Hi call me crazy but after test driving alot of new Tundra's and finally purchasing my own 06 AC TRD the power lag off the start is really starting to bother me. It almost feels like a torqe converter kicking in at 1500 rpm. ive noticed when i come to a stop the engine idles down to about 500 / 550rpm, now when steping on the gas it feels like there is a slight delay and then the rpms jump up to about 1400 / 1500 and the truck surges forward...
my work van is a 2003 chevy one ton with the 6.0L and there is ample power no matter what the rpm range is. no hesitation off the start, same with my fathers avalance 5.3L and my buddys dodge non hemi.
Maybe its just the nature of the beast, but i talked with a mechanic today about it and he mentioned that it could possibly be the throttle by wire, not a direct cable, meaning the time you step on the gas is delayed slightly by the signal that is sent to the sensors..computers...etc then to the trottle body.
Am i wrong to think that there is a problem with my brand new truck? or does anyone else feel that there is a definit power lag off the start? I would like to hear other owners input before makeing a trip down to the dealership.. thanks for taking the time to read this!
Yes, my 05 has a similar lag right off idle. There is a split second delay when you first accelerate form a stop. Not noticeable if you take of slowly BUT very noticable if trying to take of quickly. I don't really like it either but I have gotten used to it. I think it's just the nature of drive by wire throttle.
Yes i also agree it does vary upon how you take off. taking off slower is not as noticable, but you still feel the RPMs laggin in power untill it reaches that 1500 point. I dunno...just agrivates me! i still think its a great truck, but the littlest things eat away at me
I've never thought mine had any lag. My 05 AC ran 14.9@92mph at the track with a 60ft time of 2.3 seconds. Check out my time slip in my photo gallery. I have no mods.
Mine does not really have any lag but it does like to quickly jump to higher gears when you're light on the gas pedal; like when making a turn, by the time I've rounded the turn the truck is already in 3rd gear so you don't have much power since the RPM's are so low unless you push the throttle enough to cause it to downshift. (which then tends to be more than you wanted)
It would be nice if there were a transmission mode selector switch like my old '02 Tacoma had. If you put it in "power mode" the transmission would rev to higher RPM's before shifting.
Also, from a dead stop you'll start out quicker if you give it half throttle or less. If you stomp the gas starting out you'll definately get less power then if you start half-throttle and wait until 2000+ RPM's to put the pedal to the metal.
I was talking more along the lines of every day driving conditions. stoping and going frequently and the lag i refered to was only off the line from a stop. I agree the truck is fast, it really starts to pick up in the higher RPM range 2500 +
I think this lag was purposely built into our trucks to avoid shock loading the drivetrain. I personally like it because it let's you maximize traction when you take off really quick from a dead stop.
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2007 Tundra 5.7 4x2 RCSB slate metallic
2005 Corolla - all stock, cause it's the wifes
1986 Mustang GT - the stereo is under the hood
1990 Corolla - cause it was really cheap
The other trucks you mention also have throttle by wire, and I've also heard folks complaining about them having a little lag. My previous Silverado had a slight delay if you pegged the pedal. It's easy to notice if you're idling and hit the pedal hard, there's a slight delay before it revs. Perhaps you've got a problem because it really shouldn't be that obvious in normal driving. Those other trucks also have torque management (does the Tundra??) which can also cut the power if you peg the padal hard from a start and I think that's where most of the complaints come from. Hard to spin the tires because the computer won't let the engien rev that hard right off the start. I don't think the Tundra has enough torque to bother, at least down that low.
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'05 Tundra DC 4x4
'05 Honda Odyssey
'03 Ram 3500 4x4 Cummins
'00 VW Jetta TDI
I'd like a few more but the wife says NO!
I think this lag was purposely built into our trucks to avoid shock loading the drivetrain. I personally like it because it let's you maximize traction when you take off really quick from a dead stop.
Exactly. I worked for Toyota for 7+ years and many of my friends are still techs at dealerships. This is built in so we do not blow up the trannys which was a problem on some earlier Tundras. The motor does not get "Full throttle" until the truck gets moving a little so around 1400- 1500 rpms.
__________________ '05 Tundra DC TRD 2 WHL: The TOW truck, Spectra Mica Blue, with Kenwood H/U, Kenwood Amp and crossover. Infinity 6010cs, 10" Rockford SUB, 6 disc CD Changer mounted in Center console, SWI-X to retain steering wheel controls, 7" TV with DVD. Tinted Windows, Three chamber Flowmaster, Painted front chrome strip
1994 Toy: The TOY Standard cab, Long travel front pulling13" w/Double fox w/Res, Deaver rear at 18" w/Single 2.5 18" fox w/Res., full glass, Bumper to Bumper cage, Gusseted frame, PRP seats, Crow harnesses, Custom steering(All Heims & Chromoly), Grant steering wheel, Smoothest ride around. OH by the way only 70,000 miles.
In my Tundra, I have noticed a slight lag from a stop, only if I do not come to a totally completed stop. I have noticed this in several newer cars I have owned, including a 2002 4 cyl Accord and currently in the 2006 Sienna.
In older (less electronically controlled?) vehicles like my Mazda Pickup (fuel injected) , I can be almost stopped and get back on the throttle and it feels great, with no lag and plenty of instant response. I believe the lag may be a function of the electronic controls, either due to the electronic throttle or perhaps the engine/tranny controls.
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2005 Tundra 4x4 double cab. Line-X, A.R.E. cover.
2006 Sienna LE. Goat hauler
2007 Nissan Versa S
Its funny, if I hit the throttle pretty lightly the truck will pull hard with no lag at all and snap my neck back. It's only when you try and STOMP it that you get a lag.
It seems pretty easy the spin the wheels when I'm at a complete stop with the wheel slightly turned. About 1/3 throttle is all it takes. I've got a 2005 X-SP with the 295-45 tires that have tremendous grip.
Its funny, if I hit the throttle pretty lightly the truck will pull hard with no lag at all and snap my neck back. It's only when you try and STOMP it that you get a lag.
Maybe this is because you are breaking loose when full throttle is applied, but maintaining full traction when part throttle is applied. A spinning tire cannot move the truck with as much force as a sticking tire.
Thanks to all of you that have replied to my thread. In conclusion i do not feel that i have a problem with my 06 tundra. Apparently thats just the nature of the beast! dsrtrcr01 your technical insight has been very helpfull. It makes sense that the throttle by wire would be delayed slightly for sake of computers and engine/drivetrain managment. Like i said before, its not like im complaining that this is a bad truck or anything, its just somthing that bugs me becuase im not used to it. I wish it was different. if there was a 5 speed manual option i would have got that. At least i would be able to controll the gears the way i want. i agree with daze99 in that respect. I can live with it. Now just make a SUPERCHARGER for my 06 for crying out loud!!!!
05-06 tundra owners please read! Power lag?
1994 Toy: 
Linear Mode
