GM Service Manual Online
For 1990-2009 cars only

Cross-Flow Radiator Core and Outlet and Inlet Tanks


Object Number: 11677  Size: SH

A cross-flow radiator core is used on all models. Outlet and inlet tanks are to the right and left of the cross-flow radiator core. All radiator used with automatic transmissions have transmission oil coolers and inlet and outlet fittings for transmission fluid circulation. Vehicles with manual transmissions use radiators without transmission oil coolers.

Identify an aluminum-plastic radiator by a note on the outlet tank, 127 mm (5 in) below the filler neck, which reads:Important -- for repair see Harrison Service Manual. This manual and the service manual describes the service procedures for the aluminum-plastic radiator.

Transmission Oil Cooler

The transmission oil cooler, if equipped, is in the outlet tank on the right side of the radiator. For service information on the transmission oil cooler, refer to Section 7.

Radiator Drain Cock

The radiator drain cock is on the bottom, left side of the radiator end tank. The drain cock includes the drain cock and the drain cock seal. Use the drain cock when you drain the coolant.

Radiator Air Baffles

Radiator air baffles are at the top and the bottom of the radiator in order to increase air flow through the radiator.