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Since the fuel pump draws a relatively large amount of current, the relay can drive the pump without having to put a HUGE power source inside the computer. Also, if something happened to the fuel pump that creates a large power drain, the relay can take the stress and you don't need to worry about replacing a rather expensive computer.
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What does a fuel pump relay switch look like?
The fuel pump relay switch looks like the normal electric switch. The function of fuel pump relay switch is turn the fuel pump on.
How do you reset the fuel pump relay on 2005 dodge caravan?
There is no reset function on a fuel pump relay. It is controlled by the engine computer.Dodge does not use inertia/reset switches.There is no reset function on a fuel pump relay. It is controlled by the engine computer.Dodge does not use inertia/reset switches.
What is an explanation of relay 913157 function?
The fuel pump relay, is controlled by the EEC module, which provides power to fuel pump under various operating conditions. When ignition is in "OFF" position, EEC power and fuel pump relay contacts are open. After engine starts, power to fuel pump is supplied through fuel pump relay. EEC module senses engine speed and shuts off fuel pump relay when engine stops.
Why doesn't electricity get to the fuel pump in a 1995 Mercedes 320E?
Check fuse no 6. 20Amp located under the seat that is the fuel pump relay fuse. also check the function of the fuel pump relay itself.
Does the 2005 pt crusier have a fuel pump relay?
A 2005 PT Cruiser does have a fuel pump relay. They have a fuel pump relay rather than a fuel pump switch. The fuel pump relay is located in the fuse box.
What are the symptoms of a bad fuel pump relay?
The main relay and the fuel pump relay are the same. Take the fuel pump relay and swap it with the main relay and see if that will help you....
If fuel pump relay is bad will fuel pump still work?
If the relay is bad, then the fuel pump will not work.
Does the fuel pump work through a relay?
Yes, it is a fuel pump relay.
How do I know if I have a bad Fuel pump or fuel relay?
Bypass the relay and if the pump works the relay is bad.
What would keep the Fuel pump relay from working the pump fuel?
Bad relay, No power to relay, Wiring from relay to pump and our most likely problem is, the fuel pump is bad. changed it already
How do you know when the main relay on a 1994 acura legend goes bad?
If the main relay goes bad the fuel pump will not function. This has caused many a person to replace the fuel pump only to find out later that the culprit was the Main Relay and not the fuel pump at all. If you suspect the main relay is bad just replace it to be sure.
How do you tell bad fuel pump on 2001 fuel pump?
A fuel pressure test done at the fuel rail will verify the condition of the fuel pump. Before going to that much trouble check the fuse, and fuel pump relay. If either one is defective the fuel pump will not function.
