• Auto Parts and Repairs
  • Fuel Pumps
  • Chevy Suburban
  • Ford Explorer XLT

How can you tell if a fuel pump is bad or if it is the fuel pump relay switch?

User Avatar

Wiki User

βˆ™ 2010-08-13 01:47:18

Best Answer

You can swap relays within the relay center with another relay that matches, but in most cases it is seldom the relay At Fault, it is probably a bad fuel pump.

2010-08-13 01:47:18
This answer is:
User Avatar

Add your answer:

Earn +5 pts
Q: How can you tell if a fuel pump is bad or if it is the fuel pump relay switch?
Write your answer...

Related Questions

How can you tell if the fuel pump relay switch is good on a 93 buick century?

Swap it with another like relay.

Where is your fuel rely switch for Chevy S10 it is a 97?

Need to know what year S10 you have to tell you where the fuel pump relay is.

How can you tell if the fuel relay is bad?

Swap the fuel pump relay with another like relay.

How do you know if a fuel pump switch is bad on a 2001 ford expedition?

How Can You Tell If The Fuel Pump Relay Switch Is Bad? Have a mechanic do a fuel pressure check this will tell you if the pump is working properly or on most vehicles you should be able to hear the pump kick on. You can also have the wiring checked to see if the pump is getting power...

How can you tell if your fuel pump shut-off switch is bad?

You can tell if your fuel pump shutoff switch is bad, if the fuel pump does not shut off when you flip the switch. You can also tell if the switch is bad by looking at the wire connections.

How do you tell a fuel pump relay is bad?

Swap it with another like relay.

What would make the fuel pump fuse lose power on a 2000 Cadillac catera relay has power runs for about 4 miles then loses power Relay is good and fuel pump is good.?

van trouble please help mei have a 1996 Honda odyessy i cant get any power going to my fuel pump could it be my fuel relay switch if so can you please tell me where to find it on my van

Where is the relay for the fuel pump on a 1990 bronco?

The relay is in a block of relays on the left side of the engine compartment just back of the air cleaner. The relay cover should tell you what position the fuel pump relay is in.

Where is the location of the fuel pump switch in a 1997 Chevrolet Tahoe?

I can tell you the fuel pump is in the gas tank.

How do you disable Chevy Silverado fuel pump?

You will have to remove the fuel pump relay or the fuse for the fuel pump. You did not say what year it was, so I can't tell you where it is. SORRY.

After replacing the fuel pump relay oil pressure sending unit and distributor how can you tell if the ECM on your 1988 suburban is preventing the fuel pump relay from turning the fuel pump on?

I am tackling the same thing on a 1994 Ford Arerostar van. I think that the wire from the fuel pump relay is also connected to the Powertrain Control Module. ( The book makes mention that that the PCM controls the fuel pump! ) If this is true then the PCM may place a "LOW" on that line if it wants the pump off, preventing the relay to pass the voltage to the initeria switch and then the pump??? ( I'll let you let me know? )

How do you tell if fuel pump relay is out on 300zx?

Replace it with a new one.

Where is the location of the fuel pump relay switch on a 2001 Mitsubishi galant?

are you looking for fuel pump relay or fuel pump cut off switch.the fuel pump relay is under the hood close to the battery(having to be generic here because depending on the engine size battery could be on left or right) in a black box with printed nomeclature about what is inside.(fuses,relays, etc.) fuel pump cut off switch is (if it has one) usually mounted in trunk,kick panel on passenger side of car. Easy way to find if if you have owners manual to car it will tell you there.

How can you tell if you need a new fuelpump?

well if you have fuel and a new filter a good fuel pump relay and the wires going to the fuel pump have power and no fuel pressure you need a fuel pump

How do you tell if the fuel pump is bad or if it is the fuel pump relay?

If you turn on the ignition key without starting the engine you should hear the fuel pump run for a few seconds. If you do not check the fuel pump fuse and replace the relay before proceeding. If the fuse is good and the relay is good then you know the pump is more than likely defective.

How do you tell if fuel pump relay is out?

The fuel pump will not come on. Of course this could be a blown fuse or the pump itself has failed. Check the fuse and if it is good then install a new relay to see if that solves the problem. If not the pump is bad.

Where is fuel pump relay located on 1999 Malibu?

i am looking for fuel pump for 99 Chevy Malibu where fuel loacation please tell me now

How do you tell if the Fuel pump relay is bad on a 1998 Chevy Malibu?

if its bad fuel pump will not work,exchange it with another relay of exact same size to check if that's the problem..

1987 crown Victoria new fuel pump wont pump fuel can you tell me what the problem is?

Problem could be one of many things. First and foremost is the intertia switch. Check the fuel pump inertia switch (in trunk mounted to driver side trunk arm) to make sure its not kicked. If the problem is not there, than either the fuel pump relay is bad or there is a bad wiring connection in the circuit.

How do you tell if the fuel pump is bad in a 1990 F150?

iIf it is a electric fuel pump you cam easly tell if it is bad by simply turning the key to the on possion carefull not to engage the starter. lissen for the pump to run for 3 sec do this three or four times if you cannot here the pump trying to prime then it is bad.AnswerIf the pump is electric and i am sure it is turn the key to the on possion, careful not to enguage the starter. listen for the pump to prime {about 3 or 5 sec} if you do not here the pump then it is bad.========================================================Start with the basics :Has the fuel pump inertia switch ( shut off switch ) " tripped "Have you checked the fuse for the fuel pumpWhat about the fuel pump relay

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.

1994 olds cutlass cierra has new fuel pump and relay and still not getting fuel?

try bypassing the fuel pump, and directly injecting fuel, this will tell you if the problem is the pump, the lines, or further ahead

Where is the fuel pump relay in a 95 oldsmobile 88 royale?

Under the hood inside the black box marked "fuses" or "fuses and relays", the inside of the cover to this box will tell you which one is the fuel pump relay, also a little hint if you think the relay is bad switch it out with the a/c compressor realy just temporarily and try to start it, they are the same relay and perform the same function.

How do you tell if your fuel pump shut off switch is triped?

There should be a warning light in your dash , something like FUEL RESET Also , the button on the top of your fuel pump shut off switch ( inertia switch ) will have popped up

Is there a fuel cut off switch on a 1995 Mitsubishi Diamante wagon and if so where is it?

NO...but there is a fuel tank pressure switch that tell your fuel pump when it has the proper pressure to turn the pump off once pressure is achieved.