97 EXPEDITION, WOULD NOT SHIFT FROM HIGH TO LOW, TURNED OFF VEHICLE AND NOW WONT START, TURNS OVER BUT ACTS LIKE NOT GETTING GAS

Have you checked the fuel pump for any blockage? The car isnt getting any gas unless u manually pump it by pressing the pedal.. So start there
Sometimes when a engine requires excessive revving and throttle to stay afloat its a fuel supply problem. A clogged filter for example can be overcome with excessive throttle that drives the fuel pressure up enough to force it through, but it will barely trickle at idle and stall.

Usually the dead give away for fuel pump is when someone complains they have to floor it as soon as it turns over or it will die right away.

High or Low Upshift or Downshift Speed

High or Low Upshift or Downshift Speed
Checks

Cause

DEFINITION: An upshift or a downshift (or TCC apply) that occurs at a speed outside of the calibrated range. Refer to Shift Speed

ECM/PCM calibration information

Incorrect calibration in the ECM/PCM

Throttle position (TP) sensor

Misadjusted or faulty TP sensor

Its cold start issues:----
Go through the list of help links mentioned below:----

Click the link :----

Cold start problem and vehicle shudder around 2500 to 3500 rpms
http://repairhelpcenter.blogspot.com/2012/10/cold-start-problem-and-vehicle-shudder.html
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Low idle when cold out side?
http://repairhelpcenter.blogspot.com/2011/12/low-idle-when-cold-out-side.html
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Ford explorer 4.0 will not idle when cold?
http://technoanswers.blogspot.in/2012/02/ford-explorer-40-will-not-idle-when.html
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Automatic transmission shift lever hard to move on cold mornings?
http://technoanswers.blogspot.com/2012/01/automatic-transmission-shift-lever-hard.html
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Car won't start when cold?
http://schematicsdiagram.blogspot.com/2011/12/car-wont-start-when-cold.html
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It can be issue with IAC( idle air control valve) causing the problem.

There are many other possibilities causing these idle issues. Engine idles rough.

There are few help links with solutions to troubleshoot such idle issues.

I suggest you refer the link below and follow its troubleshooting details:------

Click the link below:-----

Ford Expedition IAC valve replacing

http://technoanswers.blogspot.com/2012/12/ford-expedition-iac-valve-replacing.html

Bad miss at idle?

http://technoanswers.blogspot.com/2012/01/bad-miss-at-idle.html

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Stumbling and stalling at idle after engine rebuild?

http://schematicsdiagram.blogspot.in/2012/03/stumbling-and-stalling-at-idle-after.html

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1999 Ford F-150 Idles rough and quits when gas pedal is pressed less?

http://technoanswers.blogspot.in/2012/01/1999-ford-f-150-idles-rough-and-quits.html

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Engine stumbles coming off idle when warm?

http://repairhelpcenter.blogspot.com/2012/01/engine-stumbles-coming-off-idle-when.html

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Erratic idle on car?

http://schematicsdiagram.blogspot.com/2011/12/erratic-idle-on-car.html

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Cold start problem and vehicle shudder around 2500 to 3500 rpms

http://repairhelpcenter.blogspot.com/2012/10/cold-start-problem-and-vehicle-shudder.html

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Low idle when cold out side?

http://repairhelpcenter.blogspot.com/2011/12/low-idle-when-cold-out-side.html

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GMC Sonoma Stalls and idles low

http://technoanswers.blogspot.com/2012/10/gmc-sonoma-stalls-and-idles-low.html

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GMC Idle Air Control (IAC) Valve Replacing?

http://schematicsdiagram.blogspot.com/2011/12/gmc-idle-air-control-iac-valve.html

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1996 Camry intermittent engine failure while idle?

http://repairhelpcenter.blogspot.com/2011/10/1996-camry-intermittent-engine-failure.html

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Engine quits at idle?

http://repairhelpcenter.blogspot.com/2011/10/engine-quits-at-idle.html

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Car overheats and Air blows hot at idle?

http://howtobyme.blogspot.com/2011/11/car-overheats-and-air-blows-hot-at-idle.html

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High Idle Problem

http://repairhelpcenter.blogspot.com/2012/10/high-idle-problem.html

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While stop engine idles like cylinder missing?

http://schematicsdiagram.blogspot.com/2012/01/while-stop-engine-idles-like-cylinder.html

