner’s manual states it has a lifetime fuel filter that doesn...
fuel_filter Ford_Focus maintenance
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2005 Honda CR-V Fuel Economy Drop Diagnosis
2005 Honda CR-V
The owner of a 2005 Honda CR-V reports a decrease in fuel economy from an average of 22-23 mpg to around 19 mpg under the same driving conditions. The...
Honda CR-V fuel economy
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1992 Dodge Shadow No Power To Fuel Tank
1992 Dodge Shadow
The owner's 1992 Dodge Shadow is experiencing a fuel delivery issue, as there is no power to the fuel tank despite having spark at the ignition. The f...
Dodge Shadow fuel pump
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2005 Pontiac Grand Am Misfire and Fuel Consumption Issues
2005 Pontiac Grand Am
The owner reports persistent misfiring at speeds under 40 mph, difficulty starting the vehicle, and a strong gasoline smell inside the cabin. After re...
Pontiac Grand Am misfire
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1991 Dodge Shadow Fuel Pump No Power Diagnosis
1991 Dodge Shadow
The owner reports that their 1991 Dodge Shadow died after hitting a pothole. They checked the fuse for the fuel pump and found no power. Additionally,...
Dodge Shadow Fuel Pump
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1993 Chevy Cavalier Stalling Issue Diagnosis
1993 Chevrolet Cavalier
The owner reports that their 1993 Chevy Cavalier tends to stall when coming to a complete stop, such as at stop lights or intersections. The idle fluc...
Chevrolet Cavalier stalling
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2005 Ford Escape Stalling After Long Trips
2005 Ford Escape
The owner reports that the 2005 Ford Escape experiences stalling after long trips at high speeds. The vehicle operates normally during daily driving c...
fuel_system stalling_issue high_speed_driving
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1992 Ford Escort No Power Diagnosis
1992 Ford Escort
The owner reports that their 1992 Ford Escort has no power, especially noticeable during faster turns. They have also observed smoke coming from under...
1992 Ford Escort power loss catalytic converter
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Fuel Line Purpose and Diagram for 2006 E350
2006 Mercedes-Benz E350
The owner of a 2006 Mercedes-Benz E350 PZEV is seeking detailed information about the purpose of each fuel line connected to the fuel filter. They hav...
Mercedes-Benz E350 fuel system
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Engine Stalling and Overheating Issues
1994 Pontiac Grand Prix
The owner reports that the engine of their 1994 Pontiac Grand Prix is experiencing stalling issues and overheating. Symptoms include the engine attemp...
Pontiac Grand Prix ECT sensor
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1991 Honda CRX Engine Stutters While Driving
1991 Honda CRX
The owner of a 1991 Honda CRX with a D15B6 1.5L engine reports engine stuttering during driving, particularly at steady throttle positions. The stutte...
Honda CRX engine stutter
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1990 Plymouth Laser RS Turbo Poor Gas Mileage Diagnosis
1990 Plymouth Laser rs turbo
The owner recently purchased a 1990 Plymouth Laser RS Turbo and reports poor gas mileage, consuming a quarter tank of gas over just 50 highway miles. ...
fuel efficiency turbocharged engine vehicle maintenance
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1992 Pontiac Sunbird Tensioner Pulley Removal Diagnosis
1992 Pontiac Sunbird
The owner of a 1992 Pontiac Sunbird SE with a 3.1L V6 reported that the vehicle was misfiring and running poorly, akin to only firing on five cylinder...
Pontiac Sunbird tensioner
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1992 Pontiac Sunbird Sputtering and Acceleration Issues
1992 Pontiac Sunbird
The owner reports that their 1992 Pontiac Sunbird experiences sputtering when accelerating, unable to exceed 20 mph even with the gas pedal fully pres...
Pontiac Sunbird sputtering
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1991 Pontiac Sunbird Fuel Delivery Issue Diagnosis
1991 Pontiac Sunbird
The owner reports that their 1991 Pontiac Sunbird convertible developed an 'almost start' condition. The vehicle cranks and starts but dies after abou...
fuel delivery injectors electrical issues
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1994 Mazda 626 Rough Running and Stalling Issues
1994 Mazda 626
The owner reports that the 1994 Mazda 626 with a 2.0 V-6 engine has been running rough and missing, especially when the A/C is on. The vehicle shuts o...
Mazda 626 V6
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1991 Chevy Beretta Power Loss When Hot
1991 Chevrolet Beretta
The owner reports that the 1991 Chevy Beretta idles well but experiences severe power loss and cutouts once it reaches normal operating temperature du...
Chevrolet Beretta power loss
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1990 Mazda 626 Fuel Gauge Not Functioning
1990 Mazda 626
The owner of a 1990 Mazda 626 has reported that the fuel gauge was functioning initially but has since stopped registering fuel levels. After a few da...
Mazda fuel gauge sending unit
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