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Services >> Fuel System Services >>
Fuel System Components
Fuel System Components
What It Does
The fuel and engine management system supplies the proper mixture of air and gasoline to the engine while reducing harmful fuel vapor and exhaust pollutants.
Did You Know?
According to the Car Care Council, a little preventive maintenance can save you from unnecessary fuel costs.
For example:
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If your engine needs a tune-up, it could be wasting about 15% or more of its fuel |
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If the tires are just eight PSI under-inflated, the rolling resistance can run you several dollars a month |
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A stuck thermostat reduces engine efficiency by another 7%, leading to several dollars a month in unnecessary expenditures |
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Wheels that are just one-quarter inch (one centimeter) out of alignment will waste fuel as well |
Together, these unnecessary fuel costs can total hundreds of dollars a year. Clearly, a little preventive maintenance not only save you money in the long run, but it helps extend vehicle life and increase vehicle safety.
1
Mechanical Fuel Pump
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Function:
Function: Mounted to the engine, mechanical fuel pumps use a diaphragm system to transfer fuel from the fuel tank to the carburetor.
Signs of Wear:
Sluggish starting or inability to start engine, rough-running engine, stalling, reduced fuel economy.
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2
Carburator
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Function:
Delivers fuel into the engine's cylinders.
Signs of Wear:
Sluggish starting or inability to star engine, rough-running engine, stalling, reduced fuel economy.
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3
Fuel Sender Unit
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Function:
Monitors fuel levels and transmits the information to the fuel gauge.
Signs of Wear:
Inaccurate fuel gauge reading.
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4
Fuel Injector
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Function:
Sprays fuel into the engine's intake manifold or cylinders.
Signs of Wear:
Sluggish engine performance, poor acceleration, emission non-compliance.
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5
Mass Air Flow Sensor
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Function:
Measures the amount of air entering the engine to determine the most efficient air/fuel mixture for achieving clean burns.
Signs of Wear:
Engine hesitation, stalling, decline in engine performance, "Service Engine Soon" light illuminates.
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6
Idle Air Control/Linear Flow Valve
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Function:
Controls the amount of air that bypasses the throttle plate in order to regulate the idle engine speed.
Signs of Wear:
Signs of Wear: Irregular idle, stalling.
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7
Throttle Position Sensor
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Function:
Electronically informs the PCM of the throttle's angle. The PCM uses this input to regulate the fuel and ignition system.
Signs of Wear:
"Service Engine Soon" light illuminates, poor engine performance.
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8
Fuel Pressure Regulator
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Function:
Controls the fuel pressure going to the fuel injectors.
Signs of Wear:
Engine knock, lack of power, engine smoke, increased exhaust emissions, poor fuel economy.
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9
Modular Fuel Pump
(includes Sender)
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Function:
Located inside the fuel tank, the fuel pump delivers fuel from the tank to the fuel injectors or carburetor while the sender monitors fuel levels and transmits the information to the fuel gauge.
Signs of Wear:
Difficult engine starting, slow acceleration qualities, intermittent power loss, inaccurate fuel gauge reading (Sender).
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10
Fuel Strainer
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Function:
Prevents larger contaminants inside the fuel take from entering the fuel line.
Signs of Wear:
Poor acceleration, low power..
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11
In-Line Fuel Pump
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Function:
Located in the fuel line, an in-line fuel pump transfers fuel from the fuel tank to the fuel injectors or carburetor.
Signs of Wear:
Poor engine starting characteristics, slow response when accelerating, intermittent power loss, excessive noise and vibration while driving.
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Return to Fuel System Services
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Fuel System
Servicess |
Computer Reprogramming
Diagnosis
Carburetors
Gas Fuel Injection
Fuel Lines
Fuel Hoses
Fuel Tanks
Fuel Gauges
Fuel Pumps
Fuel Filters
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