Power steering hose

An NHTSA Engineering Analysis into Winnebago vehicles. Closed 12 April 1989.

Investigation
EA89016
Type
Engineering Analysis
Opened
27 February 1989
Closed
12 April 1989

What NHTSA investigated

Summary:according to winnebago, road and engine vibration may causefailure of the power steering high pressure hose in certain h bodyvehicles.winnebago has stated that a metal elbow in the hose assemblymay fatigue.to remedy this, winnebago has developed a stablizing bracketto alleviate relative motion of the components.production models modifiedon august 9, 1989.LEAKAGE of the power assist hydraulic fluid will not cause a loss insteering.it is anticipated that power assist will degrade gradually,depending on the size of the opening, and the amount of steering assistrequired (i.e. Low speed parking maneuvers).the primary risk is thathydraulic fluid atomized under pressure from the power steering hose willcontact an ignition source resulting in a fire.the affected joint islocated below the mid line of the engine compartment, however,circumstances may cause the atomized fluid to contact an ignition source(exhaust, wiring, etc.).by letter dated march 30, 1989, winnebago announced the recall of theeffected h body motorhomes.===

The recall that followed

  1. Winnebago — Steering: Hose, Piping, and Connections89V0600007 April 19897,688 vehicles

Vehicles covered

MakeModelModel years
WinnebagoCENTAURI1985–1989
WinnebagoLESHARO1985–1989
WinnebagoPHASAR1985–1989

Source

From NHTSA’s investigation file, rebuilt daily. To report a problem with your own vehicle, go to nhtsa.gov/report-a-safety-problem. All open investigations.