Hi all QX4 experts... Have a 2001 QX4 with 116,000 miles. Past few weeks has been doing some crazy shifting-but not all the time. My mechanic is stumped...no tranny codes showing. downright scary when driving in the colorado mountains! Example 1: when pulling out from a stop into fast moving traffic, RPM's will jump up to 5 or 6 and SUV will not accelerate very fast or shift. Eventually if I lift my foot off the gas pedal, it will shift. Example 2: when driving around 50 or 60 MPH, and need to pass or accelerate to get up a hill, SUV will not shift up. You can feel where it needs to shift (slight pause), then RPM's will just continue to go up with no shifting. Again, if I lift my foot off gas pedal it will shift (eventually). Have had this vehicle for 30,000 miles, never done a tranny service. Do you think this might help? Any advice greatly appreciated.
