Coolant Crossover Pipe Installation: Overview

WARNING: This page is about a different car, the 2006 Pontiac Montana SV6, 2006 Chevrolet Uplander, and 2006 Buick Terraza. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying Coolant Crossover Pipe Bolts

Courtesy of GENERAL MOTORS CORP.

Install the coolant crossover pipe assembly onto the engine.

NOTE: Refer to FASTENER NOTICE in Cautions and Notices.

Install the engine lift bracket (1) and the front coolant crossover pipe bolts (3).
Tighten: Tighten the bolts to 50 N.m (37 lb ft).
Install the side coolant crossover pipe bolt (2).
Tighten: Tighten the bolt to 10 N.m (89 lb in).

Fig 2: Identifying Idler Pulley Bolts & Pulleys

Courtesy of GENERAL MOTORS CORP.

Install the idler pulleys and bolts.
Tighten:
- Tighten the bolts (1) to 50 N.m (37 lb ft).
- Tighten the bolt (2) to 30 N.m (22 lb ft).

Fig 3: Identifying Thermal Bypass Hose & Clamp

Courtesy of GENERAL MOTORS CORP.

Install the coolant vent pipe and bolt (2).
Tighten: Tighten the bolt to 10 N.m (89 lb in).
Install the heater inlet/outlet pipe and bolt (1).
Tighten: Tighten the bolt to 10 N.m (89 lb in).
Install the thermal bypass hose and securely fasten the clamp (3).