Q: How to remove and install the cooling fan on a Cadillac ElDorado and Fleetwood?
A: For 4.5L and 4.9L engines on DeVille and Fleetwood,Disconnect the negative battery cable. Raise the vehicle and detach fan electrical connectors. Remove relevant components, like the air conditioning accumulator (for right fan) and the air cleaner intake duct for access. Remove the radiator fan assemblies. Installation is the reverse of removal.For front fan on Eldorado and Seville: Disconnect the negative battery cable, remove the radiator panel, detach the fan electrical connector, and take out the radiator fan by removing its retaining bolts. To install, reverse the process.For rear fan on Eldorado and Seville: Disconnect the battery, detach the fan connector, and remove the radiator fan-retaining bolts and other related components. To reinstall, reverse these steps.For 4.6L engines: Disconnect the battery, remove the beauty panel and engine torque support strut, detach the fan connector, and remove the radiator fan. To reinstall, follow the reverse process.To test the radiator fan motor: Check the fuse or circuit breaker. Disconnect the radiator fan motor, use a jumper wire to apply battery voltage, and check for continuity with an ohmmeter. Ensure proper ground circuit continuity. Only perform continuity checks on motor windings to avoid PCM damage.