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Discussion Starter · #1 ·
In August of 2008, I bought a base 4X4 5.7L CrewMax with towing package and upgraded wheels.

Just like any Tundra on a dealer’s lot in the summer of 2008, this one had been sitting for a while (since February) so it had horrible vibrations from tires spotting in 120 degree Arizona summer and a dead battery.

It sat in service for four days after I bought it to get new tires (OEM Bridgstones). It would still lose its cool around 70 mph. Two more trips to the dealer didn’t solve the problem and I got sick of waiting there so we lived with it.

I tackled it in October of 2009 again with 14,000 miles on it. I got a case opened with Toyota customer service first and actually got the service department to pay attention. Paid for half the cost, replaced the OEM Bridgstones with Michelins and the problem was mostly gone.

The only real truck use the vehicle is intended for is an annual Lake Powell trip. Loaded with camping gear, firewood, etc, I would guess the towed load is around 7000 lbs. My 99 F150 super cab 4X4 with 4.6 L and manual transmission was rated at 2,400 pounds towing, less if there was other load. It brought the boat down from Oregon, made the lake Powell trip 15 or more times and when towing, routinely cruised at the speed limit or a few miles higher when it was safe. The truck was in great shape when I sold it for this one and never had any problem towing or any vibration issues.

We just made our first towing trip to Lake Powell with the Tundra. In tow/haul mode, it got around 13 miles to a gallon, set the cruise and enjoyed the scenery. You couldn’t tell it was towing until the speed would go near or north of 70mph. There would be constant, seat of the pants vibration. Unloaded and not towing, the truck is back to a little wheel oscillation and very little noticeable vibration.

It’ll be interesting dealing with Toyota now. Prior experience tells me even if I get a dealer rep to ride shot gun and endure 75mph city freeway towing and admit that there is vibration, I would get excuses instead of solutions. So I reopened the case with Toyota customer service first. It isn’t practical to haul the boat to the original dealer that is 20 miles away when there is one a mile from my house. The rep said she would talk to the dealership by my house and get back to me. She called tonight. The service manager claims they had no experience with a full size truck and a 7,000 pound load showing up so he has asked to confer with the Toyota field tech. specialist to come up with an inspection protocol and they’ll get back to me.

Stay tuned.
 

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It’ll be interesting dealing with Toyota now. Prior experience tells me even if I get a dealer rep to ride shot gun and endure 75mph city freeway towing and admit that there is vibration, I would get excuses instead of solutions.
They'd probably blame the trailer.:D Hope they get it figured out.
 

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nice boat though. again, im glad my truck has no vibrations or anything.
 

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Discussion Starter · #4 ·
They'd probably blame the trailer.:D Hope they get it figured out.

That is my guess also. However, the trailer got new tires, new wheels, wheel bearings and brakes this summer and it sits dead level.

If they blame the trailer, I'll pull one from used car salesman training manual 101:

"sir, if I tow it with another truck and there is no vibration, would you guarantee to fix or replace my truck?"
 

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In August of 2008, I bought a base 4X4 5.8L CrewMax with towing package and upgraded wheels.
Theres the problem right there. You somehow got a 5.8L when Toyota only makes a 5.7L. Id take it back and ask wtf.
 

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ha. on the note of bringing in a truck with a boat...back when i worked at chevy service dept, we had a 2500 suburban pulling about a 9000 lb boat come in with a busted transmission....a inline 6 cylinder ford f150 pulled it in on a chain..it was hilarious...they parked it right out front of the service drive with trans fluid pouring out all over the place...looked like a bad chevy commercial and a great ford commercial.....
 

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Theres the problem right there. You somehow got a 5.8L when Toyota only makes a 5.7L. Id take it back and ask wtf.
haha u guys are brutal...

wasnt a 5.8 a ford 351 several years ago???

:D
 

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Great, now I look like a jerk. :cool:

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nope. that was already done. hahahahahaha JK


I had a shudder/vibration on hard acceleration and fixed it with traction bars that kept the rear leaf from wrapping. I wonder if your pinion angle is off for some reason, taking your U-joints out of phase
you might be onto something here...if its got a slight vibration unloaded but more pronounced when loaded, i think you are right on the nose. with a 7000 (or 70,000) lb boat on the azz its gonna lower the rear end just from weight...just like lowering a truck, its going to change the pinion angle...might be just enough change to make the vibrations more pronounced.....hmmmm...
 

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Discussion Starter · #12 ·
Theres the problem right there. You somehow got a 5.8L when Toyota only makes a 5.7L. Id take it back and ask wtf.
I didn't call it a riddle for no reason.

Years ago, a contestant is playing twenty questions on the radio. The riddle is:
"it is green, sits on top of a tree and sings".

The guy is stumped and whatever logical questions he asks the answer is no. Once he is done, the announcer says the correct answer is a fish.

The contestant complains what type of fish is green? It was painted.

The contestant complains what is a fish doing in a tree? Announcer says they put it there.

The contestant complains a painted fish on top of a tree wouldn't be able to sing. Announcer says Ahhhhh, we couldn't make it an easy one could we?
 

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back on the pinion angle deal....measure how much sag u have in the truck with the boat hooked up, then without the boat, load the bed with random crap to get back down to the same height and take it for a spin...im bettin u have the vibration the same as w/the trailer and if so its likely going to be a pinion angle or similar driveline vibration that gets more pronounced when the angles change...
 

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Discussion Starter · #14 ·
I am not sure if I quite understand the theory behind the pinion angle. Wouldn't this type of dynamic misalignment cause vibration at most speeds instead of showing up only at 70mph or higher?
 

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I am not sure if I quite understand the theory behind the pinion angle. Wouldn't this type of dynamic misalignment cause vibration at most speeds instead of showing up only at 70mph or higher?
Not necessarily. The guy that shortened the drivesahft in my '57 got the yokes misaligned by just a hair. (he only charged me $7 so I couldn't really complain) I have a cyclic vibration that comes on about 40 mph and leaves at around 60 mph.
A bad or seized u-joint could cause the same issue and feel exactly the same way...a cyclic droning that gets worse at certain speeds.
 

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just like a tire out of balance...its a certain speeds as well...
 

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Discussion Starter · #18 ·
Update:

I got a call from Toyota corporate. If you recall, the service manager at the closest dealership to me wanted to confer with the regional field tech. specialist. Today, I was told that the field tech. specialist himself wants to test drive the set up. The next time he'll be at that particular dealership is September 1st. I had asked for an appointment around 10 or so in the morning when city freeways are at their lightest during business hours.

They gave me an appointment for that time. Toyota has so far been prompt, courteous and very reasonable.

I think the opinions expressed here with regards to problems with the drive line make sense. The truck is just too sensitive and the change from a quite and perfect ride to totally unsettled is abrupt and very noticeable. Either I am imagining things or there is a definite whine from the rear differential as well. BTW, truck has never been off road and when I put the boat in and pull it out of water, the tires and definitely the differential don't touch water.

I’ll update again after the September 1st dealership visit. Thanks for all the input, it is much appreciated.
 

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I had a left rear axle/wheel bearing fail at 20-25K miles. There are several guys here on TS that have reported bad bearings and gear whine in the rear end. (pinion brgs and wheel brgs)
Sounds like they (toyota) are being very accommodating. Hope it turns out well for you.
 

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There was someone else on here having that same problem but with a 2010. He swapped wheels with another truck and everything. I don't think they ever figured out what was doing it last time I checked.
 
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