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Fuel Pump I don't know much about cars at all, but recently my fuel pump went bad on me and I found someone to replace it. Next thing I know he calls and says the entire exhaust system is rusted and can't replace my fuel pump. I was wanting to know, how true is this? Can I have my fuel pump replaced without my exhaust being there or will I have to get the exhaust system taken care of first before the pump is replaced? When my fuel pump was working, I never noticed anything else wrong with the car.
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let me teach you fuel pumps , gasoline
some cars run the pump for 3 seconds key on. or running.
other only allow the pump to run cranked or running,
toss a coin , or read the service manual that will answer this..
first check fuses. not relays.
then check for 12 vdc at the pump cranked,
The ECU runs the relay and the pump, the ECU decides to run the pump or not.
A shop uses this thing called a voltmeter, DMM to measure voltage at the 2 pump pins cranked over.
and work from there, if voltage is good then pump runs and what is next FUEL PRESSURE. is next, and a bad fuel filter kills that.
or bad FPR..
Better to test the pump relay with a meter or a test light. The relay could have failed.
The relay and the fuse should be in the fuse box near the battery.
Check your owners manual for details.
Does it crank but not fire?
I would do the cheap things first - ohm out the plug wires, check the plugs, then the cap/rotor.
The fuel pump relay (the one behind the glove box) is known to go bad - I removed mine and reflowed the solder joints and mine never failed again - or you can replace that.
If your car is dead, check the negative cable to the battery that it's not corroded on either end.
Not likely......no-start can be a LOT of things.First check fuel pump reset button. Check if you're getting spark,because with fuel and spark,it should run.don-ohio
Hi, if the car turn over, and it don't start. Then it is like the
engine don't get fuel. Or bad a spark plugs. Most common problem is the
fuel pump going bad.
It could also be a bad fuse, but a easy way to check if the fuel pump is
ok is to have someone stand at the back of the car when you turn the
ignition. The fuel pump should make a buzzing sound for a few seconds.
And if you don't start the car right away the fuel pump will stop.
If you don't hear any buzzing from the fuel pump/fuel tank then you have a bad fuel pump............
The LS Lincoln Has 2 Fuel Pumps . The One On The Drivers Side Is Called A Transfer Pump , It Pumps Fuel From Drivers Side Of Tank To Passenger Side Both Pumps Have Sending Units On Them The Transfer Pump Sending Unit Was Bad
You have two pumps,I guess you know that ,if you already did one. Did you check fuel pressure at the rail and check out the electronic pressure regulator? What codes are coming up and do they stay set?
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