Tacoma and Diesels

vtdog2 · **Joined:** Mon Nov 18, 2013 5:22 pm **Posts:** 20

As a former owner of a CRD (thank god I had the sense to get rid of it!) I thought you guys might have an interest in the following article from Toyota about the prospect of a diesel in a Tacoma:

http://www.torquenews.com/1083/toyota-e ... oma-coming

PS I have owned my Tacoma for about 4 1/2 years now and other than one recall, just oil changes. The MPG does suck!

flash7210 · **Posted:** Sun Feb 01, 2015 10:47 pm

So Toyota is un willing to put forth the effort to build a U.S. spec diesel light pickup truck?
Mercedes seems to have no problem with that with their GLK250.
A fully loaded 4 door 4wd Tacoma is about the same price as a GLK250 diesel with 4wd.
And the GLK engine has more power and gets better MPG.
Yes, I know, the GLK250 is not a TRUCK. Hell, it's barely an SUV. But given a choice between the two I'd take the GLK. I mean seriously, if I'm gonna spend that much money on a new vehicle, why not get a Mercedes.

I'm anxious to see how the new Chevy Colorado diesel turns out.

geordi · **Posted:** Sun Feb 01, 2015 11:07 pm

Doesn't the Colorado have a VM 3.0L engine in it?

While I think that Mopar changed more than a few things (for the worse) on the CRD... The VM engineering wasn't stellar either. Thanks, but no thanks. The Germans have been building diesels since Rudolf himself named them, and doing a dang fine job. I don't know of a single poor example that comes down to the quality level of this Italian motor.

Now if you told me that they were putting in a Isuzu diesel or a Cummins or a Cat or a John Deere or an International or... Now we are talking. Anything but a VM or Chrysler. (I know Chrysler has no parts in the Colorado, but still)

tcoilburner · **Posted:** Sun Feb 01, 2015 11:34 pm

Colorado will have the newer licensed model of our engine. 2.8 I4 built in Thailand at Gm's plant there. They get to call it a duramax.

flash7210 · **Posted:** Sun Feb 01, 2015 11:47 pm

Of course chevy is calling it a "duramax" but its a 2.8 liter with about 370 ft lbs of torque.
Couldnt find anything conclusive stating that it was a VM but im pretty sure it is.
Its a totally different design from the liberty 2.8.

flash7210 · **Posted:** Sun Feb 01, 2015 11:56 pm

Here is another pic of the engine showing the egr setup.
Why does it look like there is a fuel line going into the port after the egr valve but before the intake connection?

ebbnflow · **Posted:** Mon Feb 02, 2015 12:40 am

Probably the dpf injector.

geordi · **Posted:** Mon Feb 02, 2015 2:45 am

Not there - The DPF is in the main exhaust line. That looks to me like either a long nipple (would have a permanently mounted rubber hose on the end) for a coolant line, OR it is for some form of oil line. There are precisely ZERO reasons you want to have a fuel line there, and nothing under it suggests an injector or any other kind of connection past the external. That looks like the same kind of threaded manifold that you find on the end of hard brake lines - the flared tubing slots in, and the manifold is what you turn to lock it down. No idea what it could be for in that application.

Looking at the front of the engine... Why is the crankshaft over there offset? That looks like a horrendous nightmare to try and work on. This is what happens when you use a computer to design an engine. Can you imagine what a HAMMER or a pipe wrench would look like if it was designed solely on a computer by one of these engineers?

Hoo boy.

WWDiesel · **Posted:** Mon Feb 02, 2015 9:16 am

Ya'll are aware that Nissan is going to have a 2015 V8 Cummins powered pickup the end of this year, so they say.

http://www.dieselpowermag.com/news/1308_diesel_nissan_titan_cummins_5_0_l_turbo/photo_05.html

GreenDieselEngineering · **Joined:** Sun Jun 07, 2009 5:10 pm **Posts:** 1111

That port after egr and before intake is a thermocouple to measure temperature, they just cut it off on the cut-a-way engine shown.

This engine is loosely a VM 2.8l designed back in 2008. GM has changed the injection system from Bosch to Delphi and massaged the cylinder head design (port geometry, etc.). There are other electronic changes to sensors to meeting BIN 5 emission standards.

