INVESTIGATION: Campaign Number: UnKnown
Details: INVESTIGATION REGARDING ERRATIC POWER STEERING ASSIST WHILE DRIV
Open Date: 99/05/19
Close Date: 01/02/20
MCS Check Date: 12/29/2003
The above was found on www.mycarstats.com for a 99 Yukon It doesn't say
which model years are under investigation.
Hmmmmm. If a PS pump is low on fluid (REALLY low) going around tight bends
can have the pump sucking air and you'd feel excessive resistance (complete
loss of power steering) until you straightened out. But, you have zero
1/16" is nowehere near enough to cause an "icy sensation/"
What kind of shape are the front shocks in?
Can you do it again, but this time pre-position the steering wheel
to the position where it feels 'icy'? Or did you already do it
that way? If there is a bad-spot you'd need to match up with
it to see the associated movement, and it may take more force than
you can easily apply.
Also, you might try unlocking the steering and manually steering it
via the wheels. If you feel a loose spot in the process...
Bill S wrote:
The fluid is full,and I`ve done it with the steering locked,and
unlocked. All the front-end parts seem very tight.
I have have to get this fixed ASAP,cuz I will be pulling me race car
1/4 Mile Junkies
It's most likely the EVO sensor, pretty common problem
on these trucks in that year. The EVO sensor sits at the
base of the steering column inside the passenger compartment.
It's not that big of job to replace it.
Here's a bit of the bulletin that pertains to the problem:
REDUCED STEERING EFFORT (DIAGNOSE/REPLACE STEERING #86-32-06 - (09/23/1998)
SUBJECT: REDUCED STEERING EFFORT (DIAGNOSE/REPLACE STEERING WHEEL SPEED
SENSOR AND BEARING ASSEMBLY)
MODELS: 1997-98 CHEVROLET AND GMC C/K, M/L AND G-VAN WITH EVO (ELECTRONIC
SOME OWNERS MAY COMMENT ABOUT REDUCED STEERING EFFORT WHILE DRIVING. THIS
REDUCED STEERING EFFORT MAY CHANGE BACK TO THE ORIGINAL EFFORT
INTERMITTENTLY DURING DRIVING OR REMAIN UNTIL THE NEXT KEY OFF-ON CYCLE.
THESE SLIGHT CHANGES IN STEERING EFFORT DO NOT AFFECT THE CONTROL OF THE
VEHICLE, BUT MAY ALERT THE DRIVER THAT THE SYSTEM IS NOT OPERATING AS
right to say it was the EVO sensor
I had the dealer replace it because I was afraid I might activate the air
Anyway I had replaced inner tie rod ends and had two allignments trying to
fix the problem before I took Ian's
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