who makes the engine and auto :icon_rolleyes:trans?

who makes the engine and auto :icon_rolleyes:trans?

The engine is made by GEMA.

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

The CVT automatic transmission is made by JATCO and is a model JF011E.

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

http://www.jatco.co.jp/ENGLISH/PRODUCTS/cvt.html#ff

Thanks...great information I am trying to learn as much as I can about this great machine. You people are a great source.

Okay, so let's see ..... we've got a Jeep made in America with a motor made by Hyundai and a trans by Nissan .... Now, that's a true world car ....

I read up a little about the engine the day I became aware of what a Patriot was (via a test drive) and the day before I bought it. It's actually kind of an interesting motor...to me as someone with a lifetime interest in internal combustion engines anyway...

Somewhere I read that the GEMA engine is somewhat 'blueprinted' as a part of the manufacturing process. That is, more parts are hand selected for fit than is the case on most engine manufacturing lines. This was done mainly for noise, I understand, but I believe it would also lead to improved durability and economy as well. Also the variable valve timing (on both cams no less) is a source of interest as well as a genuine boon in tractability across the RPM range. The motor seems quite tractable to me, and gets pretty good millage given what it's pulling around.

Another thing of interest is that they have apparently tried to isolate the oil pan and valve cover (iirc) from the block. Again, a noise thing. This made me concerned about oil leakage as the engine ages. I read the fine print of the lifetime powertrain warranty, and as I read it, such a defect would be covered. Second opinion welcome. I made the dealer xerox me a copy of the document and they were not terribly anxious to do that.

I'm glad to have the warranty because of the new things about the engine as outlined above. I figure that if unforeseen defects pop up in the VVT system, I've got some protection. On the other hand, I suspect that if/when the vehicle ages, the most likely problems will be defective computers and wiring harnesses. That means big money out of my pocket and into the dealers whether the problems get fixed or not. I'm hopeful that one of two things will happen by that time:

1) Someone will have hacked a diagnostic interface and some software to run it (already starting to happen it looks like)*

and/or

2) I can get a diesel engine that will fit from a wreck or overseas dealer.

*

I was thinking about this:

www freediag org

but in looking for the link, I notice this:

www linuxdevices com news NS6046512106 html

which is certainly the device I saw my dealer use today when they flashed new software onto my Patriot.

(I can't post URL's because I've not hit 5 posts yet I guess...an interested reader can probably glue things back together.)

Oh, here's the article I read before buying the Patriot:

http://www.autofieldguide.com/articles/020501.html

I just re-read it. I remember another selling point was the fact that the engine was designed to be able to take a turbo. That made me think that it was likely over-designed in the bottom-end for naturally aspirated duty.

Another thing I liked was the idea of the control valves in the manifold. Those wouldn't be covered by the warranty though as I read things. I'll hope for the best though, and appreciate the impact on mileage as long as they work.

Donīt forget that the CRDs are made by Volkswagen.

The engine and transmission are actually made by CRX in US, Mexico and Canada. They were designed by the consortium, but each member builds their own.

The biggest cost of an engine and transimission is the design and engineering so by sharing the cost it is cheaper than if each did their own.

... I suspect that if/when the vehicle ages, the most likely problems will be defective computers and wiring harnesses. That means big money out of my pocket and into the dealers whether the problems get fixed or not.

Wha...? A defective computer won't be covered by the Lifetime warranty..?

Wha...? A defective computer won't be covered by the Lifetime warranty..?

Not as I read things. My xerox copy of the warranty is in my car a few blocks away or I'd have another look, but as I recall things, what is covered are basically whatever is bathed in oil. Not the clutch (even if it _is_ bathed in oil I suspect), not the ignition, not the alternator, not the AC compressor, not the power-stearing, etc, etc. I vaugly remember the CV joints being covered to my surprise, but I'd have to look again. The upshot is that most of the things that are likely to go bad on an aging car are _not_ covered. (You think DiaCry are stupid?) I can't remember if the customer is on the hook for labor costs or not...probably are.

I'm afraid that if an electro-mechanical system (esp, the VVT system) has a genuine problem originating with the valve drivetrain proper, the first thing which will be blamed would be the computer. After I buy a few of those with my own money (and a few more diagnostic checks on top of that), _then_ _maybe_ the problem would be fessed up to if I have not gotten sick of things and dumped the car first.

I hope I am proven wrong in my jaded view of things. Will see...