Safari Van 2WD V6-4.3L VIN X (2003)
Power Steering Line/Hose: All Technical Service Bulletins
Steering - Whistle Noise When Driving Straight
Bulletin No.: 03-02-32-047
Date: October 23, 2003
TECHNICAL
Subject:
Whistle Noise from Front of Vehicle (Install Power Steering Hose Adapter)
Models:
2002-2003 Chevrolet Astro Van Models
2002-2003 GMC Safari Van Models
Condition
Some customers may comment on a whistle noise from the front of the vehicle, but noise will quit when turning the steering wheel.
Cause
Interaction with the fluid flow through the pressure port and the poppet valve at the power steering (PS) gear box may cause this condition.
Correction
Install an adapter and 0-ring to the PS gear box high pressure inlet using the following procedure.
1.
Remove the return line from the PS gear box in order to gain access to the high pressure line.
2.
Remove the high pressure line from the PS gear box.
3.
Install the adapter and 0-ring to the PS gear box high pressure inlet.
Tighten
Tighten to 27.5 N.m (21 lb ft).
4.
Install the high pressure line and 0-ring to the adapter.
Tighten
Tighten to 27.5 N.m (21 lb ft).
5.
Install the return line and 0-ring to the PS gear box.
Tighten
Tighten to 27.5 N.m (21 lb ft).
