FAQs
1.Why is the pump making a whining noise all of the time?
A whining pump is usually caused by air in the power steering system. Inspect the reservoir for proper fluid level. If fluid has foam or air bubbles present, air has entered the system or has not been properly bled (ensure all hoses/clamps are tight). Some systems require special vacuum bleeding procedures.
2.Should I ever change my fluid, even though nothing is wrong?
Yes. Some O.E. manufacturers recommend that power steering fluid be changed at 50,000 miles and continue at that interval. Just like engine oil, power steering fluid will eventually break down and carry suspended contaminants from component wear and breakdown. Follow your vehicles O.E. manufacturers recommendations on fluid change intervals.
3.I bought a replacement power steering pump and my original pulley has a loose fit on the replacement pump shaft. What should I do?
The pulley may have cracked upon removal. If the shaft was mushroomed before removing the pulley, it has now enlarged the bore in the pulley. The pulley must be replaced.