1995 TR Odometer advancing on it's own ?

So, several years ago we had a 1995 TR in the shop for its engine out major. While it was here, the batteries were kept on a charger / tender. After the work was performed and the car was put back together again, detailed, we staged it for pick up by a transporter a day later.

Here is where is gets strange, the car only left the shop once and was driven on the " short route** " ( 3 miles ) to confirm repairs and check for leaks, etc. Then it sat in its spot , on a battery tender , until the transporter picked her up to go back to its owner. The same owner who called the day it was returned, yelling and screaming about how could we have put over 500 miles on it while in our possession?

There was a discussion and while I was 100% sure there was no way that happened , its hard to argue that the miles were indeed there. Cross checked BoL with our check in sheet, and the BoL when it was dropped off.
We came to an agreement and that was it.

I never figured it out. I know the car sat on a lift , I know it never left the building much less the property , I have video proof of that.

That is until recently , another 1995 TR , engine out service , full detail, parked on the service drive, battery tender attached, in plain view, and on camera.. this time for several weeks.

SAME thing , over roughly 500 +/- miles have accrued , and I KNOW this car has not been driven anywhere close to that ...

So, Rifledriver , other experts, what am I missing? Is this a well known issue that I just didn't realize till now? What if anything can be done to make sure it doesn't happen again?

Crazy!

Steve


** We do have a longer route that is approx. 10 miles , all depends on the work performed and client request.

 

I've reached out , no word back yet, but will update as the mystery progresses.

Has anyone else even seen this happen?

I can't be the only one to have 2 ,maybe I am just lucky.

S

 

Good point and easy to check!

As for the miles, it is not visably rolling to the eye, rather I know what the miles were a month ago , then when I went to drive the car, it was " 500 miles " higher and I know that it has not moved.

I am tracking it on a daily basis now, to see if I can catch the condition that it happens.

More to follow.

S