are you hearing the transmission, or is the power steering pump? is this on dry pavement (a no no) or on gravel, snow etc..?

Mine is pretty quiet.

 

Its upfront.I can hear it in front of me and I can feel it vibrating under my feet. It gets the worst around 30mph

 

I can't tell mine is engaged, unless I try to turn sharp. It still doesn't make noise, just harder to turn.

 

I can't tell mine is engaged, unless I try to turn sharp. It still doesn't make noise, just harder to turn.

Mine seems to make a little more noise when I turn too. I hear it on snow or whatever.

Do I need to take this thing into the dealer? is it common?

 

Mine was very quiet when I purchased my truck. Over the last 5,000 miles it has been getting progressively louder. I have mentioned this to my service manager ans he stated that it is normal and his Titan makes the same noise mine does.

I call shenanigans on the whole deal. I can't imagine 4x4 being quiet then getting loud normal!

 

Mine was very quiet when I purchased my truck. Over the last 5,000 miles it has been getting progressively louder. I have mentioned this to my service manager ans he stated that it is normal and his Titan makes the same noise mine does.

I call shenanigans on the whole deal. I can't imagine 4x4 being quiet then getting loud normal!

Mine has been doing it since the first time I turned that knob about 2 months ago.

 

Mine does not make any noises when engauged in 4wd....
Tell your service guy that....I have not had any diff. or tranny problems to date.....I put "THE BEAST" through a rough workout today....Good Luck...

 

I was trying to think of a way to describe what it feels and sounds like. Imagin a differental completely dry..

 

I was trying to think of a way to describe what it feels and sounds like. Imagin a differental completely dry..

Then add about a quart of wet sand to the mix and run it at about 30 mph. I know exactly what you are trying to explain....I think.

 

yes mine does it too... its like a loud hum that can be felt in the floor, i notice it when i accelerate... seems to be normal i think.... is there anyone that can say that the noise in 2wd and 4wd isnt any different while going straight?

 

My old GMC moaned in 4WD as well. On the Titan, I recently replaced my transfer case and front differential fluids with no change in sound.

 

yes mine does it too... its like a loud hum that can be felt in the floor, i notice it when i accelerate... seems to be normal i think.... is there anyone that can say that the noise in 2wd and 4wd isnt any different while going straight?

No difference in sound between 2 and 4 wheel drive, even turning.

 

No difference in sound between 2 and 4 wheel drive, even turning.

is the same true when you step on the gas?

 

Hello,
I feel my 4 Wheel Drive is noisy also. It make a vibrating noise that is irritating , mostly when accelerating. It also has a cyclic nature to it ...I periodic increase and decrease in sound and vibration. The "cycle" is about 10seconds peak to peak, aprroximately. I have the truck in the dealer servicing it right now for the nonabilty of the 4 Hi to drop out when I turn it off. It has done that from day one. The only way to get it to drop out is to stop or go very slow and turn. I never have had this issue with my Ford F-150 electronic-on-the-fly 4 Wheel Drive system. I have let it go thinking it would "break-in" or something, but now I am nearing the end of the drive train warranty.
Am I wrong to think of the On-The Fly 4 Wheel Hi as just that ...ON THE FLY?
SHouldn't I be able to shift from 2 Wheel to 4 Wheel (Hi of course) while traveling at reasonable speeds (60 or less)? Can sme of you Titan owners tell me this is the case?
Thanks
Tim

 

I wouldn't call mine noisy, but I can definitely tell its engaged. I feel mine more through the steering wheel, even while going straight.

 

my 4wd wont disengage until i turn either...... and i can definately feel mine is engaged by more pronounced drivetrain vibes... not like bad type of vibrations... just like the same noises that are probably already there in the rear but now more pronounced when 4wd is engaged... i tend to think it is normal..... guess i could check my front diff level just to be sure....

 

I am really confused now. The dealer said they put a set of OEM wheels and tires on the my truck (from another Titan) and 4 wheel drive disengaged and the noise went away.
I put a new set of 18 inch wheels and tires from the stock 17 inch ones. The problem with the dissengagement was there before I put the new tires on, so I am at a loss. Now I am forced to go find a set of OEM wheels and tires to show them there is no connection. The new wheel/tire combo I put on is about 3/10's of an inch larger than stock. I have the same tire/wheels on the front and back. It almost surely is a transfer case/transfer unit problem, but they won't seem to address that at all and are concentrating on my tire change as the problem. I hate to be paranoid about what there doing, but I
did not want to spend 2700 bucks to get the OEM tires/wheels put on. I would be suspicious that they are going to really fix what is wrong with the transfer system and charge me for the tires to cover it. ANYONE have this dissegagement problem with the stock tire/wheels and get it resolved?????
Tim

 

I had the same problems with my 04 Titan. I had the stock wheels and tires. Like some of the others my 4wd drive didn't start getting loud until 25k or so. I had it to the dealer and they even heard a grinding noise when turning it about a 1/4 of the way, but couldn't find a problem. I sold it last saturday.

I think they are blowing smoke up your butt about putting stick tires on it, I would ask for proof.

I am debating between a F-250 diesel or a 07 titan..just somewhat gunshy.

