Fuel System & Pump Issues Analysis Cases

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

Black Smoke from Exhaust in 1995 Toyota Corolla
1995 Toyota Corolla
The owner of a 1995 Toyota Corolla with a 1.6L engine reports black smoke coming from the exhaust. Despite replacing numerous components including the...
Toyota Corolla black smoke
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1996 Honda Civic EJ6 Coolant Loss Diagnostics
1996 Honda Civic
The owner reports that their 1996 Honda Civic EJ6 is losing coolant despite replacing the head gasket, water pump, thermostat, and hoses. A pressure t...
coolant_leak head_gasket_failure engine_overheating
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Excess Gas in Cylinder Head Diagnosis for Mazda 626
1998-2002 Mazda 626
The vehicle owner reports an issue with excess gasoline in the cylinder head of a Mazda 626. Previous repairs included fixing the head, replacing the ...
fuel_injection Mazda_626 engine_diagnosis
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2000 GMC Jimmy Fuel Pressure and MAF Sensor Diagnostics
2000 GMC Jimmy
The owner of a 2000 GMC Jimmy is experiencing issues with fuel pressure readings at the schroeder valve, measuring 47 PSI with the key on and 50 PSI w...
fuel_system MAF_sensor diagnostics
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2003 Audi A4 Engine Power Fades Under Load
2003 Audi A4
The owner of a 2003 Audi A4 2.0L petrol model reports that the engine power fades while driving, particularly when the engine exceeds 2000 RPM. The ve...
Audi A4 fuel system
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2004 Pontiac Grand Am Stalling Issue
2004 Pontiac Grand Am
The owner reports that their 2004 Pontiac Grand Am with a 3600 V6 engine has been hard to start lately and requires keeping the RPMs up to prevent sta...
Pontiac Grand Am 3600 V6
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Cadillac Concours Oil Pan and Valve Cover Gasket Repair
1997-2002 Cadillac Concours
The vehicle owner is inquiring about the necessity of removing the transmission to replace the oil pan gasket and valve cover gasket on their Cadillac...
gasket replacement oil leak Cadillac Concours
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Loud Grinding Noise from Saturn SL2 Timing Cover
1999 Saturn SL2
The owner reports a very loud vibrating and grinding sound from the Saturn SL2, suggesting a possible issue with the power steering pump. However, the...
Saturn SL2 timing cover
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2000 Dodge Dakota Running Rough and Stalling Issues
2000 Dodge Dakota
The owner reports that their 2000 Dodge Dakota with a 4.7L engine and 192,000 km suddenly started running very roughly after a quick stop. They manage...
Dodge Dakota P0202
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2000 Lincoln Continental Stalling Issues Diagnosis
2000 Lincoln Continental
The owner reports that their 2000 Lincoln Continental has been stalling while driving, particularly in the morning when accelerating. After a stall, t...
Lincoln Continental Stalling
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1996 Ford F-250 Fuel Injector Issues and Diagnostics
1994-1997 Ford F-250
The owner of a 1996 Ford F-250 with a 7.3L diesel engine reports intermittent no-start conditions and reduced power. The owner has tested fuel pressur...
fuel_system injector_circuit IDM_module
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1997 Ford Explorer Intermittent Shaking Issue
1997 Ford Explorer
The owner reports that their 1997 Ford Explorer, with 160,000 miles, shakes significantly when accelerating from about 30 to 40 mph. The symptoms rese...
Ford Explorer shaking
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1999 Ford Focus Windscreen Washers Not Operating
1999 Ford Focus
The owner reports that the windscreen washers on their 1999 Ford Focus have stopped functioning after exposure to cold weather. They attempted to use ...
Ford Focus windscreen washers washer pump
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2001 Nissan Altima Intermittent Stalling and Misfire
2001 Nissan Altima
The owner reports that while idling, the engine RPM drops to a level where it feels like it might stall. The vehicle accelerates well initially, but w...
Nissan Altima intermittent misfire
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1998 Dodge Caravan Water Pump Replacement Procedure
1998 Dodge Caravan
The owner of a 1998 Dodge Caravan with a 2.4L engine is seeking assistance to replace the water pump. They are unsure of the exact location of the pum...
Dodge Caravan water pump
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1999 Ford Expedition Missing on Cylinder No. 6
1999 Ford Expedition
The owner reports that their 1999 Ford Expedition is experiencing a misfire on cylinder number 6, especially noticeable at low idle. They have replace...
Ford Expedition misfire
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1989 Ford Bronco Rough Idle Diagnosis
1989 Ford Bronco
The owner reports that their 1989 Ford Bronco with a 351 engine exhibits a rough idle, even though it has supposedly been rebuilt with about 25,000 mi...
Ford Bronco Rough Idle
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2001 Isuzu Rodeo Hesitation and Sluggish Acceleration
2001 Isuzu Rodeo
The owner reports that their 2001 Isuzu Rodeo hesitates and feels sluggish during acceleration. The vehicle jerks as it struggles to regain power inte...
Isuzu Rodeo P0300
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Page 13 of 15 - Showing specific automotive problem analysis cases