2000 STS suspension replasement....
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Cadillac Seville / Cadillac Eldorado Forum Discussion, 2000 STS suspension replasement.... in Past Cadillac Vehicle Discussion; So I have a 2000 STS and I have bad leveling sensors on the front end. I was wondering if ...
  1. #1
    Dapp is offline Cadillac Owners Member
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    2000 STS suspension replasement....

    So I have a 2000 STS and I have bad leveling sensors on the front end. I was wondering if anyone knows were I could get some replacements cheap. I called the dealership and they had know idea what I was talking about. Are the called leveling sensors?? Also wanted to replace the front and rear suspension. Is there any good inexpensive aftermarket replacements for this car?? Thanx for the help....
    jrv7 and jrv7 like this.

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    Dapp is offline Cadillac Owners Member
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    Re: 2000 STS suspension replasement....

    Sorry for being lazy I'm sure if I looked through here enough I would find the answer to this question I just don't have the time right now... :-)

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    RippyPartsDept's Avatar
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    Re: 2000 STS suspension replasement....

    PM me your VIN ... i'll take a look an post up an illustration for you ... I think they're called 'position sensors'
    Chris Heath (RippyPartsDept) is an ASE Certified GM Parts Consultant at Rippy Automotive
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    JimD is offline Cadillac Owners Connoisseur
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    Re: 2000 STS suspension replasement....

    Quote Originally Posted by Dapp View Post
    ....I called the dealership and they had know idea what I was talking about. Are the called leveling sensors??
    Since I don't know what you are talking about, I have to guess that GM knows the parts as 'suspension position sensors'.
    ....Is there any good inexpensive aftermarket replacements for this car??
    "Good" and "inexpensive" are mutually exclusive terms in the suspension parts world.

    Tell us what "C" codes you can display.

  6. #5
    MoistCabbage's Avatar
    MoistCabbage is offline Cadillac Owners 10000+ Posts
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    Re: 2000 STS suspension replasement....

    My local dealer called them ride height sensors.

    By replacing the suspension I assume you mean the shocks and struts. Your STS has active suspension (CVRSS, continuously variable road sensing suspension). By replacing the struts with aftermarket parts, you will lose this functionality, and have a constant "SERVICS SUSPENSION SYSTEM" message on the dash (unless you trick the computer with resistors). Replacement Ac Delco shocks struts are extremely expensive, but using aftermarket parts, the car will never ride or handle as good as it did new. That being said, new aftermarket shocks/struts are better than worn OEM parts. There are MANY threads on this subject.

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    SwampeastMike is offline Cadillac Owners Enthusiast
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    Re: 2000 STS suspension replasement....

    They're often called "suspension position sensors" or "suspension height sensors". The front sensors have nothing to do with the leveling system--they are part of the electronic adjustable suspension. Only way to find them cheap would be salvage--new they will be about $200 each.

    There are aftermarket shocks/struts, but only* the OEM are of the active variety. With standard type shocks/struts, those position sensors no longer serve any purpose**.

    * There are Monroe "specialty" shocks/struts that are quite pricey (but cheaper than OEM) and claim something like "original suspension parameters" but nobody seems sure if they are truly active.

    ** One of the rear position sensors does serve the rear air leveling system. Your original rear shocks are BOTH air leveling and electronically adjustable. Aftermarket rear shocks are available both with and without the air leveling, but again OEM seems to be the only way to get the real thing. Unfortunately the cost of new OEM shocks & struts on all four corners can exceed the book value of the car.

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    RippyPartsDept's Avatar
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    Re: 2000 STS suspension replasement....



    Front Sensors are in the $250 price range new (I can sell them for about $188 each)

    Rear Sensors are in the $230 range each (I can sell them for $169 each)
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    RippyPartsDept's Avatar
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    Re: 2000 STS suspension replasement....

    before you go any further though ...

    PULL THE CODES FROM THE DASH

    .... diagnose it yourself (with our help)

    if you don't know how to do it then go here: http://www.cadillacforums.com/forums...odes-dtcs.html

    everything you will need is in that thread - there's a reason that it's a sticky thread

    if you need some help or have questions come back here and post and we'll work you through it

    good luck
    Chris Heath (RippyPartsDept) is an ASE Certified GM Parts Consultant at Rippy Automotive
    Rippy is a Cadillac, Hummer, Saturn & Saab dealership & Official Saab Service Center
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  10. #9
    Tisch is offline Cadillac Owners Member
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    Re: 2000 STS suspension replasement....

