One problem related to engine has been reported for the 2005 Acura TL. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2005 Acura TL based on all problems reported for the 2005 TL.
The car experiences fluctuations in vehicle rpm at all speeds while keeping the accelerator pedal constant. This is noticed with and without the air conditioner on and at various speeds but more noticeable at around 40mph. I brought it to my dealers attention at the second year state inspection service (15,793 miles) but nothing was done as I thought I would continue to monitor it.