2004 Ford F150 Logo
Posted on Nov 28, 2010
Answered by a Fixya Expert

Trustworthy Expert Solutions

At Fixya.com, our trusted experts are meticulously vetted and possess extensive experience in their respective fields. Backed by a community of knowledgeable professionals, our platform ensures that the solutions provided are thoroughly researched and validated.

View Our Top Experts

2004 ford f150 4 wheel high will not engage 4 low will has manual shift

1 Answer

Anonymous

Level 3:

An expert who has achieved level 3 by getting 1000 points

All-Star:

An expert that got 10 achievements.

MVP:

An expert that got 5 achievements.

President:

An expert whose answer got voted for 500 times.

  • Master 984 Answers
  • Posted on Dec 06, 2010
Anonymous
Master
Level 3:

An expert who has achieved level 3 by getting 1000 points

All-Star:

An expert that got 10 achievements.

MVP:

An expert that got 5 achievements.

President:

An expert whose answer got voted for 500 times.

Joined: Feb 18, 2009
Answers
984
Questions
0
Helped
961815
Points
2201

Operationally vacuum holds the IWE ( Integrated Wheel Ends ) out, and once vac 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 :
Shut of the truck ( still jacked up, and supported ) remove the vac lines from the IWE. The spring should push the gears in, without the vac line on.
Check the vent line ( tube that is routed into the engine compartment with nothing attached to it ), for blockages.
If the vent line is clear, and with the vac lines off the IWE should be engaged ( both front wheels locked ).
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.

Here is a block diagram of the IWE system
2004 ford f150 4 wheel high will not engage 4 low - sscullys_34.jpg

Add Your Answer

×

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

0helpful
1answer

My 2004 GMC Envoy SLT will go into four low but not for higher automatic four wheel drive and we'll also go into two wheel drive what's the problem

There are a few potential issues that could be causing your 2004 GMC Envoy SLT to go into 4-low but not 4-high or 2-wheel drive. Some possible causes include:
  1. Transfer case issues: The transfer case is responsible for controlling the engagement of the different drive modes. If the transfer case is damaged or malfunctioning, it may not be able to engage 4-high or 2-wheel drive.
  2. Shift motor issues: The shift motor is responsible for controlling the engagement of the transfer case. If the shift motor is damaged or malfunctioning, it may not be able to engage 4-high or 2-wheel drive.
  3. Vacuum issues: The vacuum system is responsible for controlling the engagement of the transfer case. If there is a problem with the vacuum system, it may not be able to engage 4-high or 2-wheel drive.
  4. Wiring issues: The wiring that controls the transfer case and shift motor can become damaged or corroded over time. This can cause the transfer case to not engage 4-high or 2-wheel drive.
  5. Control module issues: The control module that controls the transfer case and shift motor can fail. This can cause the transfer case to not engage 4-high or 2-wheel drive.
It's best to diagnose the issue by a professional mechanic, who can perform a proper diagnosis and repair the issue. They will be able to determine the specific cause of the problem and recommend the appropriate repairs.
0helpful
1answer

My 2005 avalanche will not engage into four wheel low

Try shifting the shift selector into Neutral first then try engaging 4wd low. If that doesn't work try shifting into 1st gear and then try engaging 4wd low. The information is inside your owners manual but if this doesn't work please let me know. Also is the light on for which mode your truck is in (2wd or 4wd high)? If not, you may want to check for a blown fuse.
0helpful
1answer
0helpful
2answers

Got a 2004 Ford F-150 transfer case i gauges front drive shaft turns but front axle does not lock into 4 wheel drive what could be causing issue its a shift on the floor lights for low come on but not high...

Check your hubs lift front end if wheel does not turn when locked in 4x4 then hubs are not engaging turn wheel by hand or a pipe wrench on drive shaft do not try power unless all wheels are lifted
0helpful
1answer

Looking for instructions for engaging four wheel drive high and low for 2004 f-150 ford

In the owners manual.

If you did not get an owners manual with your truck ( purchased used ), you can download one from Ford :
https://www.fleet.ford.com/maintenance/owners_manuals/default.asp

3helpful
1answer

2004 Ford F-150 extended cab FX4. 4WD problem

Your front hubs are automatic locking hubs, and the gears are hard nylon. These hubs break very easily, therefore causing you to lose your front wheel drive in 4 high, or 4 low. If you replace the hubs with "WARN (name brand) " manual locking hubs, you will never have the issue again. Of course, you will have to get out of the truck and manually lock the hubs, but they are metal gears, and much more durable. I've personally seen the issue several times, and changing the hubs has resolved the issue every time.
1helpful
2answers

2004 Ford F-150 extended cab FX4. 4WD problem

The malfunctioning part in my case is what ford calls the "integrated wheel end" which locs the weel hub on the four wheel drive in or out as need. Part is available from Ford and cost about $110.00. I will do this repair myself.
7helpful
3answers

Ford F150 front tires won't engage in 4 wheel drive

look on fire wall pass. side you will see 2 parts with vacume lines attached 99 percent of the time that is what went i had the same problem
Not finding what you are looking for?

819 views

Ask a Question

Usually answered in minutes!

Top Ford Experts

ZJ Limited
ZJ Limited

Level 3 Expert

17989 Answers

Ronny Bennett Sr.
Ronny Bennett Sr.

Level 3 Expert

6988 Answers

Thomas Perkins
Thomas Perkins

Level 3 Expert

15088 Answers

Are you a Ford Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...