    Check out the Monroe brand struts Part number 40021 and 40022. They claim to be the same as the OEM shocks with the electronic realtime dampening built in assuming that you have the F45 suspension setup and not F55. Amazon.com has them for $333.97 for the left side and $345.97 for the right side. So you could have both struts for the price of one of the A/C Delco brand. This is the setup that i am saving up for right now because i can't see paying close to $1,200 for for the Delco brand if these are the same struts that don't eliminate your CVRSS.

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    RippyPartsDept's Avatar
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    Re: 2000 STS suspension replasement....

    people... seems we are putting the cart before the horse

    we don't know what part that Dapp (the OP) needs... best we get the diagnosis down first before jumping to parts suggestions
    Chris Heath (RippyPartsDept) is an ASE Certified GM Parts Consultant at Rippy Automotive
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  12. #11
    Dapp is offline Cadillac Owners Member
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    Re: 2000 STS suspension replasement....

    So here are the codes
    RSS C0615 Current
    RSS C0620 Current
    Thanx for all the info guys. And the struts/shock arent broke but the car is a 2000 and 81k on it. I just thought it is probably about time to put some new ones in. The front one do sound a little creeky when I hit a speed bump but overall not to bad.

  13. #12
    Dapp is offline Cadillac Owners Member
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    Re: 2000 STS suspension replasement....

    ohh sorry here is the vin#1G6KY5498YU173926. Sorry again for my ignorance on this car but its my first caddy and I love this car. I just want to keep her in top running condition for as long as I can afford to.

  14. #13
    Mark C's Avatar
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    Re: 2000 STS suspension replasement....

    C0615 - Left Front Position Sensor Malfunction
    C0620 - Right Front Position Sensor Malfunction

    You can get these codes if the two sensors are disconnected (the links to the control arm off or missing) and the arms are not in relatively the same position, ie if one is high and one is low and neither of them is moving (since they ren't connected to anything) the controller can't tell which one is correct and it will fault both of them.

    Circuit Description
    The Continuously Variable Road Sensing Suspension (CVRSS) position sensor provides an analog voltage (0-5 volts) to the Electronic Suspension Control (ELC) module which represents the position between the body and the wheel. The Electronic Suspension Control (ELC) module provides the sensor with a 5.0 volt supply. The sensor is also grounded through the Electronic Suspension Control (ELC) module.

    Conditions for Running the DTC
    The Ignition is on.
    The fault is detected during three consecutive ignition cycles, or during the same ignition cycle after clearing the DTC with a scan tool.
    Conditions for Setting the DTC
    The DTC is set when the Electronic Suspension Control (ELC) module measures the position sensor signal voltage below 0.35 volts or above 4.75 volts for more than 1.0 second.

    Action Taken When the DTC Sets
    The Electronic Suspension Control (ELC) module will enter the Speed Dependent damping mode.
    Both Left and Right Normal Force outputs will be set to the default output states.
    The SERVICE RIDE CONTROL message will be displayed.
    Conditions for Clearing the MIL/DTC
    The scan tool can be used to clear the DTC.
    The On-Board diagnostic CLEAR RSS CODES feature can be used to clear the DTC.
    The DTC is saved as history when the Electronic Suspension Control (ELC) module no longer sees voltage outside the normal range. The DTC will clear if the fault does not return during 50 consecutive ignition cycles.
    Diagnostic Aids
    This fault condition may be set due to the CVRSS position sensor supply over-current fault. If this is the case, the position sensor supply over-current fault (C0696) must be diagnosed first.

    Test Description
    The number(s) below refer to the step number(s) on the diagnostic table.

    Tests for the proper operation of the circuit in the low voltage range.

    Tests for the proper operation of the circuit in the high voltage range. If the fuse in the jumper opens when you perform this test, the signal circuit is shorted to ground.

    Tests for a short to voltage in the 5 volt reference circuit.

    Tests for a high resistance or an open in the ground circuit.

    Step
    Action
    Value(s)
    Yes
    No

    1
    Did you perform the Road Sensing Suspension Diagnostic System Check?
    --
    Go to Step 2
    Go to Diagnostic System Check

    2
    Install a scan tool.
    Turn ON the ignition, with the engine OFF.
    With the scan tool, observe the LF Position Sensor data parameter in the Electronic Suspension Control (ELC) module data list.
    Does the scan tool indicate that the LF Position Sensor data parameter is within the specified range?
    0.35 - 4.75 V
    Go to Diagnostic Aids
    Go to Step 3

    3
    Turn OFF the ignition.
    Disconnect the LF Position sensor.
    Turn ON the ignition, with the engine OFF.
    With a scan tool, observe the LF Position Sensor data parameter.
    Does the scan tool indicate that the LF Position Sensor data parameter is less than the specified value?
    0.35 V
    Go to Step 4
    Go to Step 10

