By the way, here is some real facts on the 4.0 I6 that was in the TJ/LJ...
One the other hand...
And just this past June Jeep has to recall 220,000 2011-2012 JKs affected to fix transmission issues. A full listing of JK recalls and TSBs can be found at: Recalls and TSBs. - JKowners.com : Jeep Wrangler JK Forum
Lastly, for comparison's sake, my 2005 LJ has had a total of two recalls in the past eight years according to the NHTSA, one for replacement master brake cylinders and the other for another that involves not using the parking brake in models with automatic transmissions.
The 2012 model year Wrangler has already had four in a year. The 2007, the first year of production, has had eight.
So maybe you can see why I am not so easily convinced that the new JKs are "superior" to the TJs...
The 4.0 is one of AMC's best-known engines. It was one of four AMC engines kept in production when Chrysler bought AMC in 1987. Chrysler engineers continued to refine the engine to reduce noise, vibration, and harshness. The last in the line of the AMC inline sixes, the 4.0 is regarded as one of the best 4x4 off-road engines (Source). A Motor Trend long-term test of a 1997 Cherokee XJ noted "this long-lived OHV powerplant has a reputation for getting people where they need to go" as well as "much love expressed by owners for the torquey 4.0-liter/190-horsepower inline six." The engine is known for longevity and to go more than 300,000 miles without rebuilding.
One the other hand...
The JK runs almost all vehicle functions, other than steering, under computer software control. Engine, transmission, and to some extent braking are computer controlled, as are lights and auxiliary systems. This is a first for the Wrangler. As of mid-2007, there have been three safety recalls for software fixes.
And just this past June Jeep has to recall 220,000 2011-2012 JKs affected to fix transmission issues. A full listing of JK recalls and TSBs can be found at: Recalls and TSBs. - JKowners.com : Jeep Wrangler JK Forum
Lastly, for comparison's sake, my 2005 LJ has had a total of two recalls in the past eight years according to the NHTSA, one for replacement master brake cylinders and the other for another that involves not using the parking brake in models with automatic transmissions.
The 2012 model year Wrangler has already had four in a year. The 2007, the first year of production, has had eight.
So maybe you can see why I am not so easily convinced that the new JKs are "superior" to the TJs...
Last edited: