One problem related to noises during shifting has been reported for the 2001 Acura CL. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2001 Acura CL based on all problems reported for the 2001 CL.
I was driving on the highway, in morning rush-hour traffic, at about 60 mph when the transmission started to shift erratically for a number of seconds. Without warning, the car downshifted and I nearly hit my head on the steering wheel. Fortunately, I was in a stretch where traffic was somewhat lighter, reducing the risk of being rear-ended. The transmission was completely uncontrollable for the remaining mile-or-two of my commute. Once I was off the highway, the engine was running at about 4,500 - 5,000 rpm although I was doing only 15 mph. Finally, reverse was inoperable once I reached my office park and tried to back into a parking space. I called Acura roadside assistance, which dispatched a flatbed. The car was towed to Acura of boston. Eventually, I was told I would be receiving a "new" transmission. However, I believe it is a rebuilt transmission from another failure. I had noticed a strange humming noise almost immediately upon having the car returned to me from the dealer. I spoke to Acura of boston and sunnyside Acura (nashua, nh), and was told no noise could be heard by the techs or the advisors. This is, apparently, very similar to the experiences of other Acura Cl owners. And, it appears that Acura knows about the defects/problems, but is unwilling to acknowledge it publicly by issuing a recall. I could have been seriously injured or killed, and others have said the same thing. This is very disappointing for any car, never mind a car(maker) with this "reputation" and price tag. Dt.