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DIY: Replacing A Steering Rack
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Replacing a power steering rack can be a difficult and challanging job. But if you are up the the challange, you can do it yourself and save hundreds of dollars.
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- If the new rack has new tie rod ends, measure the overall length of the old rack and tie rod assembly. Set the overall length of the new assembly to this same dimension by twisting the tie rod ends on their threads. Keep the rack centered and split the overlap difference between the left and right rod ends as you do this, or the steering wheel will be off-center when you're done.
- If you are reusing the old tie rod ends, crack the lock nuts loose. Count how many full turns it takes to remove the tie rod ends. Center the new rack and install tie rod ends the same number of turns on the new rack. Again, check overall length and split the difference.
- Install the new rack using the same words you used to get it out.
- Reconnect the power steering lines, using new "O" rings, if required. Usually the high-pressure line uses a slightly larger "O" ring so be careful not to mix them up.
- Reconnect the Steering Shaft Coupler assembly and bolt the rack back into place.
- Reattach the tie rod ends to the steering knuckles. Use new cotter pins for the castellated nuts; never reuse the old cotter pins.
- Put the wheels back on and torque the lug nuts to specifications.
- Remove the return line from the power steering pump and place the end into a bucket.
- Fill the power steering pump and start the engine until clean fluid comes out of the return hose. You may be able to install an inline filter in the return line to protect the new rack. I have known guys who have used fuel filters for this purpose.
- Have the front end aligned to reset the toe-in adjustment to specification or the vehicle will handle poorly and wear out the tire quickly.
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Bleeding The System
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Additional information provided courtesy of ALLDATA
© 2003 Vincent T. Ciulla