I hope the Colorado sells like wild fire and it better come to market certified to at least 30 mpg highway.

diesel_guy86 · **Posted:** Mon Feb 02, 2015 10:48 am

I thought GM sold there share of VM? I was hoping it was an engine designed by isuzu.

jws84_02 · **Posted:** Mon Feb 02, 2015 8:32 pm

diesel_guy86 wrote:

I thought GM sold there share of VM? I was hoping it was an engine designed by isuzu.

IIRC I think Chrysler sold their share of vm and now vm is solely owned by gm. I could be mistaken though

Edit....I'm way off. Lol

WWDiesel · **Posted:** Mon Feb 02, 2015 8:46 pm

My understanding is VM is solely owned by Fiat now? That is why the Dodge 1/2 ton pickups have the VM motor in them and not the Cummins....

geordi · **Posted:** Mon Feb 02, 2015 9:00 pm

GM only had a piece of VM tangentially, because of GM's stake in Detroit Diesel, who themselves had a stake in VM Motori.

From what I understand, that connection was why the VM plant was selected for the Cruze diesel, but I didn't know that GM had screwed with the design and swapped out the injection system from Bosch to Delphi. I'm not sure what I think about that, but my gut reaction is "Oh yay, replace something time-tested with something most likely cheap and from China."

Last I heard however, Detroit Diesel sold their stake in VM to Fiat, on or around the same time as the bankruptcy sale of the Mopar assets and name (but not the liabilities like warranties) from Daimler/Chrysler to Chrysler/Fiat. The result was a screwing of anyone that had a claim (warranty or otherwise) against Chrysler, Daimler, or anyone else. Chrysler/Fiat then purchased the VM stake from DD... Which absolved GM of any ownership or interest in VM.

That they are still using the VM engine in the Cruze and the Colorado may just be a matter of buying the blocks from the previous arrangement, and doing their twiddling to the engine. Unlike what Chrysler was doing, buying the whole motor complete and dropping it into the Jeep with only modest bolt-on changes or programming things like the EGR.

I can't believe I'm saying this, but I almost prefer Chrysler's method, b/c anything that has been bolted on or programmed into an engine... Can be unbolted if it is useless dreck like the EGR system. If the injection system in the Cruze or Colorado sucks (or any other major design flaws crop up like we have found with the bolts / studs design)... It will be a LOT harder to replace / fix that screwup and swap to a Bosch injection system since they replaced the entire system with their own design.

At least the CRD has a CP3 pump and injectors that have both proven themselves to last WAY LONGER than the CRD ever will.

Lancer · **Posted:** Tue Feb 03, 2015 5:34 am

Just a point to note about the VM in our vehicles, is that pretty much the same engine is used in London taxis (the famous "black cabs") and they do literally hundreds of thousands of miles with only the mandatory regular servicing regime and regular safety/ emissions tests. Its also a very popular engine in delivery vans - again huge mileages with only regular servicing and Ministry tests.

truckbouy2 · **Posted:** Tue Feb 03, 2015 9:47 am

Nissan using the Cummins V8 is going to make it tough on Dodge. Sergio may feel a bit stressed.

WWDiesel · **Posted:** Fri Feb 06, 2015 9:05 pm

5.0L Cummins Vs 3.0L EcoDiesel Head To Head Comparison

For those interested:
http://www.dieselarmy.com/features/editorials-opinions/titan-5-0l-cummins-vs-ram-3-0l-ecodiesel-head-to-head-comparison/

geordi · **Posted:** Fri Feb 06, 2015 11:24 pm

I wish there was a way to do a side-by-side comparison between the CRD VM engine as delivered and the black cab and delivery versions from the UK. What did Chrysler do to screw it up so badly? They must have changed something serious to ruin the longevity so much.

Sent from my iPad using Tapatalk HD

Lancer · **Posted:** Sat Feb 07, 2015 11:32 am

I'm not trying to be critical, but I sometimes wonder if a lot of the common issues reported here are caused by something just in the US - fuel or oils or something. The reason I say this, is that remarkably few of the problems reported on here seem to occur in the UK. The torque shudder issue for instance was so rare, that when it did happen to me a few years ago, neither the dealer (a very good company) or ChryslerUK had heard of it. I had to copy the links to this forum to them, to show them what the issue was.

I have done quite a few things to my KJ, not because they were needed, but as a preventative measure, or because there was wear, so I improved/upgraded as needed (or sometimes just because I fancied

)

thermorex · **Posted:** Sat Feb 07, 2015 2:08 pm

Are the vm engines in London taxi turbo? I thought they are naturally aspired.

Tacoma and Diesels

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