Three problems related to steering rack and pinion have been reported for the 2004 Toyota Sienna. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Toyota Sienna based on all problems reported for the 2004 Sienna.
In motion, on dry, off-camber highway curves, with slight acceleration, the abs/vsc /trak engages, briefly jerking the steering to one side. Dash warnings: "vsc" "trak off" + "check engine". Reducing mechanical "slop" (wheel bearings, steering rack & pinion, etc. ) tends to reduce frequency of occurrence. Toyota dealer diagnosis: "steering control system fault". >"Toyota knows about -- but, does not know how to fix this problem. "< dealer-suggested workaround: "pull fuzes to disable vsc and abs systems. . . " dealer repair documents are with previous owner. . .
The contact owns a 2004 Toyota Sienna. The contact stated that the steering rack alternated between manual and power. The failure occurred twice and seemed to occur only in winter months. The vehicle was taken to a local mechanic and the steering rack from the firewall to the tie rod ends were replaced at the owners expense. The contact called the manufacturer who stated that the problem was not covered under warranty. The failure mileage was approximately 70,000. The current mileage was approximately 81,500.
While making a sharp left turn, I can hear clunk, clunk from the steering column. Dealer says the steering column (rack-pinion) joint is bad, need replacement, not under warranty, will cost 500 to 600 $, not an immediate safety threat , can wait until the noise gets too bad. I am not happy that such things break down at 45,000 miles.