 

I will definitely buy a Ford next time. The only reason I bought the Nissan was because it had the telescoping trailering mirrors and a Nav system option.
Ford did not in the F-150. I was not concerned about quality at all, since I had a Pathfinder that was awesome. This Titan has has:
(1) Warped rotors(resolved)
(2) Leaking front seal.(resolved)
(3) Bad rear differential AND drive shaft.(resolved)
(4) NON-on-the-fly 4 Wheel Drive. (not resolved).
so far....and less than 50,000.
Tim

 

OK, I think we are addressing two problems here. First is the noisy 4wd, and I must say that on my 2004, I can tell that it is engaged, but I have driven a few others and it appears to be normal between them.

Secondly about the disengagement, in order for it to disengage there has to be a break in the driveline, essentially a difference of speed between the front and rear axles. I occasionally have had a small problem doing this but nothing to cry about. Whenever I want to disengage I speed up quickly and then let off, enough so that the weight of the truck will shift and it will unlock each time. The other way to do it is to turn the wheels, but hard to do while driving 65. I can engage at any speed, as well as disengage, but it doesnt fully unlock until there is a difference in speed between the front and rear axles. I hope this helps to explain things. OH by the way I have the stock 18" oem wheels and I dont see how an OEM wheel or not woudl make a difference, UNLESS your front tires are a different size, style, or treadpattern than the back.

 

OK, I think we are addressing two problems here. First is the noisy 4wd, and I must say that on my 2004, I can tell that it is engaged, but I have driven a few others and it appears to be normal between them.

Secondly about the disengagement, in order for it to disengage there has to be a break in the driveline, essentially a difference of speed between the front and rear axles. I occasionally have had a small problem doing this but nothing to cry about. Whenever I want to disengage I speed up quickly and then let off, enough so that the weight of the truck will shift and it will unlock each time. The other way to do it is to turn the wheels, but hard to do while driving 65. I can engage at any speed, as well as disengage, but it doesnt fully unlock until there is a difference in speed between the front and rear axles. I hope this helps to explain things. OH by the way I have the stock 18" oem wheels and I dont see how an OEM wheel or not woudl make a difference, UNLESS your front tires are a different size, style, or treadpattern than the back.

i agree as this has been my experience....

something just hit me while reading this thread... my rear tires are wore a considerable amount more than the front, this would make the rotational speed a little different, not much but a little. maybe it is enough to put enough tension on the driveline to keep it from disengaging.... but it shouldnt affect how it engages becaus a difference in rotation speed from front to rear should make it lock easier. it make perfect sense now because when my truck was new, it didnt lock as easy and it unlocked easier.... maybe i'm on to something here.....

 

as a matter of fact i just did a quick measure and calculation.... there is 3/16" difference in tread from front to back, which means the tire diameter is 3/8 of an inch bigger in the front, this means the rear tires are making just over 7 extra rotations per mile!! wow... i would have never thought.....

 

I gotta agree with evrything x2thez posted. I have an '04 and it is definately louder when engaged. The dealer has looked at it and hasn't found a problem. I also have to completely let off the gas in order for it to disengage.

So far, I am thinking that it is normal until something breaks and then I will say it was adnormal

I have lots of warranty left on the powertrain, so I am not going to worry yet.

 

My 4 Wheel Hi will not engage on the highway under any circumstances.
I tried the speeding up/slowing down/braking technique...no go. I must slow down and make a radical turn in order for it to dissengage. I own the 4 volume set of Nissan's sevice manuals for the Titan and read the diagnostic procedures in the "Tranfer" section, which includes the transfer case and transfer module. It reads like a Microsoft diagnostics procedure. There are so many computers and sensors its mind bogling. Basically there are about 30 inputs into the tansfer unit (responsible for the transfer from 4 Wheel Hi/Low to 2 WD). There are speed/RPM/Transmission/4WD Switch/Wait Switch (and a couple more I can't remember) inputs going into the unit. Since mine will engage properly under some circumstances I have to assume the transfer device itself is working ok and it must be one of the inputs it is getting that prevents it from dissengaging at highway speeds. The funny thing is the manual has no diagnostics that deal with mechanical issuses such as tire sizing or steering inputs in relation to the dissegagement, nor is there any mention under the "problems" area subjects such as "4 Wheel Drive does not dissengage". It only deals with the electronic inputs. There is under one of the transfer input diagnostics a mention to check tire air pressure.
I think I am going to radically change air pressure on the tires....all low, all high, vary the front to rear, etc...and see if that changes how it dissengages. As I stated before I can see that I may be forced to buy some used OEM rims/tires to get it back to stock so at least I can say the tires are not effecting it. I have heard that Tire/rim total mass can effect 4 wheel drive systems also. I just wish I would have brought the vehicle in right away when I noticed it not engaging on the freeway.
One thing I am pretty sure of...looking at the service procedures. I can't imagine a dealer technician doing a full diagnostics on the transfer unit in this truck. It would take him a day from what I can see. Assuming one went through that procedure and eleiminated ALL the input problems *that is all inputs are positive) then it would have to come down to a mechanical problem in the transfer assembly ...clutching, tolerances, etc...
and as I said there are no procedures for this. I have purchased service manuals for the last 5 vehicles I have purchased and never have I not seen a "driveablity procedure" in connection with a vehicle diagnostics. There is nothing in the manual that says:
"drive vehicle at 50 MPH and engage this and this should happen. If it does not go here, etc.." Amazing....
Any suggestions to all this would be appreciated.
Tim

 

correction on my above reply ...i mean't "will not DISSENGAGE on the highway under any circumstances"..
Tim