Control Valve Body: Cleaning
WARNING: This page does not describe the selected car, but rather 43 other vehicles, including the 2003 Pontiac Montana, 2003 Pontiac Grand Prix, 2003 Pontiac Bonneville, 2003 Pontiac Aztek, and 2003 Oldsmobile Silhouette. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION:
DO NOT use solvent to clean solenoid valves or neoprene seals. DO NOT use shop rags to clean valve body components. Handle parts carefully to avoid nicks and scratches.
Clean control valve body thoroughly in clean solvent. Move valves with a pick or small screwdriver to dislodge any dirt or debris. Use air nozzle to dry control valve body and to blow out all passages. Gently probe small passages with a piece of identification tag wire or equivalent.