08 with death wobble & vib - Page 3

HudsonValleyTitan · 12-04-2007, 03:52 PM

""so in conclusion i believe you are FOS and the tire/wheel is a problem.""

You see Eagle?....I'm not the only one not wolfin' down your serving of BS.

54warrior · 12-04-2007, 04:02 PM

Quote:

Originally Posted by StuntDriver06

not like a tire has never been bad...

Nope, not once, never ever, why would you even suggest that???

54warrior · 12-04-2007, 04:05 PM

Quote:

Originally Posted by HudsonValleyTitan

You see Eagle?....I'm not the only one not wolfin' down your serving of BS.

Me neither!

I hope that you have gathered some type of answer to your question amongst all of this adkl1

**adkl1** · 12-04-2007, 04:26 PM

yes i did 54

eagle sg · 12-04-2007, 05:47 PM

Hey guys, i tried to be nice. And yes, i have been a Nissan Tech for a long time that does not mean you can **** on me. Sounds to me you are some bitter parts noob or a lube technician at best judging by all your other posts.

Don't eat it if you don't like the taste fellows. I call BS on the Tire, Wheel, Axle and Driveshaft "theory".

Cheers,
Rich

(PS, hey ding dong, what's the CSI at Hudson)

450xDaD · 12-04-2007, 06:07 PM

My wife had the SAME problem on her '07 Quest. The thing had the same "death wobble" which we discovered with 250 miles on the odometer. It was the most bizzare thing. At 70 it was fine, hit 73mph it started, 75-78 it was unbearable, 80 mph it went away...smooth as silk. What made it bizarre was that the steering wheel didn't shake, but the seats did...violently.

We took it to the dealer, and they replaced 3 tires. They said they were out of spec or something to that effect. Took it home, and same thing happened. Not any better.

Took it back AGAIN(2nd time). They road force balanced the 4 tires again. Took it home, and was disappointed to find the problem still there. this time it wasn't as bad, but still...it was there. I was starting tthink I was crazy.

Finally, 1500 miles I couldn't take it anymore. I was thinking Florida Lemon Law (3 strikes you're out). I went back and asked to drive another vehicle with the same specs as mine. I also asked the Sales Manager to come along to prove I wasn't crazy. I Drove down a good stretch of highway between 70-80, and low and behold...NO SHAKE.

We then took our van, down the same stretch of highway, same speeds. Just as expected it shook like a bee-otch. He was amazed how bad it was.

We got back, and he told the service manager to swap tires from van to van. The thing has been perfect since.

Moral of the story....as someone mentioned in a previous post, road force balancing means diddly-squat. You could just have bad luck with those crap-year tires like we did. I bet it's in the tires........

HudsonValleyTitan · 12-04-2007, 06:36 PM

Quote:

Originally Posted by 450xDaD

My wife had the SAME problem on her '07 Quest. The thing had the same "death wobble" which we discovered with 250 miles on the odometer. It was the most bizzare thing. At 70 it was fine, hit 73mph it started, 75-78 it was unbearable, 80 mph it went away...smooth as silk. What made it bizarre was that the steering wheel didn't shake, but the seats did...violently.

We took it to the dealer, and they replaced 3 tires. They said they were out of spec or something to that effect. Took it home, and same thing happened. Not any better.

Took it back AGAIN(2nd time). They road force balanced the 4 tires again. Took it home, and was disappointed to find the problem still there. this time it wasn't as bad, but still...it was there. I was starting tthink I was crazy.

Finally, 1500 miles I couldn't take it anymore. I was thinking Florida Lemon Law (3 strikes you're out). I went back and asked to drive another vehicle with the same specs as mine. I also asked the Sales Manager to come along to prove I wasn't crazy. I Drove down a good stretch of highway between 70-80, and low and behold...NO SHAKE.

We then took our van, down the same stretch of highway, same speeds. Just as expected it shook like a bee-otch. He was amazed how bad it was.

We got back, and he told the service manager to swap tires from van to van. The thing has been perfect since.

Moral of the story....as someone mentioned in a previous post, road force balancing means diddly-squat. You could just have bad luck with those crap-year tires like we did. I bet it's in the tires........

Of course it was a wheel tire thing. Pay no attention to this eagle dolt...probably a ticked off F-150 owner. But if he really is a Nissan tech, it would kind of make sense because we all know how much they really know...don't we. Poor guy...lol. He's the reason we go back to the dealer only to have covered warranty work done. I'm surprised he didn't suggest balancing your muffler bearings!

GreenmtnTitan · 12-04-2007, 07:12 PM

Just to refresh from my earlier post: My truck had the same wobble with a COMPLETELY DIFFERENT set of tires AND wheels. Even the tire brand was different (Goodyears instead of BFG's).

