Engine Mechanical problem
1993 Other Infiniti Models 6 cyl Two Wheel Drive Automatic 194000 miles
I have an old Infiniti J30 with about 194000 miles on it. As old as it is, I love the car but the old girl is sick right now. With the car in drive and moving If I accelerate up to 2300 rpm, I loose all power with little or no throttle response, and the car starts jerking. When I stop and place the car in neutral I rev up the engine and at around 2300 the engine begins to run rough as I increase rpm beyond 2500 the engine once again revs up smoothly with good throttle response.
The transmission shifts normally with no issues that I can tell. At this point I think it may be the timing belt but I'm really not sure. Can you offer any suggestions for me?