Alright guys, just got this 03 H2, and the front and rear speed sensor are reading differently? WTF?

SUPPOSEDLY according to the local Chev Dealer (No Hummer dealer in town), who says he with GM about it, Its because it has a 4Way ABS System, and the 24" Wheels/Tires can't be put on an H2 with that ABS System.

They've put a new EBCM in already which didn't fix it. The lights start coming on and freaking out at about 60mph.

Any ideas?

Thanks.

Kurtis

 

You need to measure the tire circumference of each tire. Sometimes even 1/4" of different tread depth can cause ABS speed sensor errors.

 

I don't know if that would make a difference, but keep in mind that tire sizes are like shoe sizes.