Selective Ride Control
Thread Starter
Heel & Toe
Joined: Mar 2003
Posts: 23
Likes: 0
From: New Port Richey Florida
Selective Ride Control
Anyone out there have any expertise with Selective Ride Control or can anyone point me to someone who does?
Specifically my question is how do you "index" the shock adjustment shaft so that the computer knows what position the shock is in.
I have the factory manuals and it says to replace the shock and re-install the actuator. No mention of shaft position.
Bruce '94 Black Rose Z07
Specifically my question is how do you "index" the shock adjustment shaft so that the computer knows what position the shock is in.
I have the factory manuals and it says to replace the shock and re-install the actuator. No mention of shaft position.
Bruce '94 Black Rose Z07
Team Owner
Joined: Dec 1999
Posts: 34,873
Likes: 487
From: Lacey WA RVN 68-69
NCM Sinkhole Donor
The shaft only turns part way as their are built-in stops on the base of the small gear at the top of the shock shaft. The actuator will move the shock shaft to the position required acording to where the selector switch is set. This is done as part of the self-test the system goes thru each time the ignition is set to "Run".
If the engine is started three times without the car moving, a code 23 is set. The SRC system also uses vehicle speed to make shock setting adjustments so if there is no signal indicating vehicle speed, the system assumes there is a problem.
If the engine is started three times without the car moving, a code 23 is set. The SRC system also uses vehicle speed to make shock setting adjustments so if there is no signal indicating vehicle speed, the system assumes there is a problem.
Le Mans Master
Joined: Jan 2004
Posts: 7,276
Likes: 3
From: Why are there squished peanut butter cups in my underware?
Every time the key is turned on, the SRC will reset itself.
For the early versions (`89-`91) the actuators will rotate to the far open position of 180* then back to the starting position of 60* at startup.
So if the actuator is removed from the shock, it does not matter what position the gear is in the shock, because it will reset itself anyway.
Thread Starter
Heel & Toe
Joined: Mar 2003
Posts: 23
Likes: 0
From: New Port Richey Florida
Called Bilstein today, The problem is my shock does not have a stop, the shaft can rotated without ever reaching a stop. Bilstein says they will rebuild it for $145.00?? Any thoughts? I know new ones can be had for +/- $180.00
Thread Starter
Heel & Toe
Joined: Mar 2003
Posts: 23
Likes: 0
From: New Port Richey Florida
Called Bilstein today, The problem is my shock does not have a stop, the shaft can rotated without ever reaching a stop. Bilstein says they will rebuild it for $145.00?? Any thoughts? I know new ones can be had for +/- $180.00
Bruce
Bruce
Safety Car
Joined: Oct 2000
Posts: 4,226
Likes: 347
From: Albuquerque, NM
I thought the cost to rebuild was about $60. $140 sounds high, but it may have gone up. If these are original shocks, I guess you just have to pay up. On the other hand, if they were replaced or rebuilt I believe they should have a lifetime warranty. Whatever you do, rebuild or replace them in pairs; i.e., do both fronts or both rears.
Le Mans Master
Joined: Jan 2004
Posts: 7,276
Likes: 3
From: Why are there squished peanut butter cups in my underware?
Originally Posted by BruceZ07
Bilstein says they will rebuild it for $145.00??
Thread Starter
Heel & Toe
Joined: Mar 2003
Posts: 23
Likes: 0
From: New Port Richey Florida
I have learned from both the posts and from taking another look at my shocks that the stops are part of the gear that is mounted on the adjustment shaft with a coil pin. This gear looks like it is made out "pot" metal and apparently got tired of being driven against the stop each time the ignition was turned on.
I called Bilstein and am trying to get them to send me the gears and coil pins (so far they are resisting).
Bruce
I called Bilstein and am trying to get them to send me the gears and coil pins (so far they are resisting).
Bruce
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Racer
Joined: Jul 2001
Posts: 322
Likes: 1
From: Los Gatos, CA
rebuilding is good
Depending on how you use the car, rebuilding can be an opportunity to revalve as well. The revalved FX-3 shocks work well for track use when combined with a new prom box. You can have a setting for street driving and two choices for the track. And the new prom settings can work a lot better than stock.
Team Owner
Joined: Dec 1999
Posts: 34,873
Likes: 487
From: Lacey WA RVN 68-69
NCM Sinkhole Donor
The gear itself is not available from Bilstein. They are resisting because if they began to send the small gears out, they could lose their FX3 shock rebuilding business. BTW, the gear is not a GM part either.
I wonder if Bilstein is automatically replacing all of the coponents? The shock rod is not normally replaced in a general rebuild unless it was damaged in some fashion. When I sent in a front shock last March, I was charged $100 for a new gear, a "rod guide assembly", a new piston and band, new gas charge, and a new rod nut.
I wonder if Bilstein is automatically replacing all of the coponents? The shock rod is not normally replaced in a general rebuild unless it was damaged in some fashion. When I sent in a front shock last March, I was charged $100 for a new gear, a "rod guide assembly", a new piston and band, new gas charge, and a new rod nut.