    4
    Turn OFF the ignition.
    Connect a 3 amp fused jumper wire between the 5 volt reference circuit of the LF Position Sensor and the signal circuit of the LF Position Sensor.
    Turn ON the ignition, with the engine OFF.
    With a scan tool, observe the LF Position Sensor data parameter.
    Does the scan tool indicate that the LF Position Sensor data parameter is greater than the specified value?
    4.75 V
    Go to Step 5
    Go to Step 8

    5
    Disconnect the fused jumper wire.
    Measure the voltage between the 5 volt reference circuit of the LF Position Sensor and the ground circuit of the LF Position Sensor.
    Does the voltage measure less than the specified value?
    5 V
    Go to Step 6
    Go to Step 7

    6
    Turn OFF the ignition.
    Disconnect the negative battery cable.
    Measure the resistance from the ground circuit of the LF Position Sensor to a good ground.
    Does the resistance measure less than the specified value?
    5 ohms
    Go to Step 12
    Go to Step 11

    7
    Test the 5 volt reference circuit of the LF Position Sensor for a short to voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

    Did you find and correct the condition?
    --
    Go to Step 16
    Go to Step 13

    8
    Test the 5 volt reference circuit of the LF Position Sensor for a short to ground, a high resistance, or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

    Did you find and correct the condition?
    --
    Go to Step 16
    Go to Step 9

    9
    Test the signal circuit of the LF Position Sensor for a short to ground, a high resistance, or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

    Did you find and correct the condition?
    --
    Go to Step 16
    Go to Step 13

    10
    Test the signal circuit of the LF Position Sensor for a short to voltage. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

    Did you find and correct the condition?
    --
    Go to Step 16
    Go to Step 13

    11
    Disconnect the Electronic Suspension Control (ELC) module.
    Test the ground circuit of the LF Position Sensor for a high resistance or an open. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.
    Did you find and correct the condition?
    --
    Go to Step 16
    Go to Step 13

    12
    Inspect for poor connections at the harness connector of the LF Position Sensor. Refer to Testing for Intermittent and Poor Connections and Connector Repairs in Wiring Systems.

    Did you find and correct the condition?
    --
    Go to Step 16
    Go to Step 14

    13
    Inspect for poor connections at the harness connector of the Electronic Suspension Control (ELC) module. Refer to Testing for Intermittent and Poor Connections and Connector Repairs in Wiring Systems.

    Did you find and correct the condition?
    --
    Go to Step 16
    Go to Step 15

    14
    Replace the LF Position Sensor. Refer to Front Position Sensor Replacement - Electronic Suspension .

    Did you complete the replacement?
    --
    Go to Step 16
    --

    15

    Important
    Perform the set up procedure for the Electronic Suspension Control (ELC) module .


    Replace the Electronic Suspension Control (ELC) module. Refer to Electronic Suspension Control Module Replacement .

    Did you complete the replacement?
    --
    Go to Step 16
    --

    16
    Use the scan tool in order to clear the DTCs.
    Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text.
    Does the DTC reset?
    --
    Go to Step 2
    System OK

  15. #14
    JimD is offline Cadillac Owners Connoisseur
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    Re: 2000 STS suspension replasement....

    Quote Originally Posted by Mark C View Post
    C0615 - Left Front Position Sensor Malfunction
    C0620 - Right Front Position Sensor Malfunction

    You can get these codes if the two sensors are disconnected (the links to the control arm off or missing) and the arms are not in relatively the same position, ie if one is high and one is low and neither of them is moving (since they ren't connected to anything) the controller can't tell which one is correct and it will fault both of them.
    I have to disagree with the "controller can't tell which one" part of the above. The codes are very specific about the "which one" part.

    To the original poster -- be 100% certain the connecting rods are properly attached on both sides. If your engine cradle has been lowered recently, whoever did the work "might not" know the suspension position sensor rods must be removed before the fact and installed after the fact.

  16. #15
    RippyPartsDept's Avatar
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    Re: 2000 STS suspension replasement....

    Mark C and JimD

    are you guys thinking that he needs new front sensors or is there more diagnosis to do here?
    Chris Heath (RippyPartsDept) is an ASE Certified GM Parts Consultant at Rippy Automotive
    Rippy is a Cadillac, Hummer, Saturn & Saab dealership & Official Saab Service Center
    ~~ Family owned and operated in Wilmington, NC since 1946 ~~
    We offer all forum members discounts on parts and freight
    phone: 800-RIPPY-22
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