K-cars

[MadMan]

Originally Posted by bgadow

I know of some very nice folks who somehow remain loyal to GM despite having owned a Trailblazer with a failing straight 6. I can't remember just now what fails on them but those vehicles had been pampered.

That's unfortunate. I've rarely seen any problems with those weird straight sixes (barring the occasional hoopdie). It's usually literally everything else on those cars, besides the engine itself. Maybe it's just something simple, like the ignition coils, or something. I've changed so many of those. (It's just popping in my head that it might be a dirty throttle plate. Like most electronic throttle cars, it's SUPER sensitive to that.)

And then hummer wanted to use the straight six in the h3 (I think?) but it was too big for them (too big for a hummer? lol) so they chopped off one cylinder. lol

The Trailblazer straight six is a helluva lot better than that 4.3 v6 vortec piece of ass. God I hate those so much.

[mgross0]

I hate GM with a burning passion, but their engines are usually ok. It's the rest of the package that kills them. DexCool antifreeze that turn into concrete, plastic timing belt idlers that don't like engine heat, transmissions that puke their guts out, and electrical systems that make Lucas look good. Do you know why they used to say "this isn't your fathers Oldsmobile"? Because it wasn't on fire.

[dieseljeep]

Originally Posted by MadMan

That's unfortunate. I've rarely seen any problems with those weird straight sixes (barring the occasional hoopdie). It's usually literally everything else on those cars, besides the engine itself. Maybe it's just something simple, like the ignition coils, or something. I've changed so many of those. (It's just popping in my head that it might be a dirty throttle plate. Like most electronic throttle cars, it's SUPER sensitive to that.)

And then hummer wanted to use the straight six in the h3 (I think?) but it was too big for them (too big for a hummer? lol) so they chopped off one cylinder. lol

The Trailblazer straight six is a helluva lot better than that 4.3 v6 vortec piece of ass. God I hate those so much.

I thought the Hummer had a Diesel engine. Maybe, just the real big ones do.
Another one not on my list of wants.
Seeing as I don't follow GM at all, but I never knew Chevy built an inline six that late.

[MadMan]

Originally Posted by dieseljeep

I thought the Hummer had a Diesel engine. Maybe, just the real big ones do.
Another one not on my list of wants.
Seeing as I don't follow GM at all, but I never knew Chevy built an inline six that late.

It was certainly strange. idk what possessed them to do such a thing. iirc, they borrowed a lot from their Opel division for that motor, but I don't think the actual motor is from them, because it's a big hulking mass that's really only suited for an suv. Anyone familiar with contemporary GMs will know that the straight six is an oddball. It's just... different from GM's usual fare.

The actual HMMV hummer has a diesel. The H2 is a giant box on top of a Chevy Tahoe frame, and the H3 is a pansy excuse for an suv with a straight 5 gas engine.

[mr_rye89]

Huh. I thought the 43 vortecs where alright.

I've got a c3500 box truck at work with a 454 vortec with over 200k on the clock and I can't seem to kill it, the power steering pump is on its way out though....

[MadMan]

Originally Posted by mr_rye89

Huh. I thought the 43 vortecs where alright.

I've got a c3500 box truck at work with a 454 vortec with over 200k on the clock and I can't seem to kill it, the power steering pump is on its way out though....

Well, the 454 is completely different. And to be fair the actual 4.3 motor is ok. The older ones were certainly decent. But the ones with spider injection are just crap. I've never seen one running right, they always have some kind of problem. You can throw everything you have at one, and it just won't be right.