Where is the fuel pump located on a Porsche 911?
The belly pan located underneath the car covers and protects the fuel pump. Jack up the front of the car (see Pelican Technical Article: Jacking Up Your Car ), remove this pan (see Project 59 for more details), and you should clearly see the pump.
What happens when you run out of gas in a 911?
The 911 fuel pump is a not as simple a device as one might think. The fuel actually runs through the pump and acts as a coolant and lubricant for the entire assembly. Therefore, if you let your car run out of gas, make sure that you turn off the pump immediately, or you might damage the internal components of the pump.
How to fix fuel supply in Porsche 911?
• Use only clean tools. Keep removed components dean and sealed or covered with a dean, lint-free shop towel, especially if completion of the repair is delayed. • When replacing parts, install only new, clean components. • Avoid nearby use of compressed air, and do not move the car while the fuel system is open.
How to test residual pressure in Porsche 911?
Testing for residual pressure is covered in 240 Fuel Injection. To prevent fuel from spraying on a hot engine, system pressure should be relieved before disconnecting fuel lines. One method is to tightly wrap a shop towel around a fuel line fitting and loosen or disconnect the fitting.
Where is the fuel pump on a Porsche 911?
The fuel pump on the C2/C4 is located on the passenger side under floor area just behind the front diff C4 and the fuel tank. You need to remove a steel cover plate to access the fuel pump.
The 911 fuel pump is a not as simple a device as one might think. The fuel actually runs through the pump and acts as a coolant and lubricant for the entire assembly. Therefore, if you let your car run out of gas, make sure that you turn off the pump immediately, or you might damage the internal components of the pump.
Where is the check valve on a 911?
Many 911 fuel pumps will have a check valve screwed into the outlet of the pump body. If yours has one, it’s a good time to replace this inexpensive part.
What’s the fuel gauge on a Porsche 911?
One method is to tightly wrap a shop towel around a fuel line fitting and loosen or disconnect the fitting. ^ Connect fuel gauge ( Porsche special tool P 378 or equivalent) to fuel rail test port (arrow) and tighten to 12 Nm (9 ft-Ib). The fuel pressure gauge should have a range of 0 to 5 bar (0 to 75 psi).
Why is the fuel pump on my Porsche not working?
Check it out by connecting a fuel pressure gauge and observing the fuel pressure readings. The fuel pressure will drop abruptly which indicates that the fuel pumps below the rear seat are beginning to fail. The fuel pump on a Porsche 911 is working, but why isn’t fuel reaching the injectors?
How do you drain a Porsche 911 fuel tank?
— Insert hose into tank opening and use an approved transfer pump and container to pump out fuel. Be sure the container is large enough to hold the volume of fuel that is to be pumped out of the tank. As an alternative, the drain plug (alien head) at the bottom of the fuel tank can be removed to drain tank.
Can a fuel pump be removed from a Porsche 911?
Loosen the large hose clamp holding the pump body in place. The pump body is now free to be removed from the car. If there is a rubber cushion between the hose clamp and pump body, save it for re-installation later. Many 911 fuel pumps will have a check valve screwed into the outlet of the pump body.
What to do if your Porsche 911 engine wont start?
2. Remove the air cleaner cover and air filter, and spray some fuel into the intake. You will have to hold open the little “door” inside there with something. If it starts briefy then dies you probably have a fuel problem. 3. You can jumper a hot wire to the fuel pump and listen to it whir to prove that it’s working.
Testing for residual pressure is covered in 240 Fuel Injection. To prevent fuel from spraying on a hot engine, system pressure should be relieved before disconnecting fuel lines. One method is to tightly wrap a shop towel around a fuel line fitting and loosen or disconnect the fitting.
— Insert hose into tank opening and use an approved transfer pump and container to pump out fuel. Be sure the container is large enough to hold the volume of fuel that is to be pumped out of the tank. As an alternative, the drain plug (alien head) at the bottom of the fuel tank can be removed to drain tank.