Fuel System Fault Analysis Cases
Comprehensive fuel system diagnostics including fuel pump failures, delivery issues, fuel economy problems, and injection system faults.
Browse by Specific Problem
1990 Mazda 626 Fuel Gauge Not Functioning
1990 Mazda 626
The owner of a 1990 Mazda 626 has reported that the fuel gauge was functioning initially but has since stopped registering fuel levels. After a few da...
View Analysis →
2005 Ford Focus Fuel Range Estimation Issues
2005 Ford Focus
The owner of a 2005 Ford Focus reports a significant drop in fuel economy and range estimation after a near accident on the motorway. Previously, a fu...
View Analysis →
2007 Saturn Ion 2 Misfire and Emissions Issues
2007 Saturn Ion 2
The owner of a 2007 Saturn Ion 2 reports that the emissions light remains on and a misfire has been detected in cylinder 3. The vehicle is consuming t...
View Analysis →
2007 Hyundai Accent Fuel Pump/Regulator Issues
2007 Hyundai Accent
The owner reports a persistent issue with their 2007 Hyundai Accent where the check engine light is now always on. They have experienced misfire codes...
View Analysis →
2007 Honda Civic A/C Intermittent Cooling Issue
2007 Honda Civic
The owner reports that the A/C in their 2007 Honda Civic intermittently blows hot air instead of cold. When functioning properly, the A/C blows cold a...
View Analysis →
Vapor Lock Issue on 1940 Ford with Chevy 502 Engine
1940 Chevrolet 502 Engine
The owner of a 1940 Ford Deluxe with a Chevy 502 crate engine is experiencing stalling issues when the engine temperature gauge reads 195-200°F. Despi...
View Analysis →
1992 Toyota Celica Fuel Delivery Issue Diagnosis
1992 Toyota Celica GT
The owner of a 1992 Toyota Celica GT convertible reports that the vehicle stopped running suddenly. It cranks but does not start. They disconnected th...
View Analysis →
2008 Suzuki Reno High Fuel Consumption Diagnosis
2008 Suzuki Reno
The owner reports excessive fuel consumption of 10 liters per 20 kilometers. Previous maintenance includes cleaning injectors, replacing fuel filters,...
View Analysis →
2005 Dodge Caravan Fuel Gauge and Pump Diagnosis
2005 Dodge Caravan
The owner reports that the fuel gauge on their 2005 Dodge Caravan reads full when the tank is filled but drops correctly until it reaches 1/4 tank. Be...
View Analysis →
1993 Chevrolet S-10 Electrical Shutdown Issue
1993 Chevrolet S-10
The owner replaced the fuel pump two weeks ago, and after starting the truck today, it shut down immediately when the heater was turned on. This has h...
View Analysis →
1993 Toyota T-100 Fuel Pressure Loss After Shutdown
1993 Toyota T-100
The owner reports that the truck starts fine when cold but fails to restart after reaching operating temperature unless starter fluid is used. The sym...
View Analysis →
Fuel Filter Replacement Procedure for 2009 Kia Spectra
2009 Kia Spectra
The owner of a 2009 Kia Spectra is looking to replace the fuel filter but is unsure of its location and the proper procedure for replacement. They hav...
View Analysis →
Fuel Filter and Pressure Regulator Location Diagnosis
2005 Dodge Ram 1500
The owner of a 2005 Dodge Ram 1500 with a 3.7L engine is inquiring about the location of the fuel filter. They are looking for detailed information on...
View Analysis →
1994 Acura Legend Dies at Half Tank
1994 Acura Legend
The owner of a 1994 Acura Legend Coupe reports that the vehicle dies when the fuel gauge reads halfway. The fuel light does not activate even though t...
View Analysis →
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...
View Analysis →
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...
View Analysis →
1990 Ford F-650 No Start After Fuel Pump Replacement
1990 Ford F-650
The owner reports that after replacing the external electric fuel pump, the 1990 Ford F-650 starts with difficulty, runs for a couple of minutes, then...
View Analysis →
1990 Nissan Sentra Won't Start - Injector Issue
1990 Nissan Sentra
The owner reports that their 1990 Nissan Sentra cranks but does not start. They confirmed that the fuel pump activates when the key is in the 'run' po...
View Analysis →
Page 2 of 8 - Showing automotive fault analysis cases