GM Service Manual Online
For 1990-2009 cars only

Object Number: 424776  Size: SH
(1)Power steering pressure sensor
(2)Power steering inlet pipe bolt
(3)Power steering inlet pipe
(4)Power steering inlet seal
(5)Power steering pump seal
(6)Power steering pump seal
(7)Power steering pump seal
(8)Power steering pump cover bolt
(9)Power steering relief valve
(10)Power steering pump seal
(11)Power steering pump seal
(12)Power steering pump seal
(13)Power steering pump seal
(14)Power steering pump connector
(15)Power steering pump seal
(16)Power steering pump pulley

The power steering pump uses a 10 vane hydraulic pump in order to provide steering assistance. The pump is driven by the engine using a multi-ribbed belt. The pump uses an engine speed sensing-type flow control valve. The valve reduces the output pressure to the gear as the engine speed increases. The valve provides higher pump pressure when the engine is at or near idle speed. The valve provides a lower, but safe, pressure at a high engine speed.

This vehicle uses a power steering pump which is mounted at the front of the transverse-mounted engine, toward the front of the engine compartment. The pump has an external mounted power steering fluid reservoir.