PDF associated:
/PT 23-0001.pdf
JDB0351 PT 23 0001 Application Problem Cause Solution Note 2004 2010 Chevrolet Malibu 2005 2010 Pontiac G6 2005 2008 Saturn Aura Complaints related to noise specifically clunking during low speed turns The manual rack and pinion 23 1810 is part of the Electronic Power Steering System EPS for the vehicles listed above EPS systems provide assist only when needed so the driver feels when the motor engages disengages for assist on assist off driving The different torque characteristic of this system is not typical of a hydraulic system The noise complaint is most likely due to three possible conditions that are clearly defined in GM TSB 06 02 32 007G which are Intermediate shaft sticking or slipping Interference between the intermediate shaft clamp and steering gear input shaft Strut mount or sway bar link condition In addition to the TSB information there is also a precise mounting bolt torque specification that must be followed to ensure that the rack is properly mounted to the frame If this specification is not followed vibration can also lead to misdiagnosed noise Tighten mounting bolts to 52 ft lbs 70Nm plus an additional 90 degrees In addition to the listed TSB please refer to your vehicle s service manual for specific diagnostic instructions This ProTech bulletin is supplied as technical information only and is not an authorization for repair 23 1810 Making Clunking Noise It s Probably Not the Rack
