This will be wordy. Dealer kept truck for 1 1/2 days. Drove it several times and concluded:
1) Could not duplicate shudder.
2) What I felt like was slack in drivetrain is normal. He drove two other brand new Tundras on the lot, as well as 2 Tacomas, and said they all did it. He felt like it was related to the rear shock stagger when the truck is stopped. Something about the way the rear axle pinion angle changes and produces a slight clunk on take-off.
3) He indicated that the new 6-speed is so sophisticated that it will actually learn and remember individual driver habits and adjust accordingly (run THAT ONE by your dealer). This being said, different drivers may hear or feel different things based on driving habits?
I have to admit that prior to taking the truck back for this evaluation, I drove it on interstate on an outing for about six hours at 75 - 80 mph speeds. Not once did I feel the vibes during or after this trip. Going back to my gut instinct, which was a bad u-joint, I'm beginning to think there was a rough needle in u-joint that finally just worked itself out. Driven truck several times since and no shudder. It did happen primarily at shift points which could have unloaded u-joint for the instant I was feeling the vibes. Hell, I don't know. I'm just going to keep driving and forget it. Tons of warranty left with the additional 7 year/100K I bought. I am registered with Toyota USA and have a case number and documentation from dealer on the visits. On a side note, the truck is getting just shy of 16 mpg with a mix of driving conditions. Just got WeatherTech custom floor mats which fit and look great. Have an appointment at 9 am today for Line-X so I gotta go.
Drive line clunk is something all Toyota trucks experience. It doesn't have to do with the staggered shocks or w/e. My 94 4Runner did it, my 2002 4Runner still does it, and my FJ-Cruiser does it. Even my old 91 LandCruiser did it. This is something normal on Toyota trucks. I've owned quite a few manual Toyota trucks and this clunk doesn't exist. So it must be buildup from the a/t transmission and when you let go, it gives a shock.
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2010 International ProStar 13spd, 06 Corolla CE, 02 4Runner SE 4x4 A/T
1991 Toyota Cressida 5spd M/T Turbo Charged
Quote:
Originally Posted by MT Groove
Nitrous is like a hot chick with an STD. You want to hit it, but you fear the consequences.
The clunk is caused by air being trapped between the driveline splines. When you come to a stop and the driveline compresses, there's no where for it to go and when you let go of the brakes or accelerate it clunks when the air escapes.
nuke1, if you don't hear the noise anymore then hopefully your truck worked itself out. I'm with you on just enjoying your truck! Don't let it ruin the new truck love
my 03 tacoma prerunner did it and it annoyed the s&^$ out of me that was one of the biggest factors of me selling the truck ... so far my tundra hasnt done it ... if it does its going back to the dealer ... but now i just gotta pick another dealer to trust ...
The Toyota / Lexus LS430 2004 had difficulties with their then newly introduced 6spd. automatic - and recalled all 2004 LS430s to refit all new transmissions and convertors - free of charge.
Problem was a 'spacer' with a 'tang' on it for 'Park' - which would slip into a notch when Park was selected.
The 'tang' was shearing off on a few - $0.05 spacer - .
I picked up one of these lo-mileage take outs for $150.00 with convertor - sending to IPT in NJ to be 'massaged' .
It will eventually find it's way behind a salvage 5.7 iForce engine once they begin showing up in wrecks in a year or so.
These 'New' 6spds. are a different design than the '04 units -
I'm guessing they have some ZF affiliation - since most manufacturers now are using a ZF 6hp26 trans. derivative - GM / Ford / Jag / Maserati / Lambo etc.
David T,did you ever hear back as to what the problem with your trans. was? Mine does the same thing, took it in tech. seems to think trans dosent have enough trans fluid in it, says new fluid is thin like water and has to be ck at a certain degree by a scanner, i am afraid to drive much if this is true ,any input.
David T,did you ever hear back as to what the problem with your trans. was? Mine does the same thing, took it in tech. seems to think trans dosent have enough trans fluid in it, says new fluid is thin like water and has to be ck at a certain degree by a scanner, i am afraid to drive much if this is true ,any input.
Its not the around town driving but I dont want to break down on I-10 or in Houston not good.I know it will be fixed but I would like for them to find problem before I take off.
David T,did you ever hear back as to what the problem with your trans. was? Mine does the same thing, took it in tech. seems to think trans dosent have enough trans fluid in it, says new fluid is thin like water and has to be ck at a certain degree by a scanner, i am afraid to drive much if this is true ,any input.
jarhead, I haven't heard back from my dealership. At least have your technician check the fluid if you haven't already. I don't think its a low fluid issue but you never know. Mine was full when my tech checked it prior to talking with Toyota.
Just picked up my 07Double cab limited (4x4) on Friday. Noticed a vibration from tranny on take off and possible slippage at first. Could this be that same issue?
Just picked up my 07Double cab limited (4x4) on Friday. Noticed a vibration from tranny on take off and possible slippage at first. Could this be that same issue?
I started a thread about this and the general consensus was that this slippage feeling from a dead stop is normal for Toyota auto transmissions. I usually only notice it when I gently pull away from a full stop. If I hit the gas, I don't notice it.
I work for the trans company and have been on these trips to take data and find out what the problem is. I'm a technician and an engineer or two is also sent because we have nothing better to do.
Re: 6-spd auto transmission problem.
Re: 6-spd auto transmission problem.
Re: 6-spd auto transmission problem.
Re: 6-spd auto transmission problem.
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