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Old 10-01-2008, 06:04 PM   #1
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2008 Toyota Tundra Crew Max

We just bought this to pull our 3500lb surveyor. It's a 5.7L v8 and I have to say it drags horribly. I know there is stress pulling anything, but taking it on a 5 hour trip was interesting. Even in tow/haul mode it just lags and have taken it to my dealer to have it looked at and they say there is nothing wrong. It should tow that camper no problem.... just doesn't feel right.
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Old 10-01-2008, 06:32 PM   #2
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That should pull as if it wasn,t even there.What do you mean by drags?
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Old 10-01-2008, 08:11 PM   #3
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Like the horsepower isn't there, it is very hard to get it up to speed. Almost like the campers brakes are on or something (even though they aren't).
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Old 10-01-2008, 08:30 PM   #4
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It definately doesn't sound right. I know you said that the trailer brakes are not on, did you disconnect them to try to ensure that they weren't? I don't know what else to suggest so I'm not to much help. We pull a 5800lb camper with the F150 SCrew with the 5.4 v8 and it seems to do alright. Obviously it takes more juice to go but it performs as I expected it to. Have you tried pulling it with another similar vehicle to see how it does to compare?
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Old 10-01-2008, 08:38 PM   #5
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Yes I tried to tow it without the brakes and it was the same. Not sure what it could be, maybe wind resistance... can't imagin it would be that much. I don't know anyone with a truck to try and tow it. I just bought the truck brand new. I have taken it in because when I step on the gas sometimes the truck sounds like it is neutral before it goes. Other times when I step on the gas it takes off like a rocket. All I have been told is it's and electrical type transmission and it takes time for the signal to get to the engine after stepping on the gas?... I am not a mechanic, but that sounds a little strange.
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Old 10-01-2008, 08:52 PM   #6
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Our last vehicle was an explorer and its the last time we will own one of those. It did the same thing, when in motion you hit the gas and it would take several seconds for it to down shift and go. From a stop it would obviously just go it did not need to down shift. But with our truck it shifts up and down as you would normally expect from a vehicle. I think maybe try another dealer to look at your truck. Someone thats maybe more willing to go in and really take a look at the computer and other important electrical componets that now run the vehicles. I just talked to a guy at work here who knows about vehicle and he said it sounds like somethings wrong. Maybe take it to a tranny shop and have them look, its usually free. Anyhow and a long winded way to say I would really pursue it. I would be persistant with the dealer to really investigate. Sorry if this is a little back and forth my mind wanders easily.
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Old 10-01-2008, 09:00 PM   #7
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It is frustrating since I have taken it to two different dealers in the past 2 months and they both say the same thing. I had an nissan xterra towing my 1500 lb pop up and that thing flew up and down the highway. Of course starting from a stopped position was tough, but once that thing got going forget it... it was an easy tow. Even towing that same pop up with the tundra to the dealer to trade it in for our new trailer the same thing was going on. It seemed my v6 xterra towed that a lot better then the v8 tundra. Very weird... I will look around my area to see if there is a place I can take it too.
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Old 10-02-2008, 07:41 AM   #8
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Quote:
Originally Posted by aextremeskier View Post
Even towing that same pop up with the tundra to the dealer to trade it in for our new trailer the same thing was going on.
That Tundra shouldn't have had any problem at all with the PUP. While towing a full size TT is a whole different world than towing a small PUP, the Tundra should even handle the one you have with ease. The bigger RV is always going to make your Tundra run in a lower gear because that gas engine produces the best torque at higher rpm's.

I know a couple of people that have Tundra's and neither have complained about towing with them.

You could take it to a shop and have it put on a dyno to see if it's making the hp but something tells me that's not the problem.

Your SV 192T should weigh about 4500lbs loaded. It's 8' wide and 8'6" tall. That makes wind drag a big deal over a PUP, which has almost no wind drag.

Maybe you could run by the dealer with the RV hooked up and let the mechanic drive it and tell you if they think it's normal.

Sorry I couldn't be more help but good luck with it.
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Old 10-02-2008, 07:51 PM   #9
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The "stepping on the gas and hesitate" comment could be due to traction controll. I can't remember if they put that as an operator controlled option or if it's intergrated. Either way, that's one step.

Also, take a look at your specs on the truck. What gear ratio is it? That will make a huge difference. Try putting the truck in 1st or L gear and gouge on it - you'll need to manualy shift but you should break the tires loose. Try putting it in drive and testing the same way. Do you feel the same torque? (BTW when you step on the gas you're actually feeling Torque and not HP - they're 2 seperate things)

Tire size has ALOT to do with it. I'm suspecting they're factory or stock size since the truck is fairly new. However, if they're over sized - you're losing some performance there as well.

If all else fails, ask the dealer to pull another truck off of the lot (exactly like yours with the same options, gear ratio and motor) and test drive it with a technician in it. If your truck is doing as you say and not performing like it should then the test truck will tell on it.

Cheers.
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Old 10-02-2008, 09:37 PM   #10
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After some digging, this is what I found. I still don't see a differental spec. So I can't comment on your specific truck. However, they're claiming that the 5.7 married to the 6sp. trans. produces near 400 hp and 401 lb-ft tq.

If that's the case and they don't offer the traction controll option, that truck should boil stock tires when you shower down on it. If not, either the traction controll is on (which should still have enough ass to get things moving quickly) or your truck has issues.



Powertrains and Performance

Three engines see duty in the 2008 Toyota Tundra. Standard on the Tundra Regular Cab and standard-bed Double Cab is a 4.0-liter V6 rated for 236 horsepower and 266 pound-feet of torque.

Optional on these models and standard on all other Tundras is a 4.7-liter V8 with 271 hp and 313 lb-ft. Optional on all Tundras is the muscular 5.7-liter V8 that pumps out 381 hp and 401 lb-ft.

A five-speed automatic transmission comes with the base V6 and 4.7-liter V8, while the 5.7 V8 is paired with a six-speed automatic. With the big V8, the Tundra is seriously quick -- a Double Cab Limited 4WD we tested sprinted to 60 mph in just 6.3 seconds.

All versions of the Tundra can be equipped with two-wheel drive or four-wheel drive, and all trucks come with a limited-slip rear differential. Properly equipped, a 4x2 Tundra Regular Cab can tow up to 10,800 pounds.
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