Colorado Speedometer Correction - Chevy Colorado & GMC Canyon
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post #1 of 2 (permalink) Old 03-15-2017, 06:39 PM Thread Starter
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Colorado Speedometer Correction

I have a 2wd 2012 Colorado WT, 4 cylinder. I recently switched from the 215/70/R16 steel wheels to a 235/75/R16 tire. My speedometer is off quite a bit as the tire is 2" taller than stock.

I know one way to get the speedometer fixed is a tune but are there other options? I have read a lot of forums saying stay away from dealers. Also Hypertech and Jet Performance offer kits to simply correct the speedometer. However, since i have a 4 cylinder and these are less common, the salesman at both told me they had no products which would work with my vehicle.

I will add that i am confused why this jet kit will not work since it only hooks into the transmission and i believe my truck came with a 4L60-E Transmission factory. These are very common so i am surprised nothing is available.

JET Performance 50108: Accu-Speed Calibrator 1993-2006 Chevy/GMC Truck/SUV | JEGS

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post #2 of 2 (permalink) Old 03-15-2017, 08:53 PM
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Location: Colton, CA
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The JET calibrator only works on 2004-2006 Colorados. Find someone with hptuner or efilive software who can recalibrate the speedo or contact @supermodulation here on this forum

2011 Colorado CC Z71 2LT 4X4 3.7L with a few mods
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