The sun shell has been identified as a weak link if you abuse the transmission. The pump has been an area of concern on older model years also.
Transmission coolers have been installed by many members of our forum.
www.trailvoy.com
You may need a new transmission, or you at least need to have that one rebuilt.
Not anymore often than any other vehicle.
The 2003 Volkswagen Passat GLS 1.8T is semi reliable. It has problems with the engine, transmission and driveline. It has minimal problems with the steering, suspension, brakes, A/C and starting. Overall, it ranks 4 out of 5.
Honda recommends changing it at 100,000 miles. I personally recommend you change it every 75,000 miles. The 2003 Honda Accord had problems with the transmission so I would recommend this as a preventative measure.
There are several things that can cause your transmission to malfunction with only 48,000 miles on it. The most common cause is a plugged transmission fluid filter.
This Transmission was created in 2003.
The 2003 Elantra does not have a transmission filter.
The 2003 GMC Envoy is known for several common issues, including problems with the transmission, which can lead to slipping or failure. Electrical problems, particularly with the dashboard warning lights and various sensors, are also frequently reported. Additionally, owners have noted issues with the fuel gauge accuracy and potential engine overheating due to coolant leaks. Overall, while many drivers enjoy the vehicle, these issues can lead to reliability concerns.
Inside the transmission.
In the transmission?
in the transmission
The first two things to check would be the transmission fluid level, and have it checked for codes. A lot of transmission problems will set trouble codes.