On my truck at least the tires/wheels do NOT seem to be the problem, unless those other tires and wheels were bad in the same way as mine...

If the shock theory is true, might the condition change as the shocks wear/break-in?

As far as ruling out the driveshaft as a culprit, a driveshaft vibration that is "harmonic" in nature and was VERY slight at lower speeds COULD increase in magnitude at other harmonic intervals as speed is increased. Theoretically if you could get the truck to 140 mph the vibration might reoccur and be severe enough to cause a failure... or not, that's the nature of harmonic vibrations. If you've ever been near any BIG equipment (specifically 600+ Megawatt steam driven turbine generator sets) on their way to high RPM, you should recognize that there are certain "critical speeds" where the machine is NOT HAPPY and neither is anyone standing nearby. Such rotating masses usually have more than one critical speed zone. That's my though on the driveshaft, plus all those little weights tacked on there just scream "sh-tty workmanship"

Did anyone else look at their driveshafts to see how many little weights are welded on?

CD

**adkl1** · 12-04-2007, 07:28 PM

Well guys its at the dealer so maybe i will here from them tomorrow.. I wrote them a long letter explainig what was going on, gave one copy to the service writer and left one in the truck for the tech.. But the service writer didn't know what death wobble was so that kinda scared meeee.. I will post anything i hear... I really think the shock/spring combo is toooo shoft for this truck.. But my last truck was a 06 3500 dodge turbo D so that thing was stiff..

daptech · 12-04-2007, 07:36 PM

I don't know if an out of balance drive shaft would cause a "wobble".
I had a car with a vibration from the driveshaft at high speeds.
There was a bad vibration, but the car tracked very well.
But, the Titan has a much longer driveshaft(s) than a car.
Sometimes tires cause a wobble due to poor quality
control.........such as the belts not being aligned straight
in the tire casing. Crooked belts & some other kinds of tire
problems often feel like a wobble at slow speeds turn into
a vibration at high speeds.

GreenmtnTitan · 12-04-2007, 08:35 PM

To be clear, I have a vibration that does NOT threaten control of the truck. It causes the seats to "wobble" and my coffee cut to giggle but in no way feels like the track is being effected.

CD

HudsonValleyTitan · 12-04-2007, 09:03 PM

Quote:

Originally Posted by GreenmtnTitan

Just to refresh from my earlier post: My truck had the same wobble with a COMPLETELY DIFFERENT set of tires AND wheels. Even the tire brand was different (Goodyears instead of BFG's).

On my truck at least the tires/wheels do NOT seem to be the problem, unless those other tires and wheels were bad in the same way as mine...

If the shock theory is true, might the condition change as the shocks wear/break-in?

As far as ruling out the driveshaft as a culprit, a driveshaft vibration that is "harmonic" in nature and was VERY slight at lower speeds COULD increase in magnitude at other harmonic intervals as speed is increased. Theoretically if you could get the truck to 140 mph the vibration might reoccur and be severe enough to cause a failure... or not, that's the nature of harmonic vibrations. If you've ever been near any BIG equipment (specifically 600+ Megawatt steam driven turbine generator sets) on their way to high RPM, you should recognize that there are certain "critical speeds" where the machine is NOT HAPPY and neither is anyone standing nearby. Such rotating masses usually have more than one critical speed zone. That's my though on the driveshaft, plus all those little weights tacked on there just scream "sh-tty workmanship"

Did anyone else look at their driveshafts to see how many little weights are welded on?

CD

If tires and wheels didn't do it, it has to be something that's turning. Not the shocks. Driveshaft, maybe a wheel bearing, F'd up brake rotor(s), bad or unbalnced half shaft(s) up front.

**walleeme** · 12-04-2007, 09:04 PM

Ummm,
Are the new wheels made in China?

HudsonValleyTitan · 12-04-2007, 09:08 PM

Quote:

Originally Posted by adkl1

Well guys its at the dealer so maybe i will here from them tomorrow.. I wrote them a long letter explainig what was going on, gave one copy to the service writer and left one in the truck for the tech.. But the service writer didn't know what death wobble was so that kinda scared meeee.. I will post anything i hear... I really think the shock/spring combo is toooo shoft for this truck.. But my last truck was a 06 3500 dodge turbo D so that thing was stiff..

Where did you hear that term to begin with?...lol. I've never heard it myself. Yeah you can't compare a 1 ton suspension to a 1/2 ton.

DjKamper · 12-04-2007, 09:25 PM

I have a new 08 LE. 4x4. I have the same thing. Just put new tires on it - pro-comp AT's and it seems worse. So - it's not limited to the PRO 4x - I will check into the wheel/tire balancing and than the dealer if that doesn't solve it. Ill post what I learn.