2013 Ford F150 Cv Axle Diagram

Posted by Jason Locke on 8/5/2016 to Informative Articles

In what should come as no surprise to anyone is that a 2011 F150 with 174,000 miles has its fair share of problems, one of the most egregious for our 2011 F150 XL Project Truck was a broken IWE system that caused pretty horrendous grinding and sounds of suffering when first taking off and when turning.

For the uninitiated, Ford's Integrated Wheel End (IWE) system is what locks and unlocks the front hubs when you change back and forth from 2WD and 4WD. The system works off of vacuum and functions a little counter-intuitively in that it uses vacuum to keep the hubs unlocked for 2WD and shuts off the vacuum to lock the front hubs for 4WD. While actually a pretty clever way of doing things, anything vacuum-operated is prone to problems, and the IWE system isn't an uncommon point of issues on any 4WD F150, regardless of engine option. The IWE system is made up of four basic parts: 1). The IWE Solenoid/Valve Assembly (part# 7L1Z-9H465-B), which controls the flow of vacuum when you change drives. 2). The IWE actuators (I used Dorman's kit for this guide, OEM part# is 7L1Z3C247A, I believe). 3). The IWE Vacuum Line (part# BL3Z-7A785-A). 4). Your front wheel hubs (I used Moog part# 515119), though not technically part of the IWE system, they play a role and can suffer during an IWE failure.

Which brings us to our 174,000 mile XL, which did spend most of its life working outdoors. When the IWE system starts to fail, the first tell-tale sign is a grinding sound in 2WD, usually only under certain conditions when it first starts, but gets progressively worse as you go along. The grinding is generally caused by the actuators not getting enough vacuum to disengage completely with the hub, and while that sounds simple, there could be several causes. With the truck grinding pretty consistently under part throttle and while turning in 2WD (but not 4WD), I knew something was up with the IWEs. Not knowing how long it had been doing that, I assumed that both the actuators and the hubs were toast, which turned out to be a pretty good assumption.

2011-2014 F150 IWE System Failure and Repair

As you can see from the image, the actuator and hub had been grinding for long enough that there was material all over the inside of the knuckle's hub mount from the teeth on the actuator and hub being chewed up. I replaced both the hub and the actuator which helped with the low-speed grinding.

While the straight-line grinding was pretty much taken care of, the truck was still grinding when turning. My next step was replacing the IWE solenoid, though knowing what I know now, I wouldn't have bothered, since it was adequately allowing vacuum through. Still, it was an inexpensive part and easily accessible, so what the hell, it might work.

However, the real problem was this:

2011-2014 F150 IWE System Failure and Repair

That's the driver's side IWE actuator vacuum line with a nice tear in it near the push clip that holds it to the frame near the ABS line. It was almost impossible to see, since it was on the side facing toward the frame, but with the IWE line being that only remaining culprit, I replaced it. In all honestly, this was probably the beginning of this truck's IWE problems, but given that it's a work truck and the IWE system isn't easy to diagnose, it probably went for awhile without anyone really caring.

Anyway, the moral of the story is that if you're getting intermittent grinding from your IWE system, check your lines first so that a $30 part doesn't turn into a couple hundred bucks worth of hubs and IWE actuators.

One other quick note: the Moog 515119 hubs that I used DID NOT have the correct connector for my truck's ABS body harness. I had to swap over my stock ABS wiring in order to get it to fit. I'm not sure if there's a model year or submodel split, but make sure you check before reassembling your hub and and knuckles.

If all else fails and you're desperate to make the grinding stop, check out RCV's IWE Eliminators, which delete your truck's IWE actuators and permanently lock your CVs to the front hubs. While this generally results in a decrease in fuel economy and some extra wear and tear on the front driveline (though not by a significant amount), at least your grinding will be gone.

Posted by: caitlinscavossa.blogspot.com

Source: https://www.stage3motorsports.com/2011-2014-F150IWE-Problems-and-Fixes.html

Komentar

Posting Komentar

Postingan populer dari blog ini

Decorating A Small Living Room Photos - Living pequeño: ideas para decorarlo - El Blog del Decorador / Emphasize the coziness of a small footprint with soft textures and calming colors, both of which can make a tiny area feel intentionally small.

Gambar
Decorating A Small Living Room Photos - Living pequeño: ideas para decorarlo - El Blog del Decorador / Emphasize the coziness of a small footprint with soft textures and calming colors, both of which can make a tiny area feel intentionally small. . Decorating a small living room. Warning these are the best small living room ideas of the. So if you're in need of small living room ideas, let these photos inspire you to be creative with your space. Decorating a small living room is one thing, but decorating a small new york living room is a task and a half. The introduction of their brighter shades should be moderate and combined with a white palette. You'll also want to scale down on furniture to create the illusion of a larger space. Decorating a small living room. This is an example of a small contemporary open plan living room in london with black walls, dark hardwood flooring and brown floors. A long and narrow sofa in pastel shades along with a long rug c...
Baca selengkapnya

Living Room Ideas Decorating Images - 40 Awesome Rustic Living Room Decorating Ideas - Decoholic / With bland walls, you can always decorate your furnishings in pattern styles and tribal designs.

Gambar
Living Room Ideas Decorating Images - 40 Awesome Rustic Living Room Decorating Ideas - Decoholic / With bland walls, you can always decorate your furnishings in pattern styles and tribal designs. . Using clever furniture in the living room and paying attention to. Don't forget to save these ways to decorate your living room. With bland walls, you can always decorate your furnishings in pattern styles and tribal designs. Source hello dear readers and welcome back to my interior decor and styling series! An all white furnishing isn't a bad idea at all. Is your living room decor in desperate need of a refresh? Design or decorate a living room that the whole family can enjoy with inspirational photos from hgtv. An all white furnishing isn't a bad idea at all. From throw pillows and candles to storage solutions and artwork. Your living room is one of the most important rooms in your home. ...
Baca selengkapnya

Recessed Lighting Trims 13 Inches In Centimeters Chart / Recessed Lighting Guide How To Select The Proper Housing Trim Recessed Lighting Layout Kitchen Recessed Lighting Lighting Guide : Elco 4 white sloped ceiling led smooth recessed downlight.

Gambar
Recessed Lighting Trims 13 Inches In Centimeters Chart / Recessed Lighting Guide How To Select The Proper Housing Trim Recessed Lighting Layout Kitchen Recessed Lighting Lighting Guide : Elco 4 white sloped ceiling led smooth recessed downlight. . The parts of a recessed light. Once you know how many lights you need, you can decide on a layout and calculate their placement. We earn from qualifying purchases. Check spelling or type a new query. They can be used as decorative lighting, ambient lighting, task lighting, or directional lighting solutions for your property. Beyond that, the size and recessed lighting trim style of your housing is a matter of preference and the lighting effect you'd like to achieve. 12' x 20' = 240' square feet. Small recessed lights fit well with modern décor styles. Just select the layout, enter the room's dimensions, and hit calculate.you can also use the calculator to determine the placement for recessed task lig...
Baca selengkapnya