Two problems related to transmission gear slipping have been reported for the 2004 Chevrolet Impala. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Chevrolet Impala based on all problems reported for the 2004 Impala.
My vehicle has 73000 miles on it the transmission has been slipping and shifting hard since Nov 2011. I had the transmission serviced as advised by a dealership. No change I have a n extended warranty that covers the problem if the dealer ship finds the problem. I took it to the place I bought that car from . They had a mechanic get in test drive it with a hand held meter for about 15 minutes a. They reported that nothing showed up and the trans is fine. I took it home and the entire way there it slipped from astop position and shifted hard into gear. I owe over a year and a half still in payment's for the car and the extended warranty expires on April 22 20012 . I don't have much time to go what do I do. John b I have reported the car a nd dealer to bbs for what that is worth.
Transmission started slipping on 04/16/08. I then took the vehicle to henderson Chevrolet on 04/17/08 for a transmission flush. On 04/18/08 the transmission progressively got worse and is undriveable. I am currently in the process of having repairs made.