4WD sound
 

Hey guys,

Just wondering if your trucks sound much different when in 4WD. Mine makes a whirring type sound when accelerating. My previous truck ('07 Tundra) did not make this kind of sound. Dealer checked it out and thought it was rather noisy so they contacted Ford Canada. They said it could be driveline wind up and said to just see if it gets worse.

Here's a video of the sound I'm hearing. It may be completely normal but as I said, my other truck didn't do this.

BTW, I don't normally drive in 4WD on pavement, this was just for demo purposes as I wanted a surface that wasn't too bumpy for the video. Tire pressures were all 39 psi and I drove in a straight line.

http://i43.photobucket.com/albums/e3...1-Computer.jpg

I cant say about my truck as I havent used 4WD yet but I do know on my jeep that it has a whir or whine from the transfer case at all speeds.

I know my Jeep transfer case is chain driven which contributes to the whine or whir, not sure but I bet the transfer case in the F150 is also chain driven and that is most likely the cause.

honestly I have that sound as well, as did my ranger, I dont know about how loud it is, but I know mine has it at those speeds as well, I will check mine when I get a chance, but to me it sounds normal.

The thing I find strange is that the sound seems follow the gas pedal and acceleration rather than the forward motion of the truck almost like when the torque converter unlocks. If I push the gas pedal, the sound will increase in frequency and loudness even before the truck begins to move faster.

all I can tell you is that all my 4x4 vehicles have done this in one way or the other, My F150 seems to do it more than my ranger but......... its bigger engine, dif, axle and all that so I dont worry about it. Try takeing it to a different dealer to see if they can A: identify the problem B: correct it. Or you can test drive a new F150 and test the 4wd system on a straight away.

Yeah, I'm not worried, just more curious than anything. I hardly ever use 4WD anyways. Just a few times in the winter really. This truck is so quiet that any other sounds seem more noticeable which is a good thing. :thumbsup:

Posted up in the other thread... I have the same noise on my 2011 FX4. Since new. I did mention that the noise seems to be diminishing with more accumulated 4x4 miles, but I'll keep an eye (an ear, really) on it.

i know this is an ancient thread, but with my 2014 it reacts the same way. the noise reacts to engine speed, not vehicle speed. at first i thought it was chain noise, but i'm not so sure.

So 2010 and 2011 and 2013 all make the same sound and all have not suffered from it.

I've used the 4WD in my 2013 and have not experienced that noise. However, I did not drive 40mph in 4WD. I was actually going up steep mountainous trails.

4.5 years and 80,000 Kilometers later, my truck still makes this sound, but I've never had any problems with 4WD because of it.

If you're at all concerned, moreworktodo, I suggest bringing your truck in to your local dealer to see if they can diagnose this. Also, I will escalate this to the regional customer service manager for your area for further assistance. Please send me a private message with your full name, VIN, servicing dealership, current mileage, and your best daytime phone number so I can get started.

Brittany

Mine doesnt seem any louder or anything in 4wd!

Toddman34, exactly my experience. This is the first vehicle I have ever heard the transfer case. A '65 Chevy 4x4, '88 Bronco 2, '94 F150, '94 Silverado, '94 Blazer, '03 Silverado, '04 Sante Fe, '08 Silverado, none have had any audible transfer case related noise. To be fair, it isn't real loud, but it is there.

Sorry for bringing up such an old thread, it was the one that seemed the closest to what I have.

I bought FX4 this summer and was using 4x4 in the winter, noise-free, until I hit about 7000km... I brought it to the dealership and they told me the noise is normal and that there's nothing they can do for me... If it went 3 months without making noise in 4x4, why did it start now? :unsure:

It's only in 4x4, starts around 60km/h and only when I take my foot off the gas. It feels like the engine is braking and sounds like a growl/whistle.

I have the same noise, following the accelerator also.

My 2012 makes a similar sound.