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It will go bad suddenly. If the fuel pump is running, which you can tell by listening at the fuel filler with the cap off and a helper turning on the ignition without starting the engine, then the relay is good. If you hear nothing then either the pump or relay is bad or you have a blown fuse. If you hear nothing check the fuse first. If it is good replace the relay. If it still does not run the pump is bad. Even if the pump is running that does not mean it is good. It may be running but not pumping any fuel. A fuel pressure test will verify the pump's condition. Be sure and replace the fuel filter either way.
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Do fuel relays go bad slowly or all at once?
i personally have never had a relay go bad
Which relay is actually the fuel pump relay 97 grand am 3.1?
the one that says fuel pump relay, on the fuse block cover, they are all labled
Can a fuel pump relay cause a car to stall after starting?
A fuel pump relay switch can cause your car to stall after starting. A malfunctioning fuel pump relay switch can cause your car to not start at all.
What else can be done after the fuel filter fuel pump relay and fuel pump have all been replaced with new parts and car is still only cranking?
main engine relay should be replaced with fuel pump relay. Are you sure your fuel filter is not plugged.
Why does my 1994 probe gt have spark but no fuel?
Is your fuel pump working? Did you blow your Fuel Pump relay in the relay box? Did you put fuel in it? Is your fuel filter clogged? Check all those things and get back to me
Will the fuel pump relay make the fuel pump cut off and on?
yes, the purpose of the relay is to signal the pump to turn on and off, if its not working at all the fuel pump will not turn on.
Where is the fuel pump relay located in a 1984 mercury cougar?
In the relay box with all the other relays.
Does a 93 dodge colt have a fuel pump relay switch?
Yes it does. should be locaed behind radio Usually one bolt to take out looks like a metal casing. The fuel pump relay is a all in one relay. fuel pump, ignition, pcm all in one.
Can a fuel pump relay switch control the way a car starts and the way the fan comes on and off?
A defective fuel pump relay will cause starting problems. In fact if the relay fails the engine will not start at all. But the fuel pump relay has nothing whatsoever to do with the cooling fan.
What do you check before replacing fuel pump in a 1997 explorer?
Fuel Pump fuse, relay, fuel filter, and all connections. A fuel pressure test will verify a defective fuel pump, or if it is simply not running, and has current to it.Fuel Pump fuse, relay, fuel filter, and all connections. A fuel pressure test will verify a defective fuel pump, or if it is simply not running, and has current to it.
Can you bypass a fuel pump relay?
No You Will Not Be Able To Do This. The Relay Is Required To Make Your Electrical System Work For The Fuel Pump. The Relay Is A Switch Unto Its Self. It Shuts The On And Off As Required By The Fuel System. Even If You Were To Bypass It. The Pump Would Run All The Time. Suggest You Install A New Relay
Where is the fuel pump relay on a 1986 GM blazer?
Fuel injection wasn't available on K/5 blazers until 1987. Prior to that year, all blazers had mechanical fuel pumps, and would not have a fuel pump relay.
