GM 25924047
Reservoir

When replacing the coolant recovery reservoir (L27, LY7), the first move is best to reposition the Coolant Reservoir hose clamp aside that is located at the radiator overflow fitting and also disconnect the Coolant Reservoir hose from the fitting. Disconnect the Coolant Reservoir hose retainer from the electrical harness and remove the lower retainer and shock tower studs nuts then remove the lower retainer from the shock tower studs and take out the lower retainer with the shock tower studs. Drain the coolant from recovery reservoir into a clean container. For installation, install the coolant recovery reservoir back on the studs and lower retainer to the shock tower, then install nuts on the studs and tighten them to 3.3 n.m (29 lb in). Surakanity reservoir hose by using clean water and fit it to the radiator overflow neck fitting at a right 90 degrees and make sure the hose end is flush with the radiator filler neck making sure the clamp is seated square between the neck and the flared end neck of the fitting. Reconnect the coaxial harness connector for the cooling fan module switch back onto the module, and connect the Coolant Reservoir hose to the radiator overflow fitting along with repositioning the Coolant Reservoir hose retained to the electrical harness before moving on the Coolant Reservoir hose clamp to the fitting. Finally, top up the coolant recovery reservoir up to the correct level.

In order to replace the coolant recovery reservoir, you will first have to move the Coolant Reservoir hose clamp to a place not obstructing the radiator overflow fitting and remove the Coolant Reservoir hose from the fitting. Remove the Coolant Reservoir hose support retainer from the electrical harness, and then take out the reservoir nuts from the shock tower studs along with the removal of the coolant recovery reservoir from the lower retainer and shock tower studs. Drain the recovery reservoir coolants into a clean container. For installation, you should mount the coolant recovery reservoir back onto the lower retainer and shock tower studs and install the nuts on the studs and tighten them to 3.3 nm (29 inch lbs.). Lubricate the reservoir hose with clean water and we will route it to the radiator overflow neck fitting, with the end of hose flush on the radiator filler neck and the clamp squarely between the neck and flared end of the fitting before we instal the the Coolant Reservoir hose to radiator overflow fitting. Connect the support retainer for the Coolant Reservoir hose to the electrical harness, align the Coolant Reservoir hose clamp to the radiator overflow fitting, and fill the position of the coolant recovery reservoir to the correct level.

To replace the coolant recovery reservoir (RPOs LZE, LZ4, LZ8), first position the reservoir hose clamp and remove reservoir hose from radiator overflow neck. Then unbolt the nuts off the shock tower studs from the coolant recovery reservoir, and then draw out the coolant recovery reservoir from the retainer and shock tower studs. Drain the coolant from recovery rezervoir to a clean container. Install the coolant recovery reservoir onto the lower retainer and shock tower studs, then install the coolant recovery reservoir nuts to the shock tower studs, tighten them to 3.3 m n (29 lb in). Apply clean water lubricant on the reservoir hose and then direct it to the radiator overflow neck fitting and then fix the Coolant Reservoir hose to the overflow neck fitting. Connect the reservoir hose and clamp with the clamp tabs facing the 11 o'clock position around the radiator overflow fitting, on the radiator filler neck, it should ensure that the hose end is flush against the radiator filler neck, and the clamp is seated squarely between the radiator filler neck and the flared end of the fitting. And finally top off the coolant recovery reservoir to the appropriate level.

Disconnect the coolant reservoir hose support retainer from the electrical harness, then remove the coolant reservoir nuts from the shock tower studs.

Disconnect the coolant reservoir hose support retainer from the electrical harness, then remove the coolant reservoir nuts from the shock tower studs and take out the coolant recovery reservoir from the lower retainer and shock tower studs.

Reposition the reservoir hose clamp and remove the reservoir hose from the radiator overflow neck.

Secure the coolant recovery reservoir nuts to the shock tower studs, tightening them to 3.3 Nm (29 lb in).

Remove the coolant recovery reservoir nuts from the shock tower studs and take out the reservoir from the lower retainer and shock tower studs.

Place the coolant recovery reservoir onto the lower retainer and shock tower studs.