99-02 Speedometer Calibration?

[Matthew Jeschke]

FINALLY! I have a working speedometer and transmission temperature gauge. Only took about a hundred hours of trouble shooting and rebuilding, as well as several hundred dollars

My advice, if you have pre 2002 Tahoe, buy one and annotate your odometer. Don't try to make odometer right. Had I done that, it would have cost me $80 and about 5 minutes of work

 

[NoReverseYukon]

I figured it out and feel really stupid. Was up till midnight last night in frustration. I went and looked my donor cluster and my rebuilt cluster. One is 120MPH the other 100MPH speedo. I had switched the faces because the company that sold me the rebuilt one sent it with a cracked face. Turns out it was the scale on the speedometer itself that was off. I have to fix the crack in the rebuilt cluster and put the original face back with that circuit board.

You're not alone in this oversight. I just realized I was trying to do the same 100 to 120 swap. There has to be some way to re-calibrate to get an accurate speedometer.

 

[Rocket Man]

I figured it out and feel really stupid. Was up till midnight last night in frustration. I went and looked my donor cluster and my rebuilt cluster. One is 120MPH the other 100MPH speedo. I had switched the faces because the company that sold me the rebuilt one sent it with a cracked face. Turns out it was the scale on the speedometer itself that was off. I have to fix the crack in the rebuilt cluster and put the original face back with that circuit board.

Wow, that realization must have made you slap your forehead and say duh! So much work over a simple mistake. I’m glad I’m not the only one to do things like that.

 

[Matthew Jeschke]

Hahaha no kidding... I think most of my posts on here are a trstimate to stupid things I have done in my garage [emoji12]

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[Matthew Jeschke]

You're not alone in this oversight. I just realized I was trying to do the same 100 to 120 swap. There has to be some way to re-calibrate to get an accurate speedometer.

Yeah not sure it is the best but in the computer you can adjust the VSS calibration... however the computer will have the wrong speed while your dash has the correct. I think if you have the hardware / circuit board that came with the face then it should work without messing with the computer.

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[exp500]

Good work, tenacity and dedication overcomes stupidity if you can live through it!

 

[Matthew Jeschke]

Good work, tenacity and dedication overcomes stupidity if you can live through it!

haha thanks! Yeah I have learned a lot from making stupid mistakes. Was scare to even look at a wiring harness before this.

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