Two problems related to noises during shifting have been reported for the 2004 Toyota Camry. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Toyota Camry based on all problems reported for the 2004 Camry.
Recently I brought my 04 Camry to my dealer because of sulfur smell and rattle at light acceleration. The dealer verified the problems and replaced the converter and intake manifold according to the tsbs. They said they also had to re-program the ecm. Then after I picked up the car, I found everything is harder: the acceleration, steering, and braking. I found it is hard to maintain a speed whether on local or highway. On may 28,2005, while I drove the car on highway with 4 persons sitting in the car (including me), I found the steering was very hard and felted like it was locked, and I found it is very hard to accelerate to hwy speed and hard to maintain it. I brought the car to the dealer again on may 31. After having a technician test drove it, they told me it was similar to other Camrys (normal) and wouldn't want to solve my problem. I believe they never tried to reproduce my problem (by having more people sitting in the car). I think this problem is a safty issue so I file complaint with NHTSA. I also feel the car doesn't shift right and engine is noiser after the convert/intake change and re-programming.
When the transmission shifts from 1st to 2nd gear, at a faster engine speed of about 2,800 to 3,000 rpm, there is a rough spot or rough noise. When the transmission shifts from 1st to 2nd gear at lower engine speeds a noise is not noticeable. For a long time I thought the noise was from rough spots in the roadway, but the noise kept occurring on smooth pavement. There is a definite defect in the transmission.