Question about 2003 Ford F150 Regular Cab

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Manually turn the swith to engage 4x4 on 2003 F150 supercrew, no light indicator but do hear the the clicking but there is no 4x4. Checked the fuses. Good. Checked the solenoid for cracking. No sign of cracking. Any thoughts?

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Posted on Jan 02, 2017

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SOURCE: 2003 F150 4x4 will not engage

also locate the GEM module should be locate at firwall on pass.side . disconect negative battery post , pull gem wire plug, 8mm bolt-- clean and fill with dielectric- grease. at least that won't cost to much, alittle time and fewn bucks for grease.--this happend to me exact problem ,maybe same solution . good luck!

Posted on Aug 28, 2008

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SOURCE: My 2004 F-150 Ford Truck will not engage into 4 wheel drive low.

I am going to ask a dumb you have it in neutral and the brake mashed when you switch to 4WD LOW? I believe that is what my book says to do.

Posted on Oct 27, 2008

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SOURCE: There is no sound from

my keyless entry has been working great we went on vacation. it quit working i cheched the fuses and the battery in the remote everything is fine just does not work anymore

Posted on Nov 09, 2008

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SOURCE: 2004 ford f150 supercrew will not engage in 4

Could be a problem with the vac lines to the IWE ( Integrated Wheel Ends ), or a problem with the IWE solenoid, or a problem with the vent from the IWE.

Start with checking the vac lines, to make sure they are not cracked.
The vac res & IWE solenoid are behind the battery. Here is a diagram of the parts in the IWE vac system

There was a TSB for the 2004-2006 MYs with a bad design IWE solenoid, but this usually was coupled with noise in 2WD.
Start with checking the VAC lines and the vent, next would be to check the IWE solenoid.

Here is the PDF of the TSB on IWE solenoid

Posted on Nov 28, 2009

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SOURCE: 2001 ford f150 supercrew 4x4......4 wheel drive

There is a special sequence for that. Let me see if I can remember... Pull to a level surface, put the parking barake on, put the truck in neutral, shift to four-wheel drive, release the brake, shift to drive.

The computer waits for this sequence. It has been many years since I did this. If it doesnt work, call your dealer shop and they will tell you the correct sequence.

Posted on Dec 21, 2009

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2001 ford f150 4x4 does not engauge

We may need more details. Does your 4wd dash light illuminate? Do you hear clicking from the dash? If it does not, you are dealing with a fuse or transfer case issue. If you see the light and hear clicking, it likely is not your transfer case but either your 4wd solenoids (attached photo) on the passenger side firewall or the actuator on the front differential. Pop the hood and listen for clicking from the solenoids, if the click, direct your attention to the actuator. It is vacuum actuated so it should move about an inch when engaging and disengaging 4wd. It sometimes gets stiff so see if you can move it by hand to free it up.

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Not sure which fuse you checked.
The Engine Compartment Fuse Panel ( Battery Junction Box / BJB ) is where the fuse is for the trailer tow adapter parking lamps.
Fuse # 5 is the fuse for the parking lamps, and the reversing lamps.

Next is the trailer tow adapter park lamp relay. This is what BJB Fuse #5 feeds, and the coil is operated by the truck's parking lamps. This is also in the BJB, Relay 201, it is the 1/2 size relay.

Not sure what you took a resistance reading from on the trailer tow adapter.

If you want, you can pull the trailer tow park lamp relay, and jumper the normally open contacts, which should provide power at the trailer tow adapters, regardless of the truck's lights.

This is the wiring diagram for the trailer tow park lamps

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1 Answer

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The 4x4 indicator on the cluster will not illuminate until the motor has turned in the transfer case, and the front shaft locks in place.

Could be a few other things, but start with the fuses and the vacuum solenoid on the front.

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Transmission shifter is stuck in 'P' on my 2002 F150 Fx4 Supercrew, why?

You need to check the connection on the front of the master cylinder. This is the brake disengage for the cruise control. If it is wet this is the problem of the short. You need to replace the unit. This was a recall by ford. Now check the #15 fuse (5a) this controls the brake interlock switch. When you put the fuse in you will hear a click. This means you can now take the truck out of park. The lights will come on and the windows will work. If the windows don't work check the other fuses. By pulling them and replacing them made the windows work for me.

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1 Answer

My 2004 F-150 Ford Truck will not engage into 4 wheel drive low.

I am going to ask a dumb you have it in neutral and the brake mashed when you switch to 4WD LOW? I believe that is what my book says to do.

Oct 24, 2008 | 2004 Ford F150

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