1998 Volvo VN660 problems

Odi's investigationconcluded that the legs that retain the turn signal canceling ring (tscr), part number 1607363, to the steering wheel installed in model year 1998 - 1999 vn and vhd series vtna (volvo truck north america) vehicles are prone to cracking and breaking.when the retention legs break, the separated pieces of the tscr typicallyrepose in the host cavity in the steering wheel hub where they were deposited.odifound that broken pieces of the tscr either (1) migrated from their host cavity and dropped completely from the steering wheel assembly or (2) lodged in various areas of the steering wheel proximate to the tscr.odi simulated various locations and positions that a separated piece of the tscr might become lodged within the steering wheel assembly, but none of these simulations generated any appreciable increase in steering effort.

EA04016

Odi's preliminary evaluation focused on the potential for a broken, bent, deformed, fragmented or displaced turn signal canceling ring (tscr), vtna part number 1607363, to restrict thevehicle operator's ability to turn the steering wheel.the pe identified thirteen vtna warranty claims that allege that the tscr had failed and that the vehicle steering effort had been adversely affected.to date, odi has not found any samples of a failed tscr and has not been able to definitively establish whether a failed tscr can or cannot contribute to increased steering effort.odi believes that it is appropriate to conduct further investigation(ea level) to better understand the characteristics of tscr failures and to assess the effect, if any, that these types of failures could have on vehicle steering effort.

PE04014