Question 1

How to Replace Radiator fan and Fan Motor on Cadillac CTS?

Accepted Answer

The replacement process starts with air deflector removal along with disconnecting the auxiliary Radiator fan electrical connector. The transmission cooler quick disconnect tool (J 44827) should be used to separate auxiliary transmission lines without harming either Radiator or transmission or Transmission Oil Cooler. Start by placing auxiliary cooler lines aside and the auxiliary Radiator fan assembly bolts (1, 2) out of the way before removing the lower left auxiliary Radiator fan bolt, the auxiliary Radiator fan assembly bolt and the upper left auxiliary Radiator fan bolt to remove the assembly from the vehicle. You should reinstall the auxiliary fan assembly into the vehicle followed by tightening the lower bolts (1, 2) to 6.5 nm (58 inch lbs.). Attend to the installation of the fan assembly bolt at the specified torque level. After that apply 6.5 nm (58 inch lbs.) to the other auxiliary Radiator fan bolts. Insert the auxiliary transaxle oil cooler line into its place until it secures properly then test its stability by a gentle pull on the line. Install the auxiliary Radiator fan electrical connector before placing back the air deflector. Check the transmission fluid level as the last step of the inspection.

Question 2

How to replace the radiator fan on Cadillac DeVille?

Accepted Answer

Begin the electric cooling fan replacement by discharging the battery negative cable followed by eliminating the upper Radiator support. Empty the cooling system then strip off the air deflector from the vehicle. Start by taking off the engine oil cooler pipe retaining clip and bolt from the Fan Shroud before lowering the vehicle. Apply the hose clamp remover/installer (J 37097-A) model to detach the inlet Radiator Hose from the Radiator housing. The upper engine oil cooler pipe needs removal from the Radiator before taking out the upper transaxle oil cooler pipe retaining bolt from the Fan Shroud. Use the cooler quick connect tool (J 41623-A) to remove the upper transaxle oil cooler pipe from the Radiator while detached from the plastic cap on its quick connect fitting. First disconnect the harness electrical connections of the Radiator fan motors before removing the clips that affix the harness to the Fan Shroud. The two retainers connecting the a/c discharge hose need removal before the two electric Radiator fan mounting bolts get extracted. Position the Radiator fan assembly to the left side of the vehicle before lifting at the right side until it removes completely in a rightward direction. Position the Radiator fan assembly behind the Radiator and move it towards the right side before pressing downward on the right side until the lower feet of the Fan Shroud match the Radiator mounting tabs. The electric Radiator fan mounting bolts need installation followed by tightening to 6 nm (53 inch lbs.). Insert the connectors of both retainer devices into the outer end of the A/C Hose and reattach all wiring harness plugs to the motors before installing Fan Shroud clips. Insert the upper transaxle oil cooler pipe into the Radiator quick connect fitting while pushing until it clicks before gently checking retention and placing the plastic cap on the connector. Screw the upper transaxle oil cooler pipe retaining bolt into the Fan Shroud position with 6 nm (53 inch lbs.) torque specification. Connect the upper pipe supplying engine oil coolant to the Radiator by tightening its fitting to 18 nm torque. The hose clamp remover/installer (J 37097-A) should be used to attach the inlet Radiator Hose to the Radiator before lifting and supporting the vehicle. Put in the engine oil cooler pipe retaining clip along with bolt to Fan Shroud and fasten the bolt at 6 nm (53 inch lbs.). Put back the air deflector together with lowering the vehicle to install the upper Radiator support. To complete this procedure fill the cooling system then reconnect the battery negative cable and verify engine oil level.

Question 3

How to replace the radiator fan and fan shroud without PWM on Cadillac XLR?

Accepted Answer

Before working on the Radiator fan replacement without pwm, you must maintain safe practices by avoiding contact with the electric fan area due to start-up hazard. Fan blades and housings that show any bending or damage or cracking must be replaced right away to safeguard against accidents and automobile damage. The first step involves placing the ignition and start switch to off or lock while disconnecting the negative battery cable if tools are expected to touch active electrical terminals. The first step requires uninstalling the Radiator support and following it by unconnecting the engine wiring harness at the Radiator fan shroud and the surge tank outlet hose from its clips. Initiate the repair by supporting the vehicle then extracting the stabilizer shaft and eliminating power supply to the Radiator fan through its electrical connector. Usage of the following steps allows disconnection of the lower transmission oil cooler line from the Radiator along with lifting the Radiator fan and shroud to remove retaining tabs from the Radiator before removing the complete assembly. Start with Radiator fan and shroud that should rest correctly on the Radiator before installing Radiator fan and shroud followed by lower transmission oil cooler line and Radiator fan electrical connector. First lower the vehicle down then install the stabilizer shaft before you attach the surge tank outlet hose to retaining clips on the Radiator fan shroud and complete the installation of the engine wiring harness and Radiator support.

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