i use "4" untill im over 50mph :thumbup:


i wish i could flash the ecu.

 

The vehicle will attempt to learn how you drive, so that is probably why it's shiftng randomly. Mine was kinda sensitive in the shifting patterns for the first month I had it and now, a year later, it shifts fine. Once it figures out your driving patterns, it should settle down some.

 

The vehicle will attempt to learn how you drive.. Once it figures out your driving patterns, it should settle down some.

Will it become self aware and search for Sarah Connor?

I've noticed this too. I switch between 4 and 5 as well. I drive up a mountain everyday to get back home going about 45 mph the tranny seems not to know what gear it should go in to. Sometimes it will go low and then switch back up when it realizes its too low for the climb.

Yup, that's exactly what I'm talking about. I took my Tacoma up to Hendersonville NC on Saturday night so I could try out some medium grade long distance slopes and found that it didn't have too much trouble so long as I kept speed up over 50mph. I guess that's the answer. Leave it in fourth until you get over 55 then move it to overdrive.

 

I've noticed this too. I switch between 4 and 5 as well. I drive up a mountain everyday to get back home going about 45 mph the tranny seems not to know what gear it should go in to. Sometimes it will go low and then switch back up when it realizes its too low for the climb.

 

I think it's the nature of the beast to get into 5th gear as quickly as possible, probably for gas mileage reasons, but I've never liked it or gotten used to it after 2.5 years. This truck needs the economy/power switch that has been common for toyotas over the years. It's an real fun issue with the drive by wire if you're up in fifth gear cruising along and want to pass, mash the pedal, wait a milisecond or two as the electronics decide what gear to downshift into, then it launches forward, downshifting two or three gears as long as you have your foot in it, as soon as you lift, it can't get back into fifth fast enough. Cruise control is fun too, it'll stay in fifth climbing a grade, long after it should have downshifted into fourth, or maybe even third, then it leaps forward, downshifting into second or third, gets up to cruise setting at full throttle, then shifts back into fifth ASAP.

It's weird this truck does not have an economy/power switch or tow/haul mode like the GM's. Did I mention the GM's have speed compensated stereo volume, thank God I've got the steering wheel controls, cause I'm on and off the volume constantly.

Having said all that, I like this truck, my first Toyota after 5 GM trucks.

On a different note, anyone here know "Open Taco" in Portland Maine, He made me a PM offer December 9 to sell me his 16" aluminum wheels and Rugged Trail tires he had posted here for sale, I replied in the affirmative on December 11 and haven't heard from him and I don't believe he's logged in here since?

 

I'm curious as to why the OP changed from manual to auto.

The reasons discussed in this thread are some of the major reasons why I do not currently nor eve in the future drive auto. I want to be able to shift when I want to, not when some computer thinks it's time or to save fuel.

 

:clap:

The auto gets better MPG buy the way.

 

Fifth, in the automatics is actually = to what was called overdrive, it’s to conserve on fuel. Every time you call for a little power it will down shift, espial in the mid ranges. If you are steady on the gas it shouldn’t downshift. Give it some gas and it WILL downshift.

 

the ECU has a short term memory

you havent had your truck long.......how many miles

what type of driving do you do 80% of the time...??

unless all the cops are on break
you will be surprised at actual rpms used
at any speed

the parametres on the ECU change each & every second
if you had a scan gauge you will see
"load" changing constantly....."ignition" advance changing constantly
& "TPS" throttle position sensor changing constantly
even in cruise control mode which is easily MORE
consistent than any human

 

Driving style? I definitely do not have this problem.

 

americans are lazy, thus the pletora of auto's.

i still say manual > auto.

and depending on the tamoma, the mpg can be higher on the maunal

 

That's curious. When I first got my 07 5-speed V6, I don't recall it doing that. It pretty much shifts into 5th at mid30s or at 40 and stays there unless I press the pedal enough.

Like the others said, give it a few thousand miles. If it keeps doing it, go talk to the dealer, maybe it needs a reflashing or something.