MisterAutomatic
New Member
I recently acquired a 2004 KJ which needed a new engine. I found a used one locally and it put in. The Jeep turns over and drives but it jerks ridiculously when you accelerate usually around 20mph, or 45mph. Eventually it stops and drives smooth, but I need to fix this. I noticed when I floor it the Jeep doesn't do anything at all. I had a guy from Auto Zone run a diagnostic on it, and the machine kicked back 15 errors. I was wondering if there were any particular issues I could check for directly while I research these error codes.