Axle wrap is back/Help Identifying Noise

[2010TE4Runner]

I am hearing the same thing. Have to check into the fix.

 

[SeattleMike]

This is over me...can this be prevented? Is this caused by engaging 4x4 in dry concrete and steering?

No and no. It's so common that I'd almost call it normal.

 

[DocMT]

This is over me...can this be prevented? Is this caused by engaging 4x4 in dry concrete and steering?

No, it's just normal operation of the driveshaft. The slip yokes allow the driveshaft to expand and contract as the vehicle's suspension modulates over different road surfaces. There are grease fittings (zerks) to keep everything lubed up properly. If you keep everything greased, you shouldn't have any issues.

 

[DocMT]

No and no. It's so common that I'd almost call it normal.

There's a good thread in the 4th gen forum about this issue. Come to find out of a lot of guys weren't pumping up their slip yokes with enough grease. If you keep them full of grease (just beyond the point of expansion, where grease begins to get past the seals), then you really shouldn't have anything to worry about. I grease mine every other oil change and fill them completely and I've never had a single issue.

 

[M1911]

This is over me...can this be prevented? Is this caused by engaging 4x4 in dry concrete and steering?

No. The driveshafts on the 4Runner need to be greased regularly. It's how they were designed.

 

[BeerShark]

Same here...only hear it at drive thru's with radio off and window down. I am pretty sure it is when I apply the breaks and the vehicle does its dive. I vaguely remember reading something about this in another thread but cant remember which one.

Since starting this thread I've also come across a few others mentioning this issue.

I haven't noticed any out of the ordinary sounds coming from the brakes. Only noise when its been sitting for a while and a film of rust develops on the rotors, but that disappears after driving it.

As for the transmission jerk, does it seem to happen around the 1-2 shift or if you let off of the accelerator to coast and depress the accelerator again?

Yes, the 1-2 shift and while resuming acceleration as you mentioned. Both of these issues have developed and were not present on my test drive or the first 1000 miles or so

 

[TOY2G]

On the T4R the slip yolk gets dry/sticky and needs to be lubed. What will happen is it will stick in place and when it pulls loose you will hera a pop, the metalic sound is the hollow shaft echoing after it hits bottom.

Save your self some money and lube teh Drive shaft yolk adn then see if that fixes it.

 

[Mason]

Yes, the 1-2 shift and while resuming acceleration as you mentioned. Both of these issues have developed and were not present on my test drive or the first 1000 miles or so

I don't know a specific fix for it, but it is annoying and embarrassing when others are in the truck with you. I really think that a new truck shouldn't even do this, but it might just be a Toyota thing. The reason I say that is because I borrowed a Tacoma for a while and even that had the 1-2 transmission jerk. However, sometimes if I am aggressive with the accelerator it doesn't shift as harsh.

 

[BeerShark]

Interesting coincidence.....

http://www.toyota-4runner.org/5th-gen-t4rs/68916-axle-wrap-back.html

Sounds like you have the same issue I was having until I insisted that they lube the slip yoke. After they did this, the thump went away. Ask them to do this when you go in for an oil change and complain about the thump so they get this taken care of for you. They may tell you that you don't need it done, but insist on it and they will do it.

Very helpful... I will mention this common occurance among owners when i go into the dealer.

Is axle wrap a term for the noise or something else?

Thank you all

 

[westwind77]

Yes, the 1-2 shift and while resuming acceleration as you mentioned. Both of these issues have developed and were not present on my test drive or the first 1000 miles or so

I don't know a specific fix for it, but it is annoying and embarrassing when others are in the truck with you. I really think that a new truck shouldn't even do this, but it might just be a Toyota thing. The reason I say that is because I borrowed a Tacoma for a while and even that had the 1-2 transmission jerk. However, sometimes if I am aggressive with the accelerator it doesn't shift as harsh.

I doubt either of you fall into the VIN # range but Toyota released a TSB for a 1 - 2 problem that some described as a tranny lag and others a hard shift. I had mine reprogrammed and it made a HUGE difference, like driving a different truck!

http://www.toyota-4runner.org/5th-gen-t4rs/68173-good-news-tranny-lag-new-tsb-fixes.html

That is a 10 page with detail on it and what other people have experienced.

Here are the 'nuts and bolts' of it:

T-SB-0166-10 6/29/10

Some vehicles may exhibit a harsh shift on acceleration below 20 mph during the 2-1 downshift on vehicles equipped with an A750 transmission. The Engine Control Module/ECM (SAE term: Powertrain Control Module/PCM) calibration has been revised. Use the following repair procedure to address this condition.

