How to Take Off the Pulley From a 1994 GMC Jimmy Power Steering Pump

The 1994, the GMC Jimmy was offered standard with a 4.3-liter six-cylinder engine and a five-speed manual transmission. Even though there was an option for an automatic transmission, there were no alternate engines offered -- so removing the power steering pulley is the same process for all trim levels of the 1994 Jimmy. The power steering pulley is pressed onto the power steering pump shaft and has to be removed if the power steering pump is replaced.

Instructions

Removal

1

Park the vehicle on a level surface. Lift the vehicle hood and support it with the hood prop rod. Draw out a sketch of the current belt routing with pen and paper.

2

Install the proper-sized socket onto the1/2-inch breaker bar and place the breaker bar over the center bolt on the belt tensioner pulley. Rotate the tensioner counterclockwise with the breaker bar, then remove the belt from around the tensioner pulley. Slowly release the pulley so it rests in its natural position. Remove the belt from the engine.

3

Remove the pilot bolt from the pulley remover tool. Place the pulley remover tool cup over the center hat on the power steering pulley so the lip of the cup sits into the grove on the pulley hat. Install the pilot bolt into the cup. Rotate the pilot bolt until it bottoms out on the pump shaft and the tool can support itself on the pulley. Rotate the pilot bolt clockwise, and it will slowly pull the pulley up the pump drive shaft. When the pulley breaks loose, loosen the pilot bolt and remove the pulley removal tool. Remove the pulley from the power steering pump.

Installation

4

Set the power steering pulley onto the power steering pump shaft. Thread the drive nut onto the pilot bolt for the pulley installer tool. Set the tool cup over the power steering pulley and thread the pilot bolt into the cup until it makes contact with the power steering pump shaft.

5

Rotate the drive nut clockwise with a wrench while holding the pilot bolt with the socket and ratchet. As the nut is tightened, it gradually presses the pulley onto the pump shaft. When the nut no longer tightens, the pulley is properly seated. Back off the nut and rotate the pilot bolt counterclockwise to remove it. Remove the tool cup from the power steering pulley.

6

Inspect the serpentine belt for cracks, fraying around the edges or glazing and replace as necessary.

7

Route the serpentine belt around the crankshaft pulley and other engine accessories as recorded on the sketch previously made. Once the belt has been routed around all pulleys, hold tension on the belt at the belt tensioner. Rotate the belt tensioner counterclockwise with the breaker bar and socket. Slide the belt around the tensioner pulley and slowly release the tensioner.