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2004 Z71 Speedo

Discussion in 'The Garage' started by Elevator Man, Jan 25, 2007.

  1. Elevator Man

    Elevator Man 1/2 ton status

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    The speedo in my '04 Z is peged out and does not work. It started by getting stuck in no certain place then it would start reading from where it was stuck or it might not work at all. If I put it and gear and hit the starter if will jump back 5 mph at a time till I get it to zero, it might work for 1 min. or 1 day. If it is working it is still accurate no matter what position it is in. Does anyone know where to start troubleshooting?
     
  2. 5280k5

    5280k5 1/2 ton status

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    It's a failed stepper motor for the speedo, do them all the time at work. I assume your asking 'cause your out of warranty? Unfortunately we have to either send the cluster out for repairs or exchange it for a repaired unit.
    Either way not real cheap:(
     
  3. Elevator Man

    Elevator Man 1/2 ton status

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    very out of warranty, where is that part located, and can you describe it a little to me? How much are we looking at? THANX
     
  4. 5280k5

    5280k5 1/2 ton status

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    The stepper motor is mounted inside the cluster, basically the needle attaches to it behind the face of the cluster. We've had a lot of problems with the gauges motors in alot of different cars/trucks and not just speedos, other gauges too. I could get you a more exact price tomorrow when I'm at work. Unfortunately if you go somewhere to send the cluster out for repairs you won't be getting my price but retail instead:doah:
     
  5. Elevator Man

    Elevator Man 1/2 ton status

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    Ballpark will be fine, its been like this for months. I don't have any problems with it i pretty much know how fast by the tach but when the little lady drives she gets a little overwhelmed :eek1:!!! There is a little bit of a clicking noise behind the cluster. I figured the problem was in there but I didn't know where to start, I don't even know where the sensor is on these new fanguled contraptions!!:crazy: preciate the help
     
  6. 5280k5

    5280k5 1/2 ton status

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    Some light reading for you.

    Document ID# 1622081
    2004 Chevrolet Chevy K Silverado - 4WD
    [​IMG] Subject:2003-2005 Chevrolet/GMC/Cadillac All Full Size Trucks and Utilities Programming IPC/Trip A or B Displayed/Clicking Noise From IPC/Gauge Needle Sticking - keywords cluster oil tach temp tick speedo #PIT3327E - (03/11/2005)


    Models:


    The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in the PI.
    <A href="http://service.gm.com/servlets/BlobShtml?ShtmlFile=1622081&psdid=437&evc=sm#ss1-1622081">Condition/Concern:

    Some customers may comment on a clicking noise coming from the I/P cluster or gauge needle sticking. Also reports of the DIC displaying Trip A or Trip B on 2003 or 2004 vehicles after an replacement IPC is installed.
    <A href="http://service.gm.com/servlets/BlobShtml?ShtmlFile=1622081&psdid=437&evc=sm#ss2-1622081">Recommendation/Instructions:

    Root cause appears to be the stepper motor in the cluster. Due to the magnitude of this concern, certain I/P clusters are now on backorder and the electronic service centers can not meet the demand for new/or remanufactured clusters. Enhancements have been made to the stepper motors and IP clusters. The supplier has made available a significant number of replacement clusters to address the back order condition. These clusters include improvements to internal rotors and a new motor design which will address concerns with noise and gages. The Electronic Service Centers (ESC) should be able to address dealer orders going forward as a result of better communication with the supplier. Until backorder situation is completely resolved, most replacement IPC clusters will be 2005 model year part numbers.
    New Calibration to service 2003 and 2004 MY vehicles with 2005 clusters.
    Attention: Very Important Note to dealership personnel:: Failure to follow these instructions could cause serious, irreparable damage to the new Instrument Panel Cluster part.
    If you are provided with a 2005 MY Instrument Panel Cluster part to install in a 2003 or 2004 MY full-size pickup or utility vehicle, a special procedure may be necessary to properly program the IPC with the correct software set.
    1. <LI type=1>The first step will be to read and record the IPC part number from the label on the back of the part. <LI type=1>Install the 2005 MY IPC hardware part in the vehicle. <LI type=1>Use the Tech 2 SPS application to "request info." from the vehicle. Verify the correct VIN is displayed for the vehicle, and follow the screen instructions to take the Tech 2 and connect it to the TIS (Techline PC) terminal. Note: Enhancements have been made to the SPS application in the TIS2000 version 3.0 that should eliminate the need for selecting an 8 digit GM IPC Hardware part number from the list. However, if the drop-down list is displayed, follow the instructions in Step 4 below.
    2. If during the IPC programming file selection procedure a drop down window is displayed, select the IPC 8 digit GM part number that was recorded from the IPC part label from the drop down list. This will ensure that the IPC module is programmed with the correct software file set for the 2005 MY IPC part in either a 2003 or 2004 MY vehicle. If the 8 digit GM part number that was recorded earlier from the IPC label is not available for selection in the pull down list, then you must call the Techline Customer Support Center for programming assistance to obtain the correct software set for the 2005 MY Instrument Panel Cluster part.
    Please follow this diagnosis process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.
    <A href="http://service.gm.com/servlets/BlobShtml?ShtmlFile=1622081&psdid=437&evc=sm#ss3-1622081">Models:

    (2003-2005 Chevrolet All Full Size Trucks and Utilities) and (2003-2005 GMC All Full Size Trucks and Utilities) and (2003-2005 Cadillac All Full Size Utilities)

    GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information.
    [​IMG] WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION



    © Copyright General Motors Corporation. All Rights Reserved.



    Document ID# 1622081
    2004 Chevrolet Chevy K Silverado 4WD You'll probably be looking at anywhere from $300-$350 for an exchange/repaired cluster. Keep in mind there will be some labor due to the fact it's necessary to program a new cluster to the vehicle using GM scan tool. Too bad you're not in Colorado or I could hook you up.
     
  7. Elevator Man

    Elevator Man 1/2 ton status

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    Man thanks for all the help. I believe, as we say here in AR let'r bump:haha: Now I know what I gotta do. I really thank you for all your help. If you ever get out this way bring the parts witcha and we'll fix the 'ol grocery getter, burn some steaks and guzzle some suds!!! :bow: :bow: :bow: :bow: :bow:
     
  8. 5280k5

    5280k5 1/2 ton status

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    No problem and Good luck:waytogo:
    Keep in mind if you get another cluster from another truck that works ok you'll might be able to get it programmed for a lot less than going the other route.
     

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