Question about 2003 Ford F150 Regular Cab

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My transfer case goes into gear but doesn't turn the wheels.

My tranfer case on my 03 F150 FX4 goes into gear but it doesn't turn the wheels. I have manual lever on the floor to engage transfer case. All lights come on dash.

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Mines doing that too I got my black tires stuck so I got under the front my transfer case locks in my front drive shaft spins but front axles won't spin

Posted on Jul 07, 2015

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I had the same problem... even though i have an 04 heritage edition 4x4, this should help you out... on the transfer case, there should be a plug just beside the forward drive shaft... even though it is a manual shift, like mine, that plug lets the computer know that you are in 4wd... you also have a vacuum locking forward differential, the plug i referred to tells the computer to activate the vacuum system which engages the forward diff... i'm going to take my best guess that either the plug assembly on your transfer case might be bad, OR, you might have a bad vacuum module on your forward diff - even possibly a vacuum leak in the air lines coming from that assembly up to the firewall on the passenger side... just take a peak and see what you think, both the plug and vacuum assembly are easy fixes... (by the way, the vacuum module is a cylindrical unit that has an arm coming out of it that enters the diff... the module should be mounted directly onto your forward diff.)

Posted on Jan 14, 2009

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The lights can come on wihtout the transfer case really working..the lights are actvated by a simple switch and only indicate the switch has been depressed.

It's sounds as if you have a problem with the lickage, or maybe damage inside the transfer case itslef

Posted on Dec 31, 2008

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Dec 09, 2015 | Cars & Trucks

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I have a '08 Ford F150 FX4. Recently I had to use my 4 H for a short drive. I had no issues until a couple of days later, when I notice a rattling noise in 2H, which sounded like a rattling noise si


If it isn't a heat shield or something like that,
then your pulling the transfer & taking it apart

Google your transfer mfg case or unit number & see what
problems come up

Call this place
They have a web site

Drivetrain.Com

Mar 11, 2014 | Cars & Trucks

1 Answer

I have a 1979 ford f250 4x4 and the tranfer case will go in but it wont turn the front driveline


I am a bit rusty on the 22 year old part. Someone else may be more informative, but on some of the 4x4 actuators they used different methods of moving the internal parts.

The actuator used to be Vacuum operated and the part would move a certain distance to put the transfer into high or low mode. If the actuator did not fully extend or contract you would be between gears; sort of in Neutral.

You are now faced with the front driveshaft free-wheeling(But which end?). Disconnect one end of the front driveshaft so you can feel whether the transfer case is free-wheeling or if the other end of the shaft is turning anything in the front axle. With the front hubs locked, the front driveshaft should not turn or if jacked up, the tires should spin when the front driveshaft is turned by hand.

When you are assured that the front axle is fine, then the problem can only be the transfer case. I remember people had a lot of trouble with the actuators.

I hope this gives you a way to test which end of the front driveshaft is the problem.

There are some Blogs on the internet like Ford4x4Owners.com and Off-Road Blogs which can be very helpful. I hope my suggestion helps.

Jul 08, 2012 | Ford Cars & Trucks

1 Answer

Fx4 2005 when switched into 4x4hi no 4x4 lite then 4x4 low I have a lite but only rear wheels engage magnet clicks motor runson transfer case tranfer case was disassembled like new workes manually with...


Operationally vacuum holds the IWE ( Integrated Wheel Ends ) out, and once vacuum is removed the spring engages the IWE.

Lift and support the front of the truck so the front wheels are off the ground ( take safety precautions, chock wheels, jack stands, etc )
Key on, engage 4x4 and try to turn the front drive shaft.
- If it turns it is a problem with the transfer case.
- If it doesn't it is a front axle engagement problem.

