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Old 01-30-2014   #1
raymond greene
 
Join Date: Jan 2014
Location: massachusetts
Posts: 18
Default shocks

I have a 1994 ZR1 and it really rides like a buckboard. No service light on the dash however. I cleaned off some of the grease on the front shock and they are Bilsteins. There is only 9800 miles on the car. (2 owner until I bought it) So I would guess they are originals. My question is; would not the system recognize the shocks are not working and activate the service light on the DIC? Is it possible the actuators are still good? Thanks, Ray
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Old 01-30-2014   #2
Z06scentair
 
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Location: Charlotte NC
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Default Re: shocks

Quote:
Originally Posted by raymond greene View Post
I have a 1994 ZR1 and it really rides like a buckboard. No service light on the dash however. I cleaned off some of the grease on the front shock and they are Bilsteins. There is only 9800 miles on the car. (2 owner until I bought it) So I would guess they are originals. My question is; would not the system recognize the shocks are not working and activate the service light on the DIC? Is it possible the actuators are still good? Thanks, Ray
What setting? Sport, Tour, or Perfomance?
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Old 01-30-2014   #3
1990 quasar blue
 
Join Date: Feb 2004
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Default Re: shocks

Buckboard?
I wonder if your tires are flat spotted.
Where in Ma?
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Old 01-30-2014   #4
raymond greene
 
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Default Re: shocks

In any setting. No light on the dash and it is set on Tour.

Where in Mass? I live in Essex.
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Old 01-30-2014   #5
raymond greene
 
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Default Re: shocks

Just put new tires on it this week.
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Old 01-30-2014   #6
We Gone
 
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Default Re: shocks

Try and pull the codes just to see if the bulb has not been pulled. If the shocks are just bad (oil has leaked out I don't think the system will tell you) although I don't think they could all be bad. It will tell you if the actuator times out as in a broken gear on top the shock or in the actuator.
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1990 Steel Blue/Black #2355
1990 Red/Red #1473
1991 Quasar /Black #118 Sold
1991 Turquoise/Black #766 Parted Out
1993 Yellow/White #179 Sold
1990 Black/Gray #1361 Headers/4:10s Sold

Last edited by We Gone; 01-30-2014 at 05:52 PM.
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Old 01-30-2014   #7
raymond greene
 
Join Date: Jan 2014
Location: massachusetts
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Default Re: shocks

Thanks. My wrench is on vacation. I will add that to the list of things that need fixing. Hard to get the feel of a car you just bought living here in a Northeast winter. Lucky to find a dry day to drive and get the new tires put on. Nitto's N555. That's about all that was out there. Good price, $910 installed. Bob Fahey tire in Wakefield MA. Did a great job and very professional. I will change out all the fluids, oil and filter, everything I see on Marc Haibeck's maintenance page.
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Old 01-30-2014   #8
Z06scentair
 
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Default Re: shocks

Quote:
Originally Posted by raymond greene View Post
In any setting. No light on the dash and it is set on Tour.

Where in Mass? I live in Essex.
Did you change to other settings while driving? If you did could you tell the difference in stiffness when selecting another mode?

If you can feel a difference then there is most likely nothing wrong with the shocks.

Have you ever experienced the ride of C4 Corvette before, or could you possibly be comparing this to a newer C5 or C6?

Asking alot of questions gets me to the Root Cause.
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Old 01-30-2014   #9
batchman
 
Join Date: Jun 2009
Location: I live at Devens, one run at a time
Posts: 455
Default Re: shocks

Buckboard? Does that mean too stiff or is it bouncy? One end, the other, or both (you may need to home in on that)?

At that mileage (lack of use) if too stiff the shocks may be frozen up. Jack car up to see if wheels droop correctly. Any sign of rust on the shock shafts?

If bouncy they may have lost their pressure. Any sign of oil leaks on the bodies or shafts?

Either case adjuster may work fine meaning you get no code but shocks themselves are toast.

I don't get to Cape Ann much but if you find yourself near to/west of Lowell drop me a PM.
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[I]91 ZR-1 #1840, autocrossing in SCCA BSP. FIC S/S's
DRM chip/Watson/Borla/lid/LW batt&headlights,
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camber brace, 32/22mm sways, A/C halfway deleted
17x11 & 12 CCW's, 315 & 335 Hoosier A6s

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Old 01-30-2014   #10
We Gone
 
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Default Re: shocks

Got thinking about it. There are two other ways to check the system.
1. The Service Ride Control should light briefly when you start the car.
2 . If you turn the ignition from off or lock to run 3 times without moving the car it will come on, but go out after you move.
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1990 Steel Blue/Black #2355
1990 Red/Red #1473
1991 Quasar /Black #118 Sold
1991 Turquoise/Black #766 Parted Out
1993 Yellow/White #179 Sold
1990 Black/Gray #1361 Headers/4:10s Sold
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