Moan/Fog Horn Sound May Be Heard While Turning at Slow Speed on Dodge Caravan

Problem Description and Possible Solution

A moaning or fog horn sound may be heard while turning at a slow speed. Installing a finned power steering cooler will help alleviate the problem, but it may be necessary to replace the power steering rack.

Problem Data
RepairPal Verified
Average mileage: 121,728 (74,500–148,000)
5 model years affected: 2001, 2002, 2003, 2004, more2005
13 people reported this problem
Viewing 1 - 5 of 5 comments
When turning at low speeds or standing still, turning the wheel produces a low tone and vibration.
Low speed and parking MOAN from Power Steering Pump. Drained ATF+4 fluid and removed and cleaned Power Steering RESIVOR...Screen at bottom gets clogged and restricts flow to pump at low engine RPM, Replaced fluid-USE ATF+4 fluid and bleed by cycling the steering lock to lock a few times,check fluid level,noise GONE!
This problem I have never replaced the rack, but extended the inlet line to the cooler to about 18", the correct specification for this repair can be obtained through Chrysler. The vibration causing the noise is still there but dampened by the extra length of power steering line, a rack is only a temporary cure.
Loud noise when the car came to a complete stop after it was on cruise control. Tolk me it was the power steering pump, which cost $856, but is now making a noise when I turn the wheel. May have to replace the rack and pinion.
Power steering pump fog horn sound when cold