Question about 2003 Ford Expedition

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2003 expedition starts up then shuts off

2003 expedition starts up and shuts off it wont stay on?

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  • ppalmer3 Jan 27, 2009

    a vacumm hose was lose thank you.

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Did you pull off battery cables without saving memory from computer chip, you just lost the whole memory from the microprocessor chip. It shuts down because it doesn't have any command memory that tells the sensors for the fuel pump,fuel injectors,and all sensors that are suppose to be running normally are receiving a " miss firing " command from the microprocessor, so when you start up your car it will shut down from the command from the on board computer(fuel pump,fuel injectors,timing ratio) that all work on SENSORS from each different modules in your ford. You have to find a OBD 1or 2 engine analyzer to restore your "BACK TO LIFE" memory codes to get the car back online and probably will have to run your car 3x from 0 to 60 on the freeway no braking stops, so your computer can remember the "BACK TO LIFE" memory and restore the car to normal conditions. Go to ford website and look under TROUBLE SHOOTING. That's it my friend!!!!!! ALOHA

Humphrey

Posted on Jan 26, 2009

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Sounds like the idle air control motor very common also try to have some one keep it running listen for vacumm leak in back of engine.pcv valve hose sometimes splits.

Posted on Jan 25, 2009

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SOURCE: 2003 ford expedition will not start

check battery post terminals for looseness, or battery voltage for failure

Posted on Apr 13, 2009

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TUrn off your vehicle; first I suggest check in the fuse panel what fuse is causing this problem, if the fuses ar ok, then you will need to take off the entire fuse panel to check harnesses connections and wires attached there.

Keep in mind that, if you stay driving or testing in a ON condition, cpould damage other components, systems or devices.

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I have an 2003 ford expedition that just stopped . i first changed fuel filter, fuel pump, cleaned injectors, changed filters, spark plugs, cleaned throtle, then had it checked further and tjhe mechanic...


Probably the inertia switch for the fuel pump..You owners manual should show you where its located..See if the button has pop up ..If it has push it back down until it clicks..If it wont stay down then hold it down and see if it will start..If it does you will have to replace it..If thats all good then check the relay for the fuel pump..

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2003 ford expedition will not start


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