HOW TO: Diagnose your 4x4 system. ESOF - Page 37 - Ford F150 Forum - Community of Ford Truck Fans

Topic Sponsor
Engine & Drivetrain "How-To" articles pertaining to the Engine and Drivetrain of an F150 (including Exhaust)

HOW TO: Diagnose your 4x4 system. ESOF

Reply

 
 
 
Old 06-16-2018, 03:12 PM
  #361  
Sociopath Truckdriver
 
johnday's Avatar
 
Join Date: Jun 2014
Location: Barton City Michigan
Posts: 9,092
Thanked 1,459 Times in 1,256 Posts
Default

Sounds like you found the bad actor. Check your hoses for cracks, dryrot, etc.
johnday is offline  
Reply With Quote
The Following User Says Thank You to johnday For This Useful Post:
YOMAN (06-16-2018)
Old 06-16-2018, 04:42 PM
  #362  
Senior Member
 
Joe F's Avatar
 
Join Date: Jun 2017
Posts: 207
Thanked 35 Times in 32 Posts
Default

Originally Posted by YOMAN View Post
I used auto zone rent tool vacuum pump with gauge, plugged it in big hole at actuator. I noticed that front passenger is very slowly leaking....front driver is steady.

Whats possible ???

what else to check ??

thnaks



If you are attaching the vacuum pump directly to the fitting on the IWE Actuator and it won't hold vacuum without leaking, that could be your main culprit. It won't be holding the vacuum steady while driving in 2WD either and could be lowering the overall vacuum of the entire system. You should be able to pump it up and walk away and have lunch with no loss of vacuum when you get back. If it's leaking while driving it could be constantly locking/unlocking or maybe not completely unlocking or who knows what.

Last edited by Joe F; 06-16-2018 at 05:02 PM.
Joe F is offline  
Reply With Quote
The Following User Says Thank You to Joe F For This Useful Post:
YOMAN (06-16-2018)
Old 06-16-2018, 10:52 PM
  #363  
Junior Member
 
Join Date: Aug 2007
Posts: 15
Thanked 0 Times in 0 Posts
Default

Thanks...

Any tip or advice on how to check the tubes for leaking ??

ill try check value first before order actuator....If it didnt help with check value then Iíll order actuator...sooo Is doorman brand is good to go??

found amazon for actuator doorman 80-90 bucks

Thanks
YOMAN is offline  
Reply With Quote
Old 06-17-2018, 06:53 PM
  #364  
Senior Member
 
Joe F's Avatar
 
Join Date: Jun 2017
Posts: 207
Thanked 35 Times in 32 Posts
Default

Again, if your actuator can't hold vacuum with the vacuum pump attached directly to its fitting, it needs to be replaced regardless of whether or not there are any leaks elsewhere or not. That leaking actuator could be the only issue, or just one of the issues, but it IS an issue since it's leaking. Suggest replacing it and see how it goes after that. If you want to get a general idea of whether your lines are cracked/leaking. Start up your truck, set the switch to 2WD and then pull the vacuum line off the actuator and attach it to a vacuum gauge to see if it is strong and steady and is not wavering around, also you can check to see if it is the same at both wheels as it is at the solenoid and/or check valve connections before the lines.

When my one of my original Ford actuators failed, I went ahead and replaced both sides with the Amazon Dorman versions and they have been completely trouble free so far. Dorman makes quality stuff in my opinion. Good luck!
Joe F is offline  
Reply With Quote
The Following User Says Thank You to Joe F For This Useful Post:
YOMAN (06-17-2018)
Old 06-17-2018, 09:05 PM
  #365  
Junior Member
 
Join Date: Aug 2007
Posts: 15
Thanked 0 Times in 0 Posts
Default

Originally Posted by Joe F View Post
Again, if your actuator can't hold vacuum with the vacuum pump attached directly to its fitting, it needs to be replaced regardless of whether or not there are any leaks elsewhere or not. That leaking actuator could be the only issue, or just one of the issues, but it IS an issue since it's leaking. Suggest replacing it and see how it goes after that. If you want to get a general idea of whether your lines are cracked/leaking. Start up your truck, set the switch to 2WD and then pull the vacuum line off the actuator and attach it to a vacuum gauge to see if it is strong and steady and is not wavering around, also you can check to see if it is the same at both wheels as it is at the solenoid and/or check valve connections before the lines.

