4 wheel drive will not disengage all the way - F150online Forums

Go Back   F150online Forums > Powertrain & Mechanical > Wheels, Tires & Brakes
Log In 

Wheels, Tires & Brakes

4 wheel drive will not disengage all the way

Thread Tools Search this Thread
Old 04-10-2011, 05:51 PM
Junior Member
Join Date: Apr 2011
Posts: 1
4 wheel drive will not disengage all the way

New to this site. I have a 2004 f-150 four wheel drive. Started to notice a roaring noise in front end. After jacking up the left front end and spinning the tire I hear a clicking noise. Replaced hub assembly same problem. However if I put it in four wheel drive and turn off, the clicking go"s away. When I shut the truck off a few seconds later after spinning the tire the clicking comes back. Even if you do this process while driving you still hear the roaring. Any help would be great.
Reply With Quote
Old 04-10-2011, 08:06 PM
Join Date: Aug 2009
Location: Mississippi
Vehicle: 2006 Ford F150
Posts: 28
Check the vacuum hoses to your 4wd actuators (auto hubs). One might be crimped or has a hole in it. The actuators work off of vacuum when you start the engine. If no vacuum is present then the hub will try to engage and you will get a nasty grinding sound. It's a single small hose. There is the brake hose, which is metal, the ABS hose which looks like 2 hoses fused together and the vacuum hose. Same thing happened to me. Good luck.
Reply With Quote


Similar Threads
Thread Thread Starter Forum Replies Last Post
another manual shift 4x4 problem cschmelzer 1997 - 2003 F-150 14 07-28-2015 09:12 PM
Crank no start CraigEBear 1997 - 2003 F-150 7 07-25-2015 10:37 PM
3.5 6 cylinder base motor hammerman 2015 F-150 12 07-23-2015 10:56 PM
F150 engine swap and 2wd conversion questions tsteve25 1997 - 2003 F-150 4 07-15-2015 08:52 AM
Transfer case HELP 2000F150SAS Other Powertrain 9 07-12-2015 08:46 AM

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off

All times are GMT -4. The time now is 10:48 AM.

This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. Fordé is a registered trademark of the Ford Motor Company