I drive a 2010 Nissan Altima 3.5L V6 SL Coupe with the CVT, just ticked over 130,000 miles and I’m having a bit of an issue.
When starting from a dead stop or around the time it should shift into 2nd gear the acceleration will cut out completely. It doesn’t rev pointlessly, the acceleration just stops. I can get the engine to rev momentarily and jerk forward but actual acceleration is only possible by completely flooring the gas pedal and “powering through” the issue.
I’ve taken it to a mechanic twice, the first time they replaced the Mass Airflow Sensor and told me that there had been too many old codes to get a clear picture of what was happening for certain and to bring it back in a few days to see what new codes had appeared. I bought it back three days later after experiencing the issue again. When they attatched the sensor it brought back no relevant codes, and the only sign of any issue with the car was the battery was .4 volts below the expected output.
The mechanic said that the codes told them nothing relevant but even if it probably wouldn’t help they’d be happy to fix the battery issue. I can’t afford to make repairs in the hope that it might possibly help. So I guess what I’m asking is what could be causing this issue and is it likely to kill my car if I don’t get a repair quickly?