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The major complaint that I had with my 04 Liberty was that it went into overdrive and the torque converter was locked up at about 40 MPH, just way too early. No I mean it was WAY TOO EARLY! LOL It felt as if the engine had no power, if you needed to acellerate. I'd always have to put my foot to the floor and wait for it to downshift. Even then, it seemed to hesitate for a bit.
This issue is my primary complaint with my 2006 KJ Renegade. I'd say it's my only real complaint. The engine/tranny combo just cannot cut the mustard. The three main symptoms are:
1. It is locked into OD above 40mph. If I'm on a highway going 60 and I need to go 65 to pass someone, I need to floor it to get there, and it takes 10-15 seconds to actually get there. I press the pedal, a second or two pass then the RPMs rev like mad and it slowly accelerates to 65.
2. We have hills in southwestern PA. Not huge mountains, but some steep climbs over the course of a mile or so. If I'm climbing one of these hills at 40mph, it refuses to downshift into 2nd gear. The RPMs will drop all the way to 1200 or below with the engine lugging badly before it downshifts. If I floor it, it will downshift and rev to 3500RPM, accelerating much more than I need it to. If I then let off the gas slightly, it upshifts back into 3rd where the RPMs fall out and it's lugging at 1200 again. If I want to climb the hill at a consistent 2400 RPM at 43mph, I have to manually put the tranny in 2nd.
3. My in-laws have two driveways. Both driveways are concrete They're both quite steep, like 35% and 45% grade. If I park in them facing downhill, I have a very hard time backing out of them. The engine revs and the rear end shudders, but it doesn't want to go. I need to put it in 4hi to get out of the steeper of them, and even then a few times it just sat there with the engine revving and would not go.
So if you've owned a KJ and experienced these symptoms and now you own a KK with the same engine transmission, can you say that these problems no longer exist in the KK?
I never owned a KJ but I can tell you that acclerating from 60mph it will take about 1/3 throttle for it to kick down. When it does it takes only a few seconds to reach 65mph.
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