Is it possible to change the pitman arm without removing the power steering pump? I have a manual that says you just need a two-arm puller but i am having trouble making this work. the vehicle is 2wd. any help would be appreciated?
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Re: how to change pitman arm on a 1999 chevy suburban
You don't have to remove the steering box to do a pitman arm. Take off the one 1/4 in. nut, or whatever size it is, take the nut off the center link, put a pitman arm puller on the steering box side, and tighten the puller until you can't go any further, and hit the adjuster w/ a hammer hard, then tighten some more and repeat
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Hi Chris, the concept of power steering in cars and trucks should read POWER ASSISTED, this means if your power steering fails, you can still steer the vehicle unlike some machinery and tractors that have full power steering which the steering wheel will just spin when the engine is turned off with no connection to your wheels, If your steering wheel does not turn it is a mechanical problem, steering arm jammed pitman arm in the wrong position or something like that. remove the pitman arm off the steering box and see if it will turn. you did mean that it won't turn at all and not turn easily like power steering should
set the front wheels in straight ahead position by driving vechicle a short distance on a flat surface. raise and support the vechicle safely on jack stands.place a drain pan below the steering gear. disconnect negative battery cable.disconnect fluid lines.cap the openings.mark the relationship of the pitman arm to the pitman shaft.remove pitman shaft nut and then remove the pitman arm from the pitman shaft using puller J - 6632. remove the steering gear to frame bolts and remove the gear assembly. TO INSTALL align the flat of the flexible coupling with the flat on the shaft push the coupling onto the shaft until the wormshaft bottoms against the end of the shaft.install the pinch bolt. make sure the bolt passes through the shaft undercut. tighten the pinch bolt to 75 ft lbs. place the steering gear into position guiding the coupling bolts into the proper holes in the shaft flange. install the steering gear to frame bolts and torque to 66 ft lbs.install the coupling flange nuts and washers. make sure the coupling alignment pins are centered in the flange slots. tighten the nuts to 20 ft lbs. maintain a coupling to flang dimension of 0.250 - 0.375 inches. install the pitman arm.install the hoses. you are done except bleeding power steering system. BLEEDING POWER STEERING. fill the the power steering pump reservoir to the proper level and let the fluid remain undisturbed for at least 2 minutes. start the engine and run it for only about 2 seconds.add fluid as necessary. keep doing this procedure until fluid level stop dropping. then raise the front of vechicle so the front wheels are off the ground.set the parking brake and block both rear wheels front and rear. manual transmission should be in neutral. automatic transmission should be in park. start the engine and run it at approximately 1500 rpm. turn the wheels off the ground to the right and left lightly, contacting the stops.add fluid as necessary. lower the vechicle and turn the wheels right and left on the ground.check the level and refill as necessary. if the fluid is extremely foamy, let the vechicle stand for a few minutes.with the engine off and repeat the procedure. if fluid looks foamy. once all done.dont drive vechicle on highway until normal steering is obtain.
remove the p/s lines to the gear box, take the nut of the pitman arm and seperate the center link of the pitman arm, remove the front shield, remove three bolts from the side of the frame holding the gear box onto the frame, you will need a puller to remove the pitman arm off the gearbox, reverse procedure to install. add fluid.
You will need the proper tools to remove them which can be rented at auto parts stores. The pitman arm has to pulled off with an pitman arm puller also have to drop steering box I believe to change it. I know we did on my 1996 Tahoe the idler arm can be seperated with a front end fork also available at parts store. You just drive it between the idler arm and tie rod after removing castle nut and cotter pen.
Pitman arm requires a pitman arm puller, and a tie rod seperator or "pickle fork". Remove the cotter pin on from the joint on the pitman arm and center link, then remove the nuts from both ends of pitman arm. Use the pitman arm puller to remove the pitman arm from the steering gear, then use the tie rod seperator to remove the end from the center link. Reinstall and retighten nuts, do not leave out the cotter pin.
Idler arm will require tie rod seperator. Remove the cotter pin from the end at the center link, use the tie rod seperator to seperate the joint there. Unbolt the idler arm from the frame, and remove. On reinstalling remember to install a new cotter pin. It would be best to have the front end alignment checked after replacing these parts.
You'll need to disconnect that line from the pump, (some metric wrenches will be needed) and disconnect the line at the steering gear box. It may help removing the A/C compressor and the power steering pump and bracket from the motor to get to the line where it attaches to the pump.
Take the bolts out that attach the steering box to the frame and pivot the box so you can fit the puller on. Leave the steering shaft and power steering hoses attached. Mark the new pitman arm and old one in the same place and mark the pitman shaft to keep the same position of the new pit man arm on the old shaft as the old pitman arm.
You'll have to weld a piece of flat iron with mounting holes pre-drilled, on to the frame, or if the frame where it broke isn't too bad, maybe just pound it flat, and weld the cracks and grind them . Then be sure to put some large washers on it, and lock washers. Somebody must have had that off at one time, and didn't tighten the bolts enough.