P/S - Misdiagnosed Crack in Pump Pulley

89chevy05

Number: 89-81-3B
Section: 3B
Date: FEB., 1989
Subject: APPARENT "CRACK" IN POWER STEERING PUMP PULLEY


Model and Year: 1987-89 CAPRICE, CAMARO 1987-89 S/T, R/V, C/K TRUCKS, G AND M VANS



TO: ALL CHEVROLET DEALERS


The presence of a gap in the grooved section of the power steering pump pulley (see Illustration), may be misdiagnosed as a crack.

The pulley is designed and manufactured with a provision for the gap to be present and has no negative effects on the accessory drive system.

A gap width of up to 1 mm should be considered normal.

A power steering pump pulley should not be replaced due to the presence of the gap.