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Re: 2003 mitsubshi galant
You can check to see if the fuel pump is getting electricity by using a test light to the plug harness going to the tank, just get a good ground on your test light and press the point of the test light through the wires or unplug the harness if you can get to it, and turn on the ignition and see if you get electricity . If you do and the pump does not come on, then drop the gas tank and replace the fuel pump if its located inside the tank, which it probably is... alot of vehicles have gone to pumps being inside the gas tank now. if you aren't getting any electricity to the harness from the engine side of it, then check with a auto zone and see if they have a part location for the fuel pump relay. Some are under the hood in a fuse box there and the lid on the box is marked alot to tell you what is what and where. If not get a chilton's manual for your specific car, it should have it in there.
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repairpal.com > Cars > Mitsubishi > Galant Information on the 2003 Mitsubishi Galant, including known problems, recalls, user ...2002 Mitsubishi Galant ... it will crank but not start not getting any spark or fuel what can you suggest. would like . ... The fuel return line fitting at the fuel pump may be restricted, causing excessive fuel pressure in the fuel injection system.
Hi Matt, despite it being difficult to diagnose from a distance, you've given some good information. After you replaced the fuel pump, do you hear it begin to build up pressure when you turn the key on? If not, then one likely cause is the fuse for the fuel pump. If the fuel pump is operating properly, the the issue would probably be related to the injectors - that's where I'd look on my car. And because it's not likely that all of the injectors have failed at once, then the fuse or a relay would be the likely culprit.
The fuel pump relay is located below the dash, in the center console area bolted to the vertical metal uprights that support the dash. Depending on production date, the MFI and fuel pump relays may come together or separate. If together, the relay comes as a module consisting of both relays attached together on a metal bracket. The relays are normally $27 each.
Power to the pump is provided by the relay for the first 3 or 5 seconds to build pressure back up to start. Once the 5 seconds are past, the relay is grounded by the computer IF it sees oil pressure or crank signals. This helps prevent a fire if the car is in a wreck. If it still won't start with the pump relay bypassed, you would check for spark and see if the computer is getting a crank signal.
Turn key on but dont turn motor listen for humming on either side in back of car,.if you hear nothing your fuel pump or fuel pump relay needs to be replaced..Also if you tend to run car to almost empty your fuel filter might be plugged. Running close to empty causes all the rust from the bottom of the tank to plug the filter.
Yes, it has a fuel filter, and if after you replace it you still have trouble, you might want to do a series of tests.
Check that you actually have power to the fuel pump. You can do this by taking the plug off the fuel pump and, turning the key to the on position, testing the plug with a volt meter.
Prime the fuel rail. There's a bolt in the rail that will let the air out when twisted.
Have the fuel injectors cleaned.
Check for blown fuses.
The problem with fuel is that there are many sensors that can trigger the computer to shut down fuel system. For instance, some models will shut down the fuel system if there is low oil pressure to save the engine. If all else fails, taking the car to a mechanic may be the only thing you can do.