- If the front drive shaft does not turn :
1.Shut of the truck ( still jacked up, and supported ) remove the vacuum lines from the IWE. The spring should push the gears in, without the vacuum line on.
2.Check the vent line ( tube that is routed into the engine compartment with nothing attached to it ), for blockages.
3.If the vent line is clear, and with the vacuum lines off the IWE should be engaged ( both front wheels locked ).
4.If they lock, the problem is with the IWE solenoid not shutting off vacuum to the IWEs. There is a TSB on the 2004-2006 IWE solenoids, a newer revision has been made, and used from 2007 and newer MYs.

- If the front drive shaft turns:
1.Check the fuses for the 4WD system ( If ESOF system ) . These are #11, #29, #30 and #111. Use a meter to check the fuses while plugged in, there are pins on the back of the fuse for this. Use a known good ground and check each side of the fuse with the other meter probe, with the meter set to V-DC ( check the scale if a setting that it will read at least 13 V DC ).
2.With the key on, if the ESOF system have someone turn the mode selector from 2WD to 4WD while hitting the transfer case with a dead blow hammer ( do not use a metal hammer, it can damage the transfer case ). Some times the shift motor will get stuck ( lack of use ? ) and the dead blown hammer will free it up.
3.There are 2 relays ( in the small engine compartment fuse / relay panel - ESOF only ) for the 4WD system, one is the CW ( **** Wise ) one is the CCW ( Counter Clock Wise ). These are full size relays, that can be bench tested, or a quick remove and replace test with the high beam relay in the cab fuse panel ( Relays R03 ). 1 at a time, remove the CW & CCW relays and install them in the position for the high beam relay, and test the high beams by pulling back on the MFS ( MultiFunction Switch ). If the high beams work with both relays, the CW & CCW relays are not the issue ).
4.Check the connector on the transfer case for the shift motor, to make sure it is not corroded.

May 30, 2011 | 2005 Ford F-150

1 Answer

My Ford F150 4X4 four wheel drive shifter has become detatched from whatever holds the linkage in place. What do I do?


look under the truck theres a bolt missing its about big as your finger if you look a the side of the tranfer case you'll see were it goes back on the driver side

Feb 12, 2010 | 1993 Ford F150 SuperCab

1 Answer

2002 f150 5.4 triton 160000 miles fx4 supercab turn knob to for high no power to front but light comes on?


Sounds like the transfer case is signaling the GEM OK, but best to check it.
Jack up and support the front of the truck with jack stands ( and chock the wheels, normal safety precautions )
Turn the key to the on position ( do not start ).
Turn the switch to 4H, after the clicks are done and the cluster indicates 4x4, check the front drive shaft.

If the front drive shaft will not turn, it could be a problem with the vacuum motor or the vac solenoids, or the mechanics in the front axle.

If the front shaft will still turn, the problem is in the transfer case.

I am leaning towards the vac motor on the front, the vac lines, or the vac solenoids.

After the test above, lower the truck, start the truck ( wheels chocked, person have the parking brake on, and foot on the brake, safety precautions ) , and have someone turn the ESOF switch to 4H. The vac motor is the disc on the front axle. This should move when 4H is selected.
45e590e.jpg

You can check vac on the pink and blue lines.
Pink is 4WD vac on the hose.
Blue is 2WD vac on the hose.
Should be able to draw vac on the line, and have it hold with a mighty vac or other vacuum pump & gauge.

Dec 06, 2009 | 2002 Ford F150 Regular Cab

1 Answer

2003 f150 crew 4wd Lost 4WD tranfer case locks


Lift and support the front of the truck so the front wheels are off the ground.
Key on, engage 4x4 and try to turn the front drive shaft.
If it turns it is a problem with the transfer case.
If it doesn't it is a front axle engagement problem.

Nov 30, 2009 | 2005 Ford F-150

1 Answer

03 fx4 supercab transfer case engages, but no front wheel pull


Sounds like the front wheel hubs are not locking in.

Sep 11, 2009 | 1999 Ford Ranger SuperCab

1 Answer

How to shift into 4wd


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.

May 16, 2009 | 2003 Ford F150 Regular Cab

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