Odometer Troubles?

I own a small taxi company. I have a problem with the odometer on one of my cars, a 2002 C.V.P.I. Its odometer slips upward in mileage about fifty to one hundred miles after the car is put to rest at end of shift. This slippage is intermittent.

I keep a very tight log on all my vehicles. When I noticed this problem, I personally drove the particular car for several days, watching the main odometer like a hawk. There were no discrepencies while the car was running. The slippage was observed at the beginning of a new shift, usually six or seven hours after the car was parked for the calendar day.

For whatever good it did, I conducted a Car Fax data report to see if there was a history of odometer tampering. The report listed no incidents of odometer tampering. I am 100% positive that the car remained parked at the end of a day's use.

My questions are these: 1.) Can the interaction between the taxi meter and odometer cause such a problem? 2.) If there is odometer damage due to tampering is it detectable? 3.) Where should I go to fix the problem? and finally, 4.) Will there be any legal hassles in repairing a jimmied odometer, either for myself or for the dealership from where I bought the car?

I'd be much obliged for any kind of serious help.

Yours truly,
Greg from Chicago

how many miles were on the car when u bought it? and as far as you know is the place you got it from reputable

how many miles were on the car when u bought it? and as far as you know is the place you got it from reputable

There were 86,499 miles on the odometer when I put the car in service on February 14 this year. The mileage tracked correctly until 90,332 on July 5. I discovered the error the following day after the car had been standing still for eighteen hours. The odometer mysteriously jumped from 90,332 to 90,490!

Asia Motors in Chicago is a reputable dealer with recommendations from one or more on-line agencies.

it sounds like it is picking up voltage from somewhere to get it to keep registering.