Fuel System & Pump Issues Analysis Cases

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

1998 Audi A8 Engine Mechanical Problem Diagnosis
1998 Audi A8
The vehicle owner reports that the 1998 Audi A8 is experiencing an engine mechanical issue, primarily showing no injector pulse even though there is g...
Audi A8 injector pulse
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Engine Shaking Diagnosis for 1994 Nissan Sentra
1994 Nissan Sentra
The owner reports that the engine shakes regardless of whether it is cold or warm. The problem persists even after replacing spark plugs and ignition ...
Nissan Sentra engine shaking
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Timing Belt and Water Pump Replacement Recommendation
1998 Dodge Neon
The owner recently purchased a 1998 Dodge Neon coupe with a 2.0L DOHC engine. It has 69,593 miles now, having increased from 67,108 miles since purcha...
timing_belt water_pump maintenance
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2006 Jeep Laredo Hesitation Issue Diagnosis
2006 Jeep Laredo
The owner of a 2006 Jeep Laredo with 140,000 miles reports that the vehicle hesitates during driving. The RPMs are not steady, but there are no warnin...
Jeep Laredo Fuel System
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2007 Chrysler Pacifica Stalling Issues
2007 Chrysler Pacifica
The owner of a 2007 Chrysler Pacifica reports that the vehicle starts but dies shortly after, unless gas is applied. It is experiencing sputtering dur...
Chrysler Pacifica stalling
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2008 BMW 318 No Heating and High Engine Temperature
2008 BMW 318
The owner reports that their 2008 BMW 318 is experiencing high engine temperatures and no heating in the cabin. The issue began suddenly, and they not...
BMW cooling system thermostat
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Intermittent Stuttering During Acceleration
2009 Saturn Aura
The owner reports that the 2009 Saturn Aura with a 2.4L engine experiences stuttering while gently accelerating, particularly noticeable between 45-75...
Saturn Aura stuttering
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Engine Hesitation and Misfire Diagnosis on 2005 Ford Escape
2005 Ford Escape
The owner of a 2005 Ford Escape reports experiencing hesitation while driving in overdrive, particularly after the engine has warmed up. The check eng...
Ford Escape hesitation misfire
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2008 Toyota Fuel Pump Diagnosis After Filter Replacement
2008 Toyota Other
The owner replaced the in-tank fuel filter due to the vehicle shutting off while driving and the check engine light illuminating. After the replacemen...
fuel_system diagnostics Toyota
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1991 Buick Skylark V6 3300 Won't Run Diagnosis
1991 Buick Skylark
The owner reports that their 1991 Buick Skylark with a V6 3300 engine won't run after sitting for two years. The car cranks but immediately shuts off....
Buick Skylark V6
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2005 Ford Explorer Fuel Vent Solenoid Diagnostic
2005 Ford Explorer
The owner recently replaced the fuel vent solenoid on their 2005 Ford Explorer due to a gas cap code. After the replacement, the vehicle has been expe...
Ford Explorer Fuel System
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2005 GMC Savana Gas Fill Problem Diagnosis
2005 GMC Savana
The owner of a 2005 GMC Savana reports issues filling the gas tank, experiencing possible vapor lock. The gas tank seems to overflow and fuel may ente...
GMC Savana EVAP
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Fuel Filter Location for 2008 GMC Yukon
2008 GMC Yukon
The owner of a 2008 GMC Yukon is looking for the fuel filter location. They have heard conflicting information about whether it is in the tank or alon...
fuel_filter GMC Yukon
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1990 Ford Crown Victoria Trouble Codes 42 & 92 Analysis
1990 Ford Crown Victoria
The owner installed a 1990 Ford 5.0L 302 EFI engine in a 1941 Ford with a C-4 automatic transmission. After rebuilding the engine and replacing all se...
Ford Crown Victoria EGR
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1994 Jeep Cherokee Cooling System Failure Analysis
1994 Jeep Cherokee
The owner of a 1994 Jeep Cherokee with an inline 6 reported that while accelerating to pass another vehicle, they heard a pop and saw white smoke in t...
Jeep Cherokee cooling system
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1990 Ford Tempo Lurching and Loss of Power Diagnosis
1990 Ford Tempo
The owner of a 1990 Ford Tempo with a 2.3L 4-cylinder engine is experiencing sudden lurching and loss of power while driving. This issue began on Sept...
Ford Tempo Lurching
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Fuel Injection Failure in 1990 Ford Econoline RV
1990 Ford Econoline
The owner of a 1990 Ford Econoline RV reports that the engine is not cranking. There is no power to either of the fuel pumps, but both work when power...
fuel_system electrical_system Ford_Econoline
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1992 Subaru Loyale Fuel Pump System Diagnosis
1992 Subaru Loyale
The owner reports that after replacing the fuel pump and relay, the fuel system on their 1992 Subaru Loyale wagon still does not operate. They suspect...
fuel system Subaru Loyale diagnostics
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