GM's 2.7L - Deep Dive

[HM12460]

Can it alternate the cylinders that get shut down? such a design would help distribute wear evenly. As a guy who makes “design choices” in my realm, I’d be all over that. And if so, 2 cylinder mode probably wouldn’t bother me too much, unless it started to voice the signature of a riding mower. if it did that, in a sedan I might still be ok with the idea psychologically. But like many here, the thought of my truck running on 2 cylinders might not be something I could handle.

Yes. It alternates which cylinder's get shut down.

 

[Bend3r]

Now if GM would just attach a second 2.7T at a 90 degree angle to the first one…..

I had to log in from lurking just to like this post

 

[Wrenchturner44]

Yuck...I much prefer the cartridge style - so easy to inspect the pleats for debris and health of engine. Also, less impact to the environment.

Cartridge style oil filters do have the benefits you mentioned. It is the execution of how the housings are attached the engine block that I have a problem with......just ask many a BMW owner about how they developed leaks.

 

[buster]

I was reading from something on another forum and a GM tech mentioned this was the 2nd GM motor to go past the 2 million mile mark on the dyno with very minor issues.

3rd Gen Colorado looks like it will be a reliable truck.

 

[4WD]

I was reading from something on another forum and a GM tech mentioned this was the 2nd GM motor to go past the 2 million mile mark on the dyno with very minor issues.

3rd Gen Colorado looks like it will be a reliable truck.

That is good news. Reading up to this point felt like 2 million miles ...

 

[oldhp]

I love my 2024 Canyon Elevation 4X4. Engine is pretty amazing, you can't see it though.

 

[meep]

I’m growing in my appreciation for a good, torquey, turbo 4. I spent some time in one last week (different make) and enjoyed the low pitch, low reving, higher torque dynamic.

 

[panthermike]

I’m growing in my appreciation for a good, torquey, turbo 4. I spent some time in one last week (different make) and enjoyed the low pitch, low reving, higher torque dynamic.

I share that sentiment. Our CX-9's 2.5T puts out 220hp/310tq on 87 which isn't crazy high, but it's such an enjoyable driving experience.

 

[loneryder]

They lost my interest when they brought up AFM.

 

[super20dan]

yea why does a 4 cyl engine need amf!

 

[Nessism1]

yea why does a 4 cyl engine need amf!

To eke out that that tiny extra bit of MPG, for CAFE.

 

[RichR]

yea why does a 4 cyl engine need amf!

Because every time GM sells three 2.7 's
a 6.2 is born!

 

[blueglide88]

Cylinder deactivation ...........sounds like future problems to me. How long have they been using that feature on this engine?

 

[hemioiler]

Cylinder deactivation ...........sounds like future problems to me. How long have they been using that feature on this engine?

From the beginning, but its completely different mechanically vs the AFM/DFM in the 5.3 and 6.2 which is trashing engines pretty badly there.

I'm not a fan of this tech either, but it doesn't have to mean its going to trash your engine, its pretty bullet proof in the hemis for example.

 

[buster]

Cylinder deactivation ...........sounds like future problems to me. How long have they been using that feature on this engine?

It's fine. Gen2 has it and it's not a problem.

 

[buster]

Nicest mid-size on the market IMO.

 

[4WD]

Nicest mid-size on the market IMO.

View attachment 260328

My buddy looked at them and came home with a full sized ZR2 Bison
They have 2 JL’s and a JT anyway … (Rubicon level) …

 

[panthermike]

Nicest mid-size on the market IMO.

Very nice truck Buster! Sometime soonish I'm in the market and this is a consideration. My only "concern" is how it is with a booster and a forward facing car seat but will have to test directly. Love that the Colorado/Canyon have the rear a/c vents.

 

[thunderfog]

Nicest mid-size on the market IMO.

View attachment 260328

Did you pull the trigger on that bad boy?

 

[buster]

Did you pull the trigger on that bad boy?

LOL no I still have the 22.