How to Replace the Power Steering Belt on a 1985 Buick Century

The 1985 Buick Century uses a serpentine belt system to drive all the accessories on the engine, including the power steering pump. The advantage of a serpentine belt is that removing and replacing such a belt requires very little time or effort. The belt is smooth on one side and ribbed on the other, and close attention to the belt path is required when installing the new belt or damage can occur to the belt, the accessories and the engine itself.

Tools Used: Wrench set, Socket set, Breaker bar

Replace Power Steering Belt

Open the hood of your Buick and locate the negative battery cable end on the battery. Remove the retaining bolt from the cable end with a wrench, then remove the cable from the battery terminal.

Locate the serpentine belt tensioner on the front of the engine, then place a socket and breaker bar on the axis bolt in the center of the tensioner pulley. Rotate the tensioner counterclockwise to release the tension on the belt, then remove the belt from the pulleys. Discard the belt and rotate the tensioner clockwise, allowing it to rest in the home position.

Install the new belt over all the pulleys except the tensioner pulley, ensuring that it follows the proper route. If you are unclear on the path the belt should take, locate the diagram on the sticker under the hood for reference.

Rotate the tensioner counterclockwise and slide the belt over the tensioner pulley. Slowly rotate the tensioner back, tightening the belt. Remove the socket and breaker bar from the tensioner pulley bolt and remove them from the engine compartment.

Install the negative battery cable on the negative battery terminal and tighten the retaining bolt with a wrench. Close the hood.

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