OEM 2003 Cadillac Seville Radiator fan

2003 Cadillac Seville Radiator fan Parts and Q&A

• Q: How to replace the radiator fan on 2003 Cadillac Seville?

  A: The electric Radiator fan replacement process begins with disconnecting the battery negative cable before draining the cooling system. You should first disassemble the Fan Shroud by removing its air deflector and retaining bolt plus engine oil cooler pipe along with the retainer. Then drop the vehicle to the ground. The Radiator service requires the upper and lower engine oil pipes to disconnect while setting them aside. Then remove the hood latch support and headlamps before disconnecting both pipe types. The hose clamp remover/installer (J37097-A) helps with inlet Radiator Hose removal from the Radiator before placing the hose over the engine area. Free the Fan Shroud by taking away the air cleaner assembly together with the upper transaxle oil cooler pipe retaining bolt. Unscrew the upper transaxle oil cooler pipe plastic cap through the quick connect fitting and remove it from the Radiator using tool j41623-b cooler quick connect tool. Follow the procedure once again to disconnect the outlet Radiator Hose from the Radiator using the hose clamp remover/installer (J37097-A) and then remove its lower transaxle oil cooler pipe from the Radiator. First disconnect the Radiator bracket mounting bolts while simultaneously removing the mounting brackets as well. The procedure for taking off the Fan Shroud begins by lifting the Radiator/a/c condenser assembly from the lower Radiator support pads then tilting the top forward. Begin the procedure by disconnecting wires from the fan motors and then remove the brackets that link the harness to the Fan Shroud and disconnect the a/c charge hose retainer coupling. Unfasten the two mounting bolts of electric Radiator fans while being mindful of the lower attachment points. To remove the Radiator fan assembly route it first to the right position and then use upward force on the right aspect before shifting it left for final removal from the vehicle. Start by placing the Radiator fan assembly at the rear of the Radiator and move it left with a downward motion on right side until you correctly position the Fan Shroud lower feet at the Radiator mounting tabs. You must install the electric Radiator fan mounting bolts at 6 nm (53 inch lbs.) before attaching the retaining clip of the a/c discharge hose alongside the wiring harness electrical connectors to the Radiator fan motors. The Radiator mount brackets should be installed after positioning the assembly on the below Radiator support pads. Install the Radiator mounting bolts with torque at 9 nm and attach Fan Shroud wiring harness clips. Position the lower transaxle oil cooler pipe toward the upper direction before tightening it to 35 nm (26 ft. Lbs.). Use hose clamp remover/installer (J37097-A) to join the outlet Radiator Hose with the Radiator before pushing the upper transaxle oil cooler pipe into the quick connect fitting of the Radiator until a 'click' is heard. Then install the plastic cap over the joint. The top transaxle oil cooler pipe retention bolt must connect to the Fan Shroud and its tightening torque should be set to 6 nm (53 inch lbs.). Lastly, install the air cleaner assembly. Using the hose clamp remover/installer (J37097-A) conduct the Radiator Hose inlet connection to the Radiator followed by connecting both engine oil cooler pipes which should be tightened up to 18 nm (13 ft. Lbs.). To finish complete the installation you must first install the headlamps then install the hood latch support followed by vehicle raising and support before adding the engine oil cooler pipe retaining clip and bolt to the Fan Shroud where the retaining bolt will be tightened to 6 nm (53 inch lbs.) after which the air deflector and vehicle lowering occur next to complete filling the cooling system then connecting the battery negative cable with a final engine oil check.