Fuel System & Pump Issues Analysis Cases

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

1997 Honda Accord LX Unexpectedly Dies
1997 Honda Accord LX
The owner reports that their 1997 Honda Accord LX is experiencing unexpected stalling while driving. This issue occurs intermittently, with no clear p...
Honda Accord PGM-FI
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1997 Dodge Ram Idle Issues with Sensors and Vacuum
1997 Dodge Ram
The owner reports that their 1997 Dodge Ram will not hold an idle and runs sluggishly with knocking and pinging while driving. The engine dies when co...
Dodge Ram idle issues
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EVAP System Preventing Fuel Tank Filling
2003-2021 Chevrolet Express
The owner has a Chevrolet Express motorhome that is having issues filling the fuel tank. Whenever attempting to fill the tank, the gas immediately com...
EVAP System Fuel Filling Issues Chevrolet Express
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1986 Ford F-150 Rough Idling Diagnosis
1986 Ford F-150
The owner reports that their 1986 Ford F-150 with a 302 V8 engine is experiencing rough idling. Initially, the issue included stalling at stoplights, ...
Ford F-150 Rough Idling
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Fuel Pump Replacement Issue Diagnosis
1981 Dodge Diplomat
The owner of a 1981 Dodge Diplomat reports that the vehicle will not start unless gasoline is poured directly into the carburetor. After checking the ...
Dodge Diplomat fuel pump
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1999 GMC Sonoma Fuel Gauge Level Misreading
1999 GMC Sonoma
The owner reports that after replacing the fuel pump and sending unit, the fuel gauge still reads incorrectly. Initially, when the ignition is turned ...
fuel_gauge sending_unit wiring_issues
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2001 Daewoo Rough Idle After Sitting
2001 Daewoo unknown
The owner reports that their 2001 Daewoo experiences a rough idle after sitting overnight. The vehicle shakes and stutters significantly, occasionally...
Daewoo rough idle fuel system
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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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Hyundai Accent Poor MPG and Acceleration Issues
2002 Hyundai Accent
The owner reports their 2002 Hyundai Accent 1.6L automatic, with 103,000 miles, is experiencing terrible gas mileage, averaging about 20 MPG regardles...
Hyundai Accent fuel economy
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Fuel Gauge and Injector Power Testing on 96 GMC Jimmy
1996 GMC Jimmy
The owner reports intermittent stalling issues with the vehicle, primarily at idle and during slowdowns. The check engine light remains solid, but no ...
fuel_system injectors stalls
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2000 Ford Contour Rough Idle and Stalling Diagnosis
2000 Ford Contour
The owner reports that their 2000 Ford Contour with a 2.0L engine is experiencing rough idling, especially when the A/C is on, and it stalls under ful...
Ford Contour Rough Idle
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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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2002 Jeep Liberty: Check Engine Light and Black Smoke
2002 Jeep Liberty
The owner reports that their 2002 Jeep Liberty is experiencing a flashing check engine light, accompanied by black smoke from the tailpipe. The vehicl...
Jeep Liberty check engine light
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Toyota Hilux Surf Diesel Engine Bogging Down Issues
1990-1997 Toyota Hilux Surf
The owner of a Toyota Hilux Surf (2.4L diesel) reported that after a mechanic replaced the fuel pump and glow plugs, the vehicle now starts fine. Howe...
Toyota Hilux Surf diesel
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Intermittent Stalling Due to Fuel Pressure Issues
1995 Nissan Maxima SE
The owner of a 1995 Nissan Maxima SE with a 3.0L engine reports intermittent stalling and stuttering while driving. The issue tends to worsen as the f...
Nissan Maxima fuel pressure
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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 ...
Chevy S-10 engine knocking
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Engine Misfire and Shaking Diagnosis for 2004 Chevy Cavalier
2004 Chevrolet Cavalier
The owner reports that their 2004 Chevy Cavalier makes a funny sound and shakes upon starting, as if it wants to stall but doesn’t. After having the s...
engine misfire ignition system fuel delivery
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Poor Gas Mileage and Engine Vibration Diagnosis
2000 Toyota Celica
The owner of a 2000 Toyota Celica reports significantly poor gas mileage and excessive engine vibration, especially noticeable while idling at stoplig...
fuel_injector MAF_sensor engine_mount
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