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Blacklane's avatar
Blacklane
Explorer
Nov 30, 2014

Trans Temp Gauge Addition to 2003-2006 Chevy Clusters

If you're towing with a 2003-2006 Chevrolet truck such as the Silverado, Avalanche, Suburban, Tahoe, etc., you might notice the blank gauge spot at the lower left of the cluster.

This is for the transmission temperature gauge that is only installed in the premium trucks. However, GM left in the temperature sensor and the wiring, and the only part missing is the gauge itself.

There are several places around the specialize in GM cluster repairs who also will install the gauge. There is at least one ebay seller and Dr. Speedometer. There may be others. I think the cost is about $100US, but you have to call Dr. Speedometer to get that price. Normally, it's an add-on to a complete cluster refurbishment for about $200US.

The service works like this: you ship your cluster to them, they add the temperature gauge, and they ship it back. The whole process takes about a week and your truck is driveable without the cluster. Since your cluster gets re-installed, there is no programming required. It's just plug-and-play. Removing the cluster is simple: just pull straight back on the bezel to remove it. Then there are four (I think) screws holding the cluster in.

After a recent trip through the mountains pulling a trailer, I was sure I could smell my transmission burning. Now I'll have the peace-of-mind knowing the exact condition of my transmission.

7 Replies

  • My 2005 had the instrument in the cluster. On my 2011 it has to be selected to read the temp on the DIC.

    I monitor the temp with my Edge Insight CTS (TFT). The tranny on my 2011 runs about 20 to 25 deg cooler. Based upon the temps I have seen - even pulling the fifth wheel in the summer - no problems. I run TranSynd in the tranny (full synthetic fluid).

  • BurbMan wrote:
    Blacklane wrote:
    This is for the transmission temperature gauge that is only installed in the premium trucks.


    Not necessarily "premium"...any 2500 truck came with a trans temp gauge installed. No need to pay $$$ for retrofit, just go to a boneyard and get the dash cluster from a 2500 truck and you are good to go.


    My 2004 2500HD LT with tow package didn't come with the gauge -- just the dummy light. When I had to change the cluster due to some illumination problems and a bad speedometer I got one with the trans gauge.

    Bruce
  • Bob/Olallawa wrote:
    I don't think knowing exactly what the tranny temp is science since most gauges are at best maybe close. The computer controls all and will take care of a overheated trany fluid problem if in fact you ever get that high.


    My experience was that the on-board engine control dealt with the over-temp by reducing the power. I had the throttle floored, but the power kept going down while the coolant temperature went up, and I had nowhere to pull off. When I finally stopped, there was a strong smell of burning rubber that I think was my transmission.

    I really wished I had some advance warning of this whole problem. I have now added a transmission oil cooler and temperature gauge. Now I feel I can stop and know when it's safe to continue once the transmission is cool.
  • Blacklane wrote:
    This is for the transmission temperature gauge that is only installed in the premium trucks.


    Not necessarily "premium"...any 2500 truck came with a trans temp gauge installed. No need to pay $$$ for retrofit, just go to a boneyard and get the dash cluster from a 2500 truck and you are good to go.
  • Take care of as in shut you down. The GM trans gauge on my Allison is digital and pretty accurate. For towing I'd say it is very important.
  • I don't think knowing exactly what the tranny temp is science since most gauges are at best maybe close. The computer controls all and will take care of a overheated trany fluid problem if in fact you ever get that high.
  • My buddy put a new cluster in his 03 Silverado work truck 1500 with 300,000 miles on it, and it was from a 2500. We popped the new one in which was simple ,and it now reads his trans temp. We thought that was cool!