Question about 1998 Ford Expedition

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'98 Ford Expedition - 4WD/AWD won't engage. The switch to engage the 4WD/AWD does not light up and the 4WD/AWD will not engage. No engaging noises or anything. It's as if the switch has disconnected itself from the rest of the system. I visually checked the following fuses according to the owners' manual and they all look fine: UNDER DASH 5 - 5 amp 6 - 5 amp 7 - 5 amp 17 - 10 amp 23 - 10 amp 24 - 10 amp (I thought this one or #23 would be the problem) 29 - 5 amp UNDER HOOD 17 - 30 amp Is there possibly a simple solution for this problem? A fuse I'm missing? The switch itself? It seems like it's electronic in nature rather than mechanical. Possibly related - maybe not: The heater has stopped blowing hot air through the front vents. The problems seem to have started at roughly the same time, so I thought they might have something to do with one another. Thanks in advance for any advice you can offer! H. Eric Mayse mayse@optonline.net

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I had a similar problem, but not exactly the same. In my expedition 98 the A4WD worked, but the 4x4 hi or low did not. Ford dealership diagnosed it to be the transfer case shift motor. I bought one from ebay for $85 and replaced it myself and it works fine now. They wanted $450 to replace it.

Some say you can tap the transfer case motor with hammer, but gently and it may come to life. I didn't try that.

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On these issue, there are few solved help links for troubleshooting the issue easily.-------

Click the link below: ---

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I have a 1998 explorer and the 4wheel drive will switch on like it should and the lights do not blink or anything but I can tell the rear end doea lock in low but never any power to front axle in any...


On these issue,there are few solved help links for troubleshooting the issue easily.-------

Click the link below:---
No 4x4 light on dash?

http://repairhelpcenter.blogspot.com/2011/12/no-4x4-light-on-dash.html

-----------
4X4 Truck makes roaring noise in the front end?

http://schematicsdiagram.blogspot.com/2012/01/4x4-truck-makes-roaring-noise-in-front.html

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Car will not go into 4WD high or 4WD low?


http://schematicsdiagram.blogspot.com/2011/12/car-will-not-go-into-4wd-high-or-4wd.html

--------------
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http://technoanswers.blogspot.com/2012/01/4-wheel-drive-system-will-not-disengage.html

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http://schematicsdiagram.blogspot.in/2012/02/4wd-light-is-flashing-and-beeping-no.html

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http://technoanswers.blogspot.in/2012/06/2002-jeep-wrangler-4wd-idiot-light-is.html

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http://repairhelpcenter.blogspot.com/2012/10/4wd-light-flashing-and-4wd-will-engage.html

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http://technoanswers.blogspot.in/2012/05/2008-toyota-tundra-4x4-wheel-drive.html

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Nov 23, 2012 | Cars & Trucks

1 Answer

I own a 1999 Expedition that I used the 4wd High on 2 dayss ago and never used the 4wd Low at all. As I got home a put it back into AWD and parked it. Two mornings later I climbed into it to take my...


This is very strange because of How the low range is engaged. I drive a 1999 F150 4x4 which has the same dash and controls for the 4x4 as your Expedition. I do know that the fan control switch is unfortunately the same shape and very close to the 4x4 switch. It is easy to grab the wrong knob and turn the wrong thing than was intended.

My initial impression is if it is possible, your girl could have reached over to move the fan switch and actual grabbed the 4x4 switch instead. Or you were warming up the Expedition and meant to turn up the fan and instead turned the 4x4 switch to Low. Or a backpack she was moving with schoolbooks could have hit the switch. What puzzles me is that to go into Low range, you need a foot on the Brake and simultaneously need the gearshift in Neutral and the 4x4 selector in Low. That is 3 things to make the low range happen.

Even if your foot was on the Brake and the sensors caught the gearshift going through Neutral on its travel to Park, the 4x4 Selector would have to be in Low. There is one problem you can have with the 4x4 Selector.***The Selector has 3 Resistors and a LED bulb.***

You stated the Selector switch was good. This would mean there were 3 different Voltages under the vehicle. Sometimes when the LED bulb burns out, it shifts the Voltage out of range for the Servo, and although the Selector says one thing, the Voltage at the Servo has the wrong value for that function. Since the dash light and the Servo agree on Low, it would seem the Selector is out of sync with the other 2 parts.

I hope my solution is very helpful in solving your problem.

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1 Answer

'98 Ford Expedition will not engage when I put it in Drive


yes-could be number of things-1st chec fliuid level-try to get car scanned cause its electrontrans also-car is 12 yrs may need rebild there--secure a manual or ask a pro to drive it

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3 Answers

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i have the same problem can't figured it out although when i turn the knob to AWD the light on dash just flashes. the 4x4 H and 4x4 L light on dash stays on.if u have found out anything please let me know or e mail me at bigd6923@yahoo.com Thanks Don

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1 Answer

4wd high and 4wd low lights flashing at same time on 1997 ford explorer and often engages 4wd when not needed.


possible solution is to take out your dash control panel which has 2 screws . pull it out the radio and all will come out and check the wirer behind the switch. see if it is louse or disconnected also you could need a new switch

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98 expedition xlt wont engage in 4h or 4l. the awfs light is on when switch in that position, none of the others do (eg. 4H or 4L) the vehicle has not been in 4wd in a few months. last time 2low engaged...


one the transfer case there is a motor on the back side of the transfer case. most of the time that goes bad. if you don't have a trouble shooting guide with a wiring diagram, best to have a mech have a look at it. most of the time they rust and stick if not used a few times a year. best of luck.

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2 Answers

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Put it on jack stands. Start it up, put it in 4x4. Put it in drive. Both front and rear drive shafts should be spinning. Do they?

Mar 12, 2009 | 2001 Ford Expedition

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