Fuel System & Pump Issues Analysis Cases

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

2006 Chrysler PT Cruiser Anti-Theft Light Flashing
2006 Chrysler PT Cruiser
The owner reports that the anti-theft light on their 2006 Chrysler PT Cruiser occasionally flashes, which coincides with the vehicle not starting. The...
Chrysler PT Cruiser anti-theft
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Check Engine Light and Buzzing Noise Diagnosis
2009 GMC Canyon
The owner of a 2009 GMC Canyon reports that the check engine light illuminated a few days ago. After changing the gas cap, the light turned off but re...
GMC Canyon check engine light
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2007 Chrysler PT Cruiser Rough Running at Idle
2007 Chrysler PT Cruiser
The owner reported that the check engine light illuminated and the vehicle runs rough at idle speed. However, it performs well during regular driving ...
Chrysler PT Cruiser misfire
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Fuel Pump Replacement Guide for 2005 Mazda 3
2005 Mazda 3
The vehicle owner reported the check engine light illuminated approximately 6-8 months ago. After routine maintenance, a mechanic indicated that the f...
fuel pump Mazda 3 fuel system
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2007 Chevrolet Tahoe Z71 Misfiring Diagnosis
2007 Chevrolet Tahoe Z71
The owner of a 2007 Chevrolet Tahoe Z71 reports intermittent misfiring occurring two weeks after purchase. Despite servicing which included new axles,...
Chevrolet Tahoe misfire
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2005 Buick Rainier Fuel System Diagnosis
2005 Buick Rainier
The owner of a 2005 Buick Rainier is experiencing an issue where the vehicle idles up and then dies suddenly without any warning. There are no check e...
Buick Rainier fuel system
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Power Steering Pump Leak Diagnosis and Repair
2006-2007 Mazda 3i
The owner of a 2007 Mazda 3i 2.0 is replacing the engine from a 2006 Mazda 3i 2.0 and has recently installed a new rack and pinion. After hooking up t...
Mazda power steering pump leak
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1990 Cadillac Deville Emissions Failure Diagnosis
1990 Cadillac Deville
The owner reports that their 1990 Cadillac Deville is failing smog tests, running significantly richer than the allowed limits. The vehicle's emission...
Cadillac Deville emissions
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1993 Dodge Stealth Engine Stalling Issue
1993 Dodge Stealth
The owner of a 1993 Dodge Stealth reports that the vehicle ran fine for a month after purchase. Now, when turning the key, it clicks and the engine st...
Dodge Stealth fuel system
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2006 Ford F-150 Engine Misfire Diagnosis
2006 Ford F-150
The owner reports a misfire in cylinder #5 of their 2006 Ford F-150 with a 5.4L engine. They have already replaced the ignition coil and spark plug, b...
Ford F-150 misfire fuel injector
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2006 Chevrolet Epica Black Smoke Under Acceleration
2006 Chevrolet Epica
The owner reports that after overhauling the engine and replacing the second oxygen sensor, heavy smoke from the exhaust stopped. However, significant...
Chevrolet Epica black smoke
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1992 Honda Prelude Dies Out While Driving
1992 Honda Prelude
The owner reports that their 1992 Honda Prelude, with a 4-cylinder manual transmission and around 150,000 miles, experiences a sudden loss of power wh...
Honda Prelude fuel system
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Intermittent Power Loss and Stalling Issue
2006 Chevrolet Uplander
The owner of a 2006 Chevy Uplander reports experiencing minimal power and occasional stalling when accelerating from a stop. After taking the vehicle ...
Chevrolet Uplander O2 Sensor
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1994 Cadillac El Dorado Stalling Issue Diagnosis
1994 Cadillac El Dorado
The owner reports that the 1994 Cadillac El Dorado runs well for several days but suddenly stalls when the accelerator is pressed, resulting in a loss...
Cadillac El Dorado fuel system
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1990 Subaru Legacy Injector Power Issue Diagnosis
1990 Subaru Legacy
The owner reports that their 1990 Subaru Legacy was running with a misfire. After using a scope to listen to the injectors, it was found that two of t...
Subaru Legacy injectors
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1996 Pontiac Grand Prix Intermittent Stalling Issues
1996 Pontiac Grand Prix
The owner reports that their 1996 Pontiac Grand Prix SE with a 3.1L V6 engine intermittently stalls while driving. The stalling occurs suddenly withou...
Pontiac Grand Prix stalling
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1997 Ford Escort Engine Power Loss on Right Turns
1997 Ford Escort
The owner of a 1997 Ford Escort reports experiencing significant engine power loss during right turns. The issue occurs intermittently, particularly w...
Ford Escort engine performance
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1992 Ford Mustang Injector Issues Diagnosis
1992 Ford Mustang
The owner of a 1992 Ford Mustang with a V8 engine reports that the fuel injectors are not functioning. Despite having fuel pressure at the rail and a ...
Ford Mustang injectors
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