When my one of my original Ford actuators failed, I went ahead and replaced both sides with the Amazon Dorman versions and they have been completely trouble free so far. Dorman makes quality stuff in my opinion. Good luck!
Apprenticed your helping...Well, just got new check value in and it didnít help so I just ordered amazon Dorman . I pray that will solve my issue, thanks
YOMAN is offline  
Reply With Quote
Old 06-18-2018, 04:12 PM
  #366  
Senior Member
 
Joe F's Avatar
 
Join Date: Jun 2017
Posts: 207
Thanked 35 Times in 32 Posts
Default

Good luck! If you are planning to do it yourself and need a visual aid, the famous FordTechMakuloco (Brian) has a great demo up on his channel:

Joe F is offline  
Reply With Quote
The Following User Says Thank You to Joe F For This Useful Post:
YOMAN (06-18-2018)
Old 06-18-2018, 04:49 PM
  #367  
Junior Member
 
Join Date: Aug 2007
Posts: 15
Thanked 0 Times in 0 Posts
Default

how long does it take ? It look like an hour ?

I’m pretty good with hands and did some work on my truck.

thanks
YOMAN is offline  
Reply With Quote
Old 06-18-2018, 05:11 PM
  #368  
Senior Member
 
Joe F's Avatar
 
Join Date: Jun 2017
Posts: 207
Thanked 35 Times in 32 Posts
Default

Yup, I would allocate an hour for a first timer, especially if you only have manual hand tools instead of an impact wrench.
Joe F is offline  
Reply With Quote
Old 06-24-2018, 02:19 PM
  #369  
Junior Member
 
Join Date: Aug 2007
Posts: 15
Thanked 0 Times in 0 Posts
Default

Well, replaced front passenger. I saw there was a bit water in old actuator.

it’s Strange now....

From stop to 60 mph, if I baby my truck like old man driving then It’s smooth.....if I drive more than normal...till 45-50 mph it’s making some steady vibrate on the floor, gas pedal, I turned 4 wd on, the vibrate disappeared.

also so when I slow down from 70 to 50, it came back and make some vibrate...

I removed the tube from actuator and plugged into the vaccum gauge showed hold 5 on both side psi(?)

both side , I plugged into acturators they both showed hold

WTF?

pinion bearing or something ?? It doesn’t make sense cuz I turned on 4 wheel drive it’s smooth, no vibrate
should I go ahead try replace front driver side actuator ???

Maybe its wheel hub that causes vibrate?? Argh LOL

it drove me nuts.

help

Last edited by YOMAN; 06-24-2018 at 03:58 PM.
YOMAN is offline  
Reply With Quote
Old Yesterday, 12:34 AM
  #370  
Junior Member
 
Join Date: Jul 2018
Posts: 5
Thanks: 0
Thanked 0 Times in 0 Posts
Default

Hey guys. I'm having an issue and seems to be some pretty knowledgeable folks in here so i'm hoping you can help. I jacked the truck up to diagnose the IWE actuators on each side. Results are as follows:

Passenger Side - 2wd (CV Shaft Spins with wheel)
4wd (CV shaft spins with wheel, but I can turn continuously. Wheel does not lock)

Driver Side - 2wd (CV Shaft does not spin)
4wd (CV shaft spins with wheel, but I can turn continuously. Wheel does not lock)

I need to check and see if my solenoid has been replaced, but I did just have all hoses and check valves replaced. It would appear as though the passenger IWE is bad for sure. Driver seems good, but will probably replace anyway. However, the problem I'm stumped on is why when I'm in 4wd can I continuously turn the wheel? Every video I've seen, the wheels lock when trying to turn in 4wd. When I am driving, I can tell a noticeable difference in gear noise when I cycle between 2wd and 4wd. 2wd is loud and I can hear gears spinning. 4AUTO, things get quiet and sound normal. Does this sound like it could be my solenoid and IWE?

Any idea as to what is going on?

Thanks
KerrsLight is offline  
Reply With Quote

Thread Tools
Search this Thread
Quick Reply: HOW TO: Diagnose your 4x4 system. ESOF


Contact Us Advertising Cookie Policy Privacy Statement Terms of Service

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.