This TSB applies to vehicles produced BEFORE the Production Change Effective VINs shown below:

2WD JTEZU5JR#A5001122
4WD JTEBU5JR#A5002648

Again this was for early one, but if you are having this same problem they made need to extend the range or look for other causes.

 

[Rob_G]

The problem is that if a dealership does this, chances are they will just lightly lube the joint and that isn't going to help. I had my slip yoke lubed twice this fall before it got better.

Rob

 

[Jesse1983]

would you mind a brief, not-too-technical, explanation of what a slip yoke is/does? TIA.

basically a slip yoke is a part of the drive shaft which allows the shaft to compress and extend. this allows for different lengths as the suspension moves through it's range of travel. Many Tacomas (including mine) would experience a shutter when accelerating after lifting it. switching to a 1 piece shaft seemed to help most. here is a little info from Tom Woods, who many purchase custome 1 piece drive shafts from.

 

[adoihcj]

adoihcj - does my symptom sound like what you had "the slip yoke" lubed for?

If so, would you mind a brief, not-too-technical, explanation of what a slip yoke is/does? TIA.

Someone explained what it is in this thread. I took the advice of someone else on the board when I explained the same problem I was having. I just know that it fixed the problem for now, but my understanding is it will come back after a while when it needs lubed again.

What I was experiencing would only occur every once in a while - especially if I had to make a hard stop. After the hard stop, when releasing my foot off the brake, I would feel the thump.

By the way, for whoever said this is a Toyota thing, I think this is an SUV thing. My Explorer did the same thing.

 

[DocMT]

By the way, for whoever said this is a Toyota thing, I think this is an SUV thing. My Explorer did the same thing.

I've owned many different SUVs and none of them ever had this issue. I never owned an Explorer though, so many it's common on those too.

 

[Kmvreter]

I know it's a 4th Gen but here is a link to my experience with lubing the prop shaft and the thump:
http://www.toyota-4runner.org/probl...0-v6-4th-gen-driveshaft-thump-experience.html

Bottom line = Valvoline Syn Power

 

[M1911]

I've owned many different SUVs and none of them ever had this issue. I never owned an Explorer though, so many it's common on those too.

They probably didn't have a slip yoke.

 

[iDRiVaT4R]

basically a slip yoke is a part of the drive shaft which allows the shaft to compress and extend. this allows for different lengths as the suspension moves through it's range of travel. Many Tacomas (including mine) would experience a shutter when accelerating after lifting it. switching to a 1 piece shaft seemed to help most. here is a little info from Tom Woods, who many purchase custome 1 piece drive shafts from.

I lucked out on my tacoma after lifting it, I really only got vibs when I would back up-up a hill, aka my mom's house driveway. It's like a good 30 degree angle.

So are you guys basically pumping up the slip yoke with grease till a little squeezes out or till you cannot pump any more into it? I put some grease in mine 2 weeks ago, about 5 pumps but don't think it did anything. I probably need a whole lot more in there.

 

[Jesse1983]

^ You did luck out! it was like a gift and a curse; nice new lift, looking badass, then your whole cab shook during acceleration.

I never greased this DS, but the Tom Woods on my Tacoma, and my TC's, I pump in new grease until the same, new clean grease is coming out. That way you know you've got all the old, nasty grease out.

 

[M1911]

So are you guys basically pumping up the slip yoke with grease till a little squeezes out or till you cannot pump any more into it? I put some grease in mine 2 weeks ago, about 5 pumps but don't think it did anything. I probably need a whole lot more in there.

You'll need a whole lot more than 5 pumps.

On the slip yoke, I keep pumping until I see the driveshaft start to expand. On the spiders, I keep pumping until some grease starts to squeeze out.

 

[iDRiVaT4R]

^ You did luck out! it was like a gift and a curse; nice new lift, looking badass, then your whole cab shook during acceleration.

just a side story: When I lifted my 2000 Jeep Cherokee 3.5", I drove around for a while before installing a slip yoke eliminator and Tom Woods Drive shaft, the vibs were so terrible, my aftermarket Kenwood CD player stopped working, HAHA.

You'll need a whole lot more than 5 pumps.

On the slip yoke, I keep pumping until I see the driveshaft start to expand. On the spiders, I keep pumping until some grease starts to squeeze out.

I put enough in the spiders, but definitely not enough in the slip yoke apparently. Hope I have enough grease LOL.