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Feedback on 4.6L Engine

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#21 · (Edited)
I selling my 2017 4.6L due to the poor transmission shift logic software. I didn't catch it on the test drive around the block. Didn't even think about looking for this issue on the forums. A gust of wind would make it downshift. Don't get me started on going up small grades. Down shift two gears...up one...downshift a gear...up one...up, down, up, down, over and over. It was maddening. There are no software updates available according to my dealership. Good, basic truck otherwise. That's why there's a brand new 2017 5.7L in my garage. I'm taking a big hit for my mistake but for the sake of my sanity, it's worth it. (Full disclosure - I have a obsessive compulsive disorder).

Anyone looking at the 4.6L, I strongly advise you to drive them both and try and find rolling hills to drive on. It's probably a combination of things. The 4.6L has what...80 ft/lb less torque? Also my 4.6L had a relatively tall 3.90 final gear compared to the 5.7L's 4.20? They're just different. The driving sensation between the two is very, very different.

My 2 cents.

Dan

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Discussion starter · #22 ·
u2asian said:
I selling my 2017 4.6L due to the poor transmission shift logic software. I didn't catch it on the test drive around the block. Didn't even think about looking for this issue on the forums. A gust of wind would make it downshift. Don't get me started on going up small grades. Down shift two gears...up one...downshift a gear...up one...up, down, up, down, over and over. It was maddening. There are no software updates available according to my dealership. Good, basic truck otherwise. That's why there's a brand new 2017 5.7L in my garage. I'm taking a big hit for my mistake but for the sake of my sanity, it's worth it. Full disclosure - I have a obsessive compulsive disorder).

Anyone looking at the 4.6L, I strongly advise you to drive them both and try and find rolling hills to drive on. It's probably a combination of things. The 4.6L has what...80 ft/lb less torque? Also my 4.6L had a relatively tall 3.90 final gear compared to the 5.7L's 4.20? They're just different. The driving sensation between the two is very, very different.

My 2 cents.

Dan
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Yeah I'm testing them both. Unfortunately I have zero hills in FL. If I want the 5.7 I will have to at least buy one that has 40k to 50k on it to stay in budget vs a 2016 4.6L. I do know 40k to 50k on these truck is nothing. I have read the 4.6L is a quieter engine. i do a lot of highway miles so I have to hear how load the 5.7L is. I don't think is going to be an issue but want to make sure.
 
#25 ·
I have a 2010 tundra with the 4.6L engine. I have never had problems with the transmission constantly shifting but then my truck is a 4x4 with the tow package. For what you described you use your truck for, the 4.6l should be fine. As for off-roading, the truck handles fine in 2wd but having the ability to switch to 4wd when towing in mud and snow is nice. In 2wd with good tires I have towed a 20ft enclosed trailer with several snowmobiles down a mud road for about 7 km with the trailer at times in mud up to the bottom of the trailer. The truck performed well but after that towing incident, I have since taken that same road in 4wd every other time. It just always feels safer and you feel more in control when the mud pulls on the truck and trailer.
 
Discussion starter · #27 ·
Another question about the tundras including both engines. Is the transmission sealed? meaning they are not serviceable? I don't see a transmission fluid dipstick on my friends 2007 and there is no information in the manual.
 
#31 ·
5.7 twice on sunday. Who we kidding here? Our trucks and MPG should never be in the same sentence...well you know what i mean. I commute 300 miles round trip every week for work and the 5.7 makes that drive a lot more fun!

Sent from my LG-LS997 using Tapatalk
 
#32 · (Edited)
I owned a '10 4.6L for 7 years. I just recently brought a 5.7.
I can't complain about the 4.6 at all. It had plenty of power for anything I ever did with it. I hauled huge loads (8000lbs+), dragged massive logs from our trail system, overload the bed with 2700lbs of stone (not intended. That's what the loader dropped in) and never noticed a hint of struggling.

The 5.7L feels a lot stronger at mid RPM, but the 4.6L has plenty of power for anything you need to do. It's definitely not a substandard engine for the truck.

One more difference that I notice is that I drove the 4.6 'more normal', whereas with my 5.7, I am stomping on it a lot more. Not sure why, but I drive them completely differently. It's possible I just like hearing the pro's exhaust.


Rick
 
#33 ·
jayta98 said:
I guess things have changed quite a bit. What else is non serviceable in newer trucks? Now does this mean the dealer will service the transmission fluid or not at all until the transmission dies?
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Yes they will service it. The service option is a "flush" on the fluid, which should be all that's needed. Other than that, just keep on rolling.
 
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Discussion starter · #34 ·
I keep looking at some more trucks to go look and found a few on 5.7 that are flex fuel. I have no intention of using flex fuel and i dont have it anywhere in my area. Is it a good buy? I read some issues with the alcohol sensor causing power loss.
 
#35 ·
jayta98 said:
I keep looking at some more trucks to go look and found a few on 5.7 that are flex fuel. I have no intention of using flex fuel and i dont have it anywhere in my area. Is it a good buy? I read some issues with the alcohol sensor causing power loss.
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What do you mean "Is it a good buy"? If the price is right, it's a good buy. I wouldn't worry about the alcohol sensor issue if you are using E10 all the time, but I'm not familiar with that issue, or if it is an issue at all. Let the Flex fuel truck owners ring in on that.
 
Discussion starter · #36 · (Edited)
Rick25 said:
What do you mean "Is it a good buy"? If the price is right, it's a good buy. I wouldn't worry about the alcohol sensor issue if you are using E10 all the time, but I'm not familiar with that issue, or if it is an issue at all. Let the Flex fuel truck owners ring in on that.
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what i meant by a good buy is if the flexfuel engine is any different than the regular gas engine. I'm not familiar with them but when i googled it mentioned some people having issues with the alcohol sensor. That's why i ask.

I dont see many vehicles with flexfuel in FL. The price seems good, 2012 crewmax 5.7 4x4 with 44k miles SR5 TRD for $30k
 
#37 ·
jayta98 said:
what i meant by a good buy is if the flexfuel engine is any different than the regular gas engine. I'm not familiar with them but when i googled it mentioned some people having issues with the alcohol sensor. That's why i ask.

I dont see many vehicles with flexfuel in FL. The price seems good, 2012 crewmax 5.7 4x4 with 44k miles SR5 TRD for $30k
Click to expand...
Ah gotcha.
If it's a standard sr5, $30k sounds a bit high. I'd try to get it for $24k at the most in perfect shape. I'd keep looking, you'll find a good deal. Just don't rush it. Good luck with your search.
 
Discussion starter · #38 ·
Yeah im waiting until the hurricane passes and see if there is home damage. I dont want to get a loan for a new truck and then need a loan to fix the house until the insurance company pays for the repairs
 
#39 ·
I own both sets of engines in my tundra's. My daily driver is a 2015 with the 5.7 and my other is a 2012 with the 4.6. The older tundra is currently clocked in with 70k miles and has had zero problems with it. You can't go wrong with either one, and gas mileage for both of them is relative close. Just depends on the "driver's" driving habits. My super that drives the older tundra, would prefer the 5.7 in the next truck purchase, only because fuel mileage has been relative close, but the driving experience with 5.7 in our opinion is better. I would suggest seeing if any of the rental companies out in your area has one to rent and drive it. Just my $.02. In either case good luck with your purchase!


Sent from my iPad using Tapatalk
 
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