A friend has a 2004 Chevy Silverado and he put 36" tires on his truck but the under Speedometer tab the Gear/ Tire Size Calk is empty. Any ideas on how to address the larger tire size so the speedo is correct? Thanks for any help.
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A friend has a 2004 Chevy Silverado and he put 36" tires on his truck but the under Speedometer tab the Gear/ Tire Size Calk is empty. Any ideas on how to address the larger tire size so the speedo is correct? Thanks for any help.
The owner swears the truck is a 5 speed transmission but HP Tuners shows a 6 speed. Any help? It's definitely an Allison. Thank you.
I guess I was just being lazy. I found the tire rev per mile calculator and the trans rev per mile pulse calculator. Now going to flash the PCM and keep my fingers crossed. I will follow up this email with success or failure.
Get it fixed?
3 MPH off at 60 MPH. Will perform the roll out to get it perfect. No DTC's or faults codes so far. Thank you for inquiring CSTune!