How to check fuel pressure in Hyundai Elantra?
Inspect fuel leakage on connections among the fuel feed tube, the delivery pipe, and the SST components with IG ON. 4. Measure Fuel Pressure. Start the engine and measure the fuel pressure at idle. If the fuel pressure differs from the standard value, repair or replace the related part (Refer to the table below).
What are the components of the Hyundai Elantra?
Multi-Purpose Check Connector [20-Pin] 1. Engine Control Module (ECM) 2. Manifold Absolute Pressure Sensor (MAPS) 3. Intake Air Temperature Sensor (IATS) 4. Engine Coolant Temperature Sensor (ECTS) 5. Throttle Position Sensor (TPS) 16. ETC Motor
What to do if you have a fuel line problem?
Turn the ignition switch OFF. Release the residual pressure in fuel line (Refer to “Release Residual Pressure in Fuel Line”). When removing the fuel pump relay, a Diagnostic Trouble Code (DTC) may occur. Delete the code with the GDS after completion of “Release Residual Pressure in Fuel Line” work.
What are the symptoms of a bad fuel pump?
Also, the symptoms are almost exactly the same as bad/clogged fuel filter. Here are the most common symptoms of a bad fuel pump in your Hyundai Elantra: One of the most common signs that a fuel pump is going bad is a whining sound. The whining sound can indicate that the fuel pump is going out before there are any performance based issues.
Is the fuel pump on my Hyundai Elantra bad?
The symptoms of a bad fuel pump match a lot of other common problems that can occur in the Hyundai Elantra. Testing the filter and pressure on each side of it are going to be the quickest ways to rule it out.
Also, the symptoms are almost exactly the same as bad/clogged fuel filter. Here are the most common symptoms of a bad fuel pump in your Hyundai Elantra: One of the most common signs that a fuel pump is going bad is a whining sound. The whining sound can indicate that the fuel pump is going out before there are any performance based issues.
Turn the ignition switch OFF. Release the residual pressure in fuel line (Refer to “Release Residual Pressure in Fuel Line”). When removing the fuel pump relay, a Diagnostic Trouble Code (DTC) may occur. Delete the code with the GDS after completion of “Release Residual Pressure in Fuel Line” work.
When to release residual pressure in fuel line?
1. Release the residual pressure in fuel line (Refer to “Release Residual Pressure in Fuel Line” in this group). When removing the fuel pump relay, a Diagnostic Trouble Code (DTC) may occur.
What causes low fuel pressure in an engine?
1 Clogged Fuel Filter The fuel filter cleans the fuel entering the engine. 2 Bad Fuel Pump A bad fuel pump is probably the most common cause of low fuel pressure. 3 Bad Fuel Pressure Regulator The fuel pressure regulator controls the fuel pressure in the fuel rail.
Why does the fuel pump not release the fuel?
The fuel pump is able to create pressure using electricity but if it is not getting the adequate voltage of electricity, it will not be able to function properly. Consequently, the fuel will not be released at the perfect pressure and your car will lose efficiency. Although, voltage fluctuation in a car is rare, it is not uncommon.
Can a car run with high fuel pressure?
Gasoline run cars are usually not a huge threat to the environment as they do not emit harmful chemicals from their exhaust. However, if your car starts to excrete thick black smoke from the exhaust after you start it, there is definitely something wrong with the pressure in your fuel system. But in this case, it will be due to high fuel pressure.
What should the fuel pressure be on a new car?
Twist off the fuel pressure test port cap and secure a pressure gauge to the fuel pressure valve. Reconnect the negative battery cable and start the engine. Disconnect the vacuum hose again and check the gauge. It needs to read between 38 and 50 pounds per square inch.
What to do when your fuel pressure is high?
Twist off the fuel pressure test port cap and secure a pressure gauge to the fuel pressure valve. Reconnect the negative battery cable and start the engine. Disconnect the vacuum hose again and check the gauge. It needs to read between 38 and 50 pounds per square inch. High pressures indicate that the pressure regulator is malfunctioning.
What happens if the fuel pressure regulator fails?
The fuel pressure regulator controls the fuel pressure in the fuel rail. If there is something wrong with the fuel pressure regulator, it can create too low or too high fuel pressure in the rail. It is not very common that this part fails, but it can happen.