OK, so if I'm picking up what you're laying down . . .
Here's the deal my jeep has done this since the day we bought it at auction. The speedo is off with stock gears an tires. It came from Canada and seems to of been converted to US standard in the dash panel. I have bought a procal to set it for the new tires and gear ratio but it did not fix the original problem. All wheel speed sensors are working properly. Up to 35 mph it is dead on per the GPS speedo I test with and my Garmin. At 40 it is actually 45. At 50 it is actually 58 at 60 it is at 70 at 65 im at almost 80.
Plus now my ABS is way over active. I have replaced the clock spring twice. The dealerships looks at me like i have a dick growing out of my forehead because i modified my jeep with a MOTECH conversion. I have worked thru this with them but cannot get a dealer to understand that it is still the same original problem i came from Canada with stock.
At 45 MPH, it's indicating 89% of GPS speed.Well, you could try to figure out what factory defect or KPH-MPH conversion error or other root cause is throwing it off . . .
At 58 MPH, it's indicating 86% of GPS speed.
At 70 MPH, it's indicating 86% of GPS speed.
At 80 MPH, it's indicating 81% of GPS speed.
OR. . . you could use a programmer to lie to your Jeep about your gears and/or tire size by about 85% and call it good
That bitch is lying to you, so return the favor instead of trying to figure out what's pissing her off.
PLEASE BUY AMERICAN SO I DON'T HAVE TO LEARN CHINESE
-The 4th little pig made his house of reinforced concrete, with wolfskin rugs in every room-
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