Fuel System & Pump Issues Analysis Cases

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

1990 Lincoln Town Car No Power to Injectors from PCM
1990 Lincoln Town Car
The owner of a 1990 Lincoln Town Car reports no power from the PCM to the fuel injectors. They have checked fuse number 13 and fuse T in the engine co...
Lincoln PCM Fuel Injectors
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1990 Honda Civic Stalling Above Idle
1990 Honda Civic
The owner reports that the 1990 Honda Civic stalls above idle unless the throttle is pressed slowly, similar to a carbureted vehicle with a faulty acc...
Honda Civic Stalling
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1993 Saturn SL1 Flooding and Stalling Diagnosis
1993 Saturn SL1
The owner is experiencing flooding and stalling issues with their 1993 Saturn SL1 (1.9L, 206,000 miles). After replacing the fuel injector, coolant te...
Saturn fuel system flooding
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1991 Dodge Truck Water in Oil Light On
1991 Dodge 2500
The owner of a 1991 Dodge 2500 Cummins truck reports that the 'water in fuel' light on the instrument panel remains illuminated. Despite the warning l...
Dodge Cummins water in fuel
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1993 Ford Mustang Fuel System Electrical Diagnosis
1993 Ford Mustang
The owner reports that the fuel pump does not activate when the ignition key is turned on. They have checked some fuses, but there is no sound from th...
Ford Mustang fuel system
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1991 Ford Ranger Fuel Mileage Diagnosis
1991 Ford Ranger
The owner reports their 1991 Ford Ranger is only achieving 11 miles per gallon. They have replaced several sensors including the O2 sensor and MAFTA a...
Ford Ranger fuel economy diagnostic
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4.3 TBI Running Rough and Too Rich
1992-1992 GMC S15 Blazer
The owner reports that their 1992 GMC S15 4.3 TBI Blazer has started running rough and very rich, with no power and poor acceleration. The vehicle was...
GMC 4.3 TBI fuel system
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1992 Saturn SC2 Stalling After Warm-Up
1992 Saturn SC2
The owner describes a 1992 Saturn SC2 that runs fine for about 10 minutes each morning. After that, it starts cutting out severely while driving, ofte...
Saturn SC2 stalling
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1993 Chevrolet Lumina Keeps Stalling Intermittently
1993 Chevrolet Lumina
The owner has a 1993 Chevrolet Lumina minivan, which has been experiencing intermittent stalling, especially when the fuel level drops below a quarter...
Chevrolet Lumina stalling fuel system
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1991 Mazda B2600 Stalling When Accelerating
1991 Mazda B2600
The owner describes a problem with their 1991 Mazda B2600 where the engine idles fine in neutral but sputters and drops to about 200 RPM when the acce...
Mazda B2600 stalling
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1994 Chrysler Le Baron Hesitation During Acceleration
1994 Chrysler Le Baron
The owner reports that the vehicle experiences hesitation during acceleration, where the RPM gauge sticks, causing a loss of power before suddenly jum...
Chrysler Le Baron hesitation
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1993 Dodge Ram Engine Stalling When Turning Left
1993 Dodge D150
The owner of a 1993 Dodge D150 truck reports an intermittent stalling problem that occurs when turning the steering wheel to the left. If they quickly...
Dodge D150 engine stalling
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Ford Probe Stalling Issue After 15 Minutes of Operation
1993 Ford Probe GT
The owner reports that their 1993 Ford Probe GT with a 2.5L V6 engine runs smoothly for about 10-15 minutes before it starts stalling intermittently, ...
Ford Probe stalling issue fuel system
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1994 BMW 325 Random Stalling and Instant Shutdown
1994 BMW 325
The owner describes their 1994 BMW 325 stalling unexpectedly while driving. The engine occasionally dies without any warning, even at speeds of 40 mph...
BMW 1994 stalling
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1990 Geo Storm Power Loss Diagnosis
1990 Geo Storm
The owner of a 1990 Geo Storm reports a loss of power while driving. The vehicle has been experiencing performance issues, particularly noticeable dur...
Geo Storm power loss fuel injectors
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Fuel Injector Power Supply Issue on 1994 Dodge Ram 1500
1994 Dodge Ram 1500
The owner reports that their 1994 Dodge Ram 1500 with a 5.9L V8 engine has no power to the fuel injectors when the ignition switch is turned on. They ...
fuel_injection Dodge 1994 Ram 1500
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1991 Pontiac Firebird Stalling and Poor Performance
1991 Pontiac Firebird
The owner reports that while driving, the Pontiac Firebird suddenly dropped to 1000 RPM and wouldn't gain speed, ultimately stalling. The engine somet...
Pontiac Firebird fuel system
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1991 Ford Probe Rough Idle and Acceleration Issues
1991 Ford Probe
The owner reports that the 1991 Ford Probe idles roughly and can stall when in gear at a stop, but runs fine in park or neutral. When accelerating slo...
Ford Probe rough idle MAF sensor
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