Odd noise?? - FordTough.ca - Home of Canadian Ford Truck Enthusiasts
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post #1 of 13 (permalink) Old 12-22-2015, 12:46 PM Thread Starter
 
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Odd noise??

So I just picked this truck up a week ago, it's a 2012 with only 26,000km on it. It just had it's dealership in clearance inspection done Dec 1st. The other night it was a little colder out -1 and I hopped in and took off down the street and as I hit about 50km/hr I noticed a whiney noise coming from the front driver wheel area from what I could tell. I went to the store which was only a minute a way and went home. The next day it was warmer and I didn't hear it at all. Today again it was around -3 and I heard it for about 5 minutes and then it made another sound which almost sounded like a gasp and then it was gone. As I'm new to owning a truck is this a normal thing? I've read on other forums similar things involving belts,tensioners and intake. Any thoughts on what this might be? I'm a little concerned because I just got it and they said everything was good to go. Also the pitch increases as I accelerate faster.
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post #2 of 13 (permalink) Old 12-22-2015, 02:39 PM
 
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Is it a 4x4? A whining type noise from the front wheel could be a half engaged/disengaged hub.

When you start the truck in 2wd it applies vacuum to the hub, if there isn't enough vacuum it won't disengage and you'll be half in 4x4. Being "cold" can slow down the moving parts so it may finally get enough vacuum and it pops like you described. If there is condensation in the hub it could freeze up and cause issues, which lots of older trucks had happen.

More common of an issue with 04-08 trucks but not unheard of on newer trucks. If it's half engaged it will tear the hub and and eventually stop functioning.

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post #3 of 13 (permalink) Old 12-22-2015, 03:12 PM Thread Starter
 
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Hmmm interesting. I would hope it wouldn't be such a thing as the truck has such low km's and was well maintained. I've booked in with the service dept for tmr to have them take a look. Will likely be hard for them to figure out as I'm sure when I arrive there will be no sound lol. I told them to specifically check for condensation in the hub and to also quickly wiggle the tire to see if maybe the wheel bearing is on it's way out. What you described though sounds like what I'm hearing. Better be a warranty item if it's the case.
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post #4 of 13 (permalink) Old 12-23-2015, 08:19 AM Thread Starter
 
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Ford says they couldn't find anything wrong. Didn't help that there wasn't any noise when they were checking.
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post #5 of 13 (permalink) Old 12-23-2015, 09:55 AM
 
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Could have been a one off event, if it happens again engage the 4wd and see if the noise goes away. If it won't do it when they look at it there's not much they can do.

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post #6 of 13 (permalink) Old 12-27-2015, 12:09 PM Thread Starter
 
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So this morning it was about -3 and snowing....I started the truck for about 6,7 minutes, hopped in and took off in 2wd....Started hearing the noise again, flicked it in 4H and it went away.

2012 FX4 3.5L Ecoboost Silver
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post #7 of 13 (permalink) Old 12-27-2015, 10:25 PM
 
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If it continues, try and arrange a morning appt, and leaving the truck there overnight, that way it's good and cold for the mechanic.
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post #8 of 13 (permalink) Old 12-28-2015, 04:24 PM Thread Starter
 
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I described it better for him today after it happened again. I drove with it in 4x4 for about an hour as there was a ton of snow on the ground....Once it cleared up I was doing about 80kmph and flicked in into 2x4 and it made the noise again....I clicked it back to 4x4 and it went away....So after about 15 min of driving in 4x2 the noise finally stopped. I explained all this to the mechanic and he said he's 99 percent sure it's my IWE actuator and said it's pretty common. They are gonna check it out tmr and it's covered under warranty.

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post #9 of 13 (permalink) Old 12-28-2015, 07:48 PM
 
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Definitely the IWE. Hopefully that takes care of it for you.

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post #10 of 13 (permalink) Old 01-06-2016, 01:52 AM Thread Starter
 
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Well it was quite chilly out today and I hopped in the truck and set off. Low and behold, the noise was back when driving in 2wd and gone when I switched into 4x4. This leads me to believe it's definitely due to the cold weather. After doing some further reading I feel like there is water in the IWE system somewhere that is freezing, whether it be the vacuum lines or the hub or the actuator I'm not sure. Guess I'll be taking it back to the dealership

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