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post #1 of 5 Old 12-28-2011, 01:20 PM Thread Starter
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2002 WJ 
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hard shifting 2002

A friend of mine asked me about her Liberty the other day. She said it was shifting at the right time but the shifts have become harsh. I asked if there was a check engine light on and she said no.

Fast forward to today and she said it is still shifting hard and the check engine light is now on. I have an OBD II scanner and will scan it tomorrow.

Any ideas without seeing a code first? I will post back as soon as I scan it.

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post #2 of 5 Old 12-28-2011, 04:18 PM
2006 KJ Liberty 
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We await your code(s). Can be a multitude of things...
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post #3 of 5 Old 12-29-2011, 01:02 PM Thread Starter
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P 0734
Gear 4 ratio incorrect.
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post #4 of 5 Old 12-30-2011, 12:20 PM
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Check the fluid level and quality first.

Check this out:

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post #5 of 5 Old 12-30-2011, 05:45 PM
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Originally Posted by vwbuge View Post
P 0734
Gear 4 ratio incorrect.
Since your girlfriend's Jeep is an '02 with the 45RFE this info may be incorrect, but with the 4th gear ratio code it's showing a problem with that clutch pack. I believe with that tranny the 2nd and 4th gears share the same clutch pack so your girlfriend is probably noticing the harsh shift from 1st to 2nd and you're getting a code for the 4th gear ratio - but it's all the same problem.

If your scanner can get the CVI numbers while you drive the Jeep. There is a specific range each clutch pack has to be within; if they're out of range then I hate to say it but you're probably looking at a rebuild or replace.

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