GM Service Manual Online
For 1990-2009 cars only

EVO Diagnosis

Subject:Service Manual Information on Electronic Variable Orifice (EVO) Diagnosis

Models:1996 Saturns equipped with vehicle - speed sensitive, variable - effort power steering.



Purpose

Diagnostic information on the electronic variable orifice (EVO), located in the "Steering" section of the "1996 Chassis Service Manual," is incorrect. When diagnosing the EVO system on a 1996 vehicle, refer to the EVO diagnosis in the "1996 Powertrain Controls Service Manual" for the correct diagnostic procedures.