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Odo tampering via speed gear


Chapap

Well-Known Member
U.S. Military - Veteran
Joined
Jul 31, 2021
Messages
1,068
City
NW Florida
Vehicle Year
1994
Engine
2.3 (4 Cylinder)
Transmission
Manual
Total Drop
1.5” till I get these springs replaced
Tire Size
225-70-R14
Anyone ever heard of/ worried about the accuracy of the odometer because the speed is off? I guess a difference of 10% really doesn't change value all that much... But someone could be playing the long con and change out the driven gear so it shows fewer miles when they sell.
 
Anyone with larger diameter tires does that, lol
 
Do newer vehicles even use a 'speed gear' anymore? I would have to think the vehicle's robots handle speed and odometer readings, at this point.
 
Anyone ever heard of/ worried about the accuracy of the odometer because the speed is off? I guess a difference of 10% really doesn't change value all that much... But someone could be playing the long con and change out the driven gear so it shows fewer miles when they sell.
That was a thing back in the 80's.
 
I just had the thought after getting this new 96 Ram. Speedo reads a constant 4mph fast. Granted that’s the wrong way for adding value, but it’ll make a not unsubstantial difference on the odo eventually.
 
It’s far easier to tamper with it by pulling the gauge cluster, but yeah, if it’s not adjusted right, it will eventually make a difference
 
It would take forever with wrong size tires or speedometer calibration to affect the shown milage. It would be easier to just unhook the speedometer for a few years. I think its more critical how a vehicle was maintained rather than “milage shown”.
 
I had an 86 Cutlass Ciera that the miles would back off if you put in reverse and backed up a Ling way. That way is much faster than wrong size tires and still slower and more tedious than taking the dash apart and manually setting it. Nowadays, the odo is stored in at least 3 different electronics, the cluster, the pcm and probably another unheard of module, and they all have to match and need computer access to program them

AJ
 
Realistically 10% for 200,000 is only 20,000 miles.

At that point how much of an effect does that really have on resale value?
Maybe more than traditionally, with vehicle price’s what they are now, the insurance company correcting the odometer of my red 92 made a huge difference in value. They originally had it at like 270k (I’m too lazy to go look right now), but it really had like 170k, which because suddenly they had nothing to compare it to, it went to book value not fair market which was a $1,700 difference
 
When I bought my ‘94 the kid I bought it from told the dmv it had 4-hundred thousand some miles, I knew it couldn’t have that much but let it go, since I was about to go through a divorce at that time & that kind of milage would make it worth absolutely nothing. