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Username Post: Question - steering sensor        (Topic#365998)
Kazz 
Senior Member
Posts: 296

Loc: Montana
Reg: 05-03-03
08-03-21 07:28 PM - Post#2824422    

Hello, what does the steering position sensor towards the bottom of the column do? I'm having steering issues on my 98 truck and it was suggested to try changing this sensor.

Thanks

07 Chevy Avalanche
06 Buick Lucerne
04 Chevy Tahoe
98 Chevy Z71 Ext Cab 4x4


Money can't buy you love
But it sure can buy you a really good time!


 
someotherguy 
Senior Moderator
Posts: 29472
someotherguy
Loc: Texas
Reg: 08-01-03
08-04-21 05:29 AM - Post#2824437    
    In response to Kazz

It's part of the EVO system that began in 1997. EVO stands for electronically variable orifice; this is the speed-sensitive steering that (when working correctly) gives you a lighter steering feel (more assist) at low speeds for parking maneuvers, but is supposed to firm back up to normal during regular driving.

What kind of problem are you having? Generally what people complain of when that sensor is bad, is the steering is too sensitive, or over-active, at highway speeds.

(I edited your post title to include "steering sensor" so that others knowledgeable on the subject might see it and offer advice.)

Richard

06 Silverado ISS / 06 Silverado SS / 06 300C SRT8


 
Kazz 
Senior Member
Posts: 296

Loc: Montana
Reg: 05-03-03
08-04-21 06:00 PM - Post#2824512    
    In response to someotherguy

Thank you for adding that to the subject line.

It's kind of all over the place but the main issue is you turn the wheel and it will dart in the direction you're turning. Kind of tough to explain. It's on it's third steering box, second power steering pump, replaced ball joints, control arm bushings and I believe the idler arm. It needed these items replaced anyways but didn't help the main issue. Your explanation makes some sense as the steering pressure is kind of erratic. It will get replaced the beginning of Sept along with the fuel pump. I'll update what happens.

Thank you for the explanation.

07 Chevy Avalanche
06 Buick Lucerne
04 Chevy Tahoe
98 Chevy Z71 Ext Cab 4x4


Money can't buy you love
But it sure can buy you a really good time!


 
someotherguy 
Senior Moderator
Posts: 29472
someotherguy
Loc: Texas
Reg: 08-01-03
08-04-21 06:19 PM - Post#2824514    
    In response to Kazz

That does indeed sound like a failed steering sensor. I'm not aware of a test procedure; everyone just shotguns it - maybe someone else with knowledge can chime in.

Richard

06 Silverado ISS / 06 Silverado SS / 06 300C SRT8


 
thx1138v2 
Contributor
Posts: 242

Reg: 05-01-14
08-05-21 08:25 AM - Post#2824545    
    In response to Kazz

We had one go bad on an'06 Silverado but it was a bit different. Whenever parked it was really, really hard to turn the wheels when not moving and it didn't improve much when we were moving. After replacement it was easy to turn the wheels when at a standstill and barely moving but on the highway it was fine.



 
jbknight311 
"4th Year" Gold Supporting Member
Posts: 1071
jbknight311
Age: 63
Loc: Fort Worth, TX
Reg: 11-27-06
08-14-21 07:15 PM - Post#2825165    
    In response to thx1138v2

My 98 Silverado I changed it 3 times. 2 were Dorman and 3rd Delco. All lasted less than 5 months. Ended up just pulling the plug on the back of the power steering pump. A little harder at slow speeds and easy at freeway speeds.
Having them get a dead spot and having the steering wheel get a funky spot on the freeway where it was fine, then quick for about 10 degrees I considered unsafe. Figured "regular old style" consistent steering was just fine.

98 C1500 Silverado extended cab 5.7 auto 2wd Fort Worth, TX.


 
Kazz 
Senior Member
Posts: 296

Loc: Montana
Reg: 05-03-03
09-04-21 03:57 PM - Post#2826531    
    In response to jbknight311

Got my truck back Wed and it's much better. Took it on a short 10 mile jaunt yesterday and no darting when I make steering corrections. It still wanders a little but I can live with that. The steering gets tighter the hotter it gets so not sure what's up with that. It's not real bad but strange. What jbknight mentioned worries me but we'll see. Thank you for the responses.

Kazz

07 Chevy Avalanche
06 Buick Lucerne
04 Chevy Tahoe
98 Chevy Z71 Ext Cab 4x4


Money can't buy you love
But it sure can buy you a really good time!


 
Silverado Kid 
Newbie
Posts: 42

Age: 73
Loc: Jackson California
Reg: 07-26-16
09-05-21 05:52 AM - Post#2826556    
    In response to jbknight311

The wandering you mention may be the result of the steering rag joint. This is the connection from the steering column to the steering box. It wears out and you get slop in the steering and will cause wandering. Do you feel like there is slop in the steering? Can you turn the steering wheel an inch or two before the the wheels start to move? Pretty easy replacement part, might be worth doing if you haven't already done so.



 
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