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Miscellaneous3.7L & 3.8L V6 Engines Headed For Retirement?
Posted by RUBICON on 2006/7/25 17:19:00 (5131) reads

Are the 3.7L and 3.8L V6 engines found in Jeep vehicles headed for retirement?

Automotive News is reporting that DCX is spending $2 Billion to develop a V6 engine lineup that will replace all the V6 engines in it's Merecedes, Chrysler, Dodge, and Jeep vehicles.

Appropriately enough, one of the three engine manufacturing facilities will be in Jeep's hometown of Toledo, OH. $700 million is being invested in the Toldedo Machine plant to prepare for production of the new engine.

Further details, including launch dates, should be coming by the end of the year.


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Poster Thread
Posted: 2009/4/18 6:19  Updated: 2009/4/18 6:19
Just popping in
Joined: 2009/4/18
Posts: 3
 Re: 3.7L & 3.8L V6 Engines Headed For Retirement?
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Poster Thread
Posted: 2006/7/27 4:30  Updated: 2006/7/27 4:30
Not too shy to talk
Joined: 2005/12/18
From: Virginia
Posts: 33
 Re: 3.7L & 3.8L V6 Engines Headed For Retirement?
The 4.0 used in the Nitro is an aluminum block, while the 3.8 they are using is an iron block. I'm not great with engines, but are there some durability concerns with an aluminum block on a trail rig? I'm trying to figure out why they didn't put in the 4.0 Or maybe it is a price or availability thing. I would think the aluminum would be cheaper to produce, though, what with the price of metal and the reduced tooling costs.

Poster Thread
Posted: 2006/7/27 8:51  Updated: 2006/7/27 9:07
Home away from home
Joined: 2005/7/20
From: The Great White North
Posts: 494
 Good point
Hmmmm good point on the 4.0L V6, phish-man. Who wants an aluminum block in a Wrangler? (Though I DO like the numbers 255/275.)

I guess the 3.8L V6 looks a little better to me now. But only a little. And even though it's from a Caravan, it seems to be tried & true. Can't wait for the road tests...

Allpar reports that the 3.8L V6 is a "stop gap" until the new V6's come, but quote the changeover date as 2012. So it looks like we should have 6 years or so of the minivan engine -- which is still a pretty short run. (

How's that old, venerable inline 4.0L 190+HP looking now??

Poster Thread
Posted: 2006/7/26 1:53  Updated: 2006/7/26 1:53
Home away from home
Joined: 2002/3/22
Posts: 247
 Re: 3.7L & 3.8L V6 Engines Headed For Retirement?
Looks like I will be waiting until 2010 to buy my Wrangler, unless they offer a CRD Wrangler, or the 4.0.

That's okay, there is something to be said about tried and true technology...My 2.5 L 1997 Wrangler has 160,000 miles and no signs of giving up.
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