V6 Motor on a 2008 Urban Runner

[bigt2148]

I have a question for the big toyota buffs on here. As you may know from the previous thread, I am totally new to toyota. I was amazed with the quailty and value.....not to mention they look awesome. I have a question.....Where did the motor come from in my truck? How old is it? Is it a good motor? How many miles will it go before its "worn out." I know nothing about the motor and would like to understand more about it.

 

[CJ3Flyr]

I have a question for the big toyota buffs on here. As you may know from the previous thread, I am totally new to toyota. I was amazed with the quailty and value.....not to mention they look awesome. I have a question.....Where did the motor come from in my truck? How old is it? Is it a good motor? How many miles will it go before its "worn out." I know nothing about the motor and would like to understand more about it.

The motor has been around since the early 2000's. It started in the T4R in '03. Around 2005 it got VVTi and a few more ponies. Nobody seems to have trouble. I get the sense that most people are expecting 200k without any major problems (self included).

If you're asking 'cause you've heard Toyota V6's blow head gaskets that's old news. In the late 80's and early '90's there was a 3.0L V6 that had issues. It evolved to a 3.4L. The 3.4L of the mid/late 90's is also a very good engine.

Read here and follow some of the links contained within, geat stuff! http://www.toyota-4runner.org/showthread.php?threadid=4297

:cheers:

 

[bigt2148]

what is VVTi?

 

[CJ3Flyr]

what is VVTi?

Variable Valve Timing... It allows the engine to run more efficiently; produce more power over a wider range of rpm and load conditions.
:cheers:

 

[Uneek]

The V6 comes from Toyota's GR engine family. It's a fairly new engine. It's the successor to the MZ and VZ engine families. IMO, it's a great engine because Toyota designed from scratch to be a 4.0 and reduced bore and stroke to make smaller displacement versions, whereas other manufacturers usually start with a smaller displacement engine and increase bore and/or stroke to get a bigger displacement engine.

The 4.0 V6 in the 4Runner is the 1GR-FE. The 1GR made it's debut in the 4Runner in 2003. It was a brand new V6 for the 4th generation 4Runner. Currently the 1GR is found in the 4Runner, second generation Tacoma, FJ Cruiser and Tundra.

The GR family of engines includes the 2GR-FE (found on Camry, Avalon, Sienna, Highlander, RAV4, ES350, RX350 and upcoming Venza), 2GR-FSE (found on IS350 and GS350), 3GR-FSE (third generation GS300) and 4GR-FSE (IS250).

The 1GR only has VVT-i. The 2GR, 3GR and 4GR are dual VVT-i, meaning both the intake and exhaust cams are variable valve timing as well.

The applications above are for US models, additional information on the GR family can be found Wikipedia.

On a side note, 2005 was powertrain upgrades for the 4th generation 4Runner. VVT-i was introduced on the V8, 2UZ-FE. The 4.0 V6 always had VVT-i, in 2005 it got a 5-speed automatic (same one as the V8, was a 4-speed in 2003-04).

 

[RonMAIDEN]

VVTi which is similar to Honda's VTEC motors.

http://en.wikipedia.org/wiki/VVTi

 

[Methodical]

The 1-gr-fe is the main workhorse engine of toyota today. It is a completely modern state of the art design, introduced in the 2003 4runner.

as of yet, it has no chronic issues, that some engines develop

 

[Uneek]

VTEC and VVT-i both are some form of variable valve timing, but the implementation is quite different than Honda's VTEC, similar to iVTEC though.

VVT-i, valve timing is continously varied throughout the RPM range giving the engine optimal performance and economy. There is no change in lift. VVTL-i alters lift, but it's only found on the 1.8 I4, 2ZZ-GE (for US models, in the Celica GT-S, first gen Matrix XR-S and previous gen Corolla XR-S--lost track of what gen the Corolla is in, probably 9th now).

VTEC is mainly just lift, after the engine reaches a certain RPM, it switches over to a different cam lobe that changes the valve duration. Thus many who owned VTEC equipped Hondas, say it feels like a turbo kicking in when a specific point in the upper RPM band is reached.

(On a side note, Toyota and Honda offers similar technology, but the implementation and application are quite different, just like their hybrids.)

 

[AmbideXtrous]

Thus many who owned VTEC equipped Hondas, say it feels like a turbo kicking in when a specific point in the upper RPM band is reached.

I remember that kick in the pants well when I had my S2000. Right when the tach hit 6000 the car surged at an almost frightening speed. That is the point when I left the other guy in the dust. Ah, memories.