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Idle flair is noticed on car? Rough idle? car will not idle? Erratic idle speed?

http://technoanswers.blogspot.in/2012/02/idle-flair-is-noticed-on-car-rough-idle.html

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High rpm in neutral? Inconsistant high RPM in neutral?

http://technoanswers.blogspot.in/2012/02/high-rpm-in-neutral-inconsistant-high.html

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Vehicle stumbling at idle and shows code 54?

http://schematicsdiagram.blogspot.in/2012/03/vehicle-stumbling-at-idle-and-shows.html

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Rough idle, staling and Erratic shifting?

http://technoanswers.blogspot.in/2012/03/rough-idlestaling-and-erratic-shifting.html

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While stop engine idles like cylinder missing?

http://schematicsdiagram.blogspot.com/2012/01/while-stop-engine-idles-like-cylinder.html

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These details will help.

Thanks.

You have a failed battery I'm sure

ANTI-THEFT SYSTEM Passive anti-theft system
Your ignition key has a unique imbedded transponder which engages engine electronics and allows the vehicle to be started. Without the use of your special ignition key, the vehicle will not start.

During each vehicle start, the coded key is read by the anti-theft system. If the key’s ID code matches the code in the anti-theft system, the vehicle is enabled to start.

Anti-theft system
Briefly illuminates when the ignition is turned to the ON position to verify that the passive anti-theft system is operating properly.

Also, its possisble that tou have actovated the fuel pump switch.

CHeck it.

Maybe but the pump in your tank may be bad and overloadind the fuse. When you turn on the key to on - not all the way to start position- you may be able to hear the pump running. OR NOT

ck your maf sensor and make sure first, youe fuel filter is good.

Ford has 2 types of 4x4 system engagement. One is a knob on the dash that you just turn to 4wheel drive high or low. The other system is the 4x4 transfer case shift on the transmission tunnel (hump) between the driver and passenger seats. To shift into 4 wheel drive high while driving, just let off the gas and shift transfer case into 4H position, and continue driving. To shift into 4 wheel drive Low, stop the vehicle completely, put transmission in neutral, shift transfer case into 4Low position, put trans. in gear, and start driving. I am assuming before doing the above, you have locked in ( turned the front hubs to 4 wheel drive position.) Any further questions, let me know.

You need to specify if it's the high or low 4WD, or both that's the issue. Also, make sure it's not as simple as the indicator light not working but the 4WD is.

I had the same problem on my 2001 Expedition, and it could be a couple of problems. You've eliminated a fuse to the transefr case shift motor, so that's good. If the 4WD system is not used for extended periods it doesn't get oil circulated around the mechanism and it gets stuck. You need to press the 4WD button while the truck is stationary and pull away. You may have to do this a few times until it finally engages. When it kicks in run it in 4WD for a while to give the transfer case a good workout and it should loosen up. Follow the usual precautions about running in 4WD (especially low range) on pavement.

If this doesn't seem to fix the issue, your shift motor that engages the 4WD transfer case may be out. You'll have to get under the vehicle and test for 12V to the shift motor when it's engaged. You may want a dealer to do this for you as getting under a large vehicle when its being put into 4WD is extremely dangerous, even if it's up on stands on 4 corners (which is essential for this as no wheels should touch the ground). I strongly recommend having this done on the correct equipment.

If you have air suspension, as I do, you absolutely must disconnect it from power before propping up your Expedition. If it kicks in, which it can do even when the vehicle is off, it could knock the truck off your stands.

You can disconnect the shift motor electrical connector and test for juice. In all likelyhood, if the first suggestion doesn't free up your 4WD then chances are high that the shift motor is either bad or not getting juice.

You may also want to check the transmission range sensor. If it's faulty then it can prevent the 4WD system from engaging. You can test it as follows: Turn the ignition to "on" but don't start the engine, put the tranny in reverse and see if the back-up lights come on. If they don't, then the sensor is out of alignment or broken. If it's out of alignment, loosening the bolts on the sensor and moving it until the back-up lights come on will fix that. If the back-up lights don't come on even when moving the loosened sensor, then the sensor will need to be replaced. If the back-up lights do work, but either the vehicle won't start in park/neutral, or if it can start in any gear, then it is defective and should be replaced.

Hope this helps.

This sounds like your fuel pump. See if you are getting fuel to the fuel rail. Sometimes giving the vehicle a good shake will help it to temporarily start. Also try the relay.