Two problems related to steering gear box sector shaft have been reported for the 2003 Chevrolet Avalanche. The most recently reported issues are listed below.
Noticed clunking in steering, GMC dealer replaced intermediate steering shaft, under warranty at approx. 20,000. Clunking returned again at 40,000 miles, and again replaced intrmediate steering shaft. , at the cost of $270. This is a lot to spend every couple of years for a problem that is so well known and documented in chevy and GMC products of this type (avalanche, suburbans,tahoe and yukons) although it is not suppose to be a "safet issue", it is quite discerning, and I believe gm should provide some type of appopriate action to owners of these vehicles.
1. Loose steering: inetmediate steering shaft, 2. It has not failed. According to the dealer it was twisted. 3. Part was straightened out, and a new replacement part was ordered. As of this writing this is the 2nd time this has happened with the same part. It has be over 30 days.