Hyundai Repair: Power steering pump noise, 2003 hyundai elantra, hyundai elantra

Question
Timing belt replacement July 17,2006
Bleeding system-both front wheels jacked up and off the floor,pulled both primary coil wires off and running starter only, kept turning wheels full stroke left and right.Put coil wires back on,started vehicle at idle and turn wheels full stroke left and right and careful not to hold full
stroke for too long.
Fluid level is full
Noise is a loud squeal
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Followup To

Question -
2003 Hyundai Elantra 2.0 DOHC 4 cylinder engine
After a timing belt replacement job and bleeding air
from system several times,thereis still pump noise
with power steering.Fluid shows no signs of air.I am
using the Hyundai SP111 transmission fluid in the
system.Should I be using power steering fluid instead?After the car sets for a while and is started up is when the noise occurs.If the car runs
for 30 seconds the noise disappears and everything is fine.Upon initial start-up after setting awhile
the car is hard steering.When warmed up it is fine.

Answer -
Hi, Clyde.  I've got a few additional questions for you.

1.  How long has it been since the timing belt was replaced?
2.  How did you bleed the air from the system?
3.  Is the fluid level at the full mark?  (I presume it is.)
4.  What does the noise sound like: hum, squeal, etc?


The specified fluid for the power steering system is Dexron, but SPIII should work fine.  I've not once seen the Hyundai ATF cause a noise or performance issue with the steering.

Answer
The pump doesn't typically make a squealing noise.  I'd suspect that one of the drive belts is slipping.  Check especially the alternator belt-- it drives the water pump which in turn drives the power steering pump.  The alternator belt needs to be rather tight to not slip.  The belt slipping would also be consistent with the time of occurrence (cold starts) and the loss of assist.  Adjust the alternator belt until there's almost no deflection when you press on it.  The power steering belt should be tensioned more like v-belts on most other cars, a small amount of deflection for light pressure on the belt.

Also, the next time you bleed the system, you probably don't need to go to the trouble you've gone through in this instance.  Usually, refilling the system, running the wheels lock to lock a few times with the engine running, and a short test drive does a fine job of bleeding any Hyundai power steering system.  (Just don't expect it to work as well for Ford or GM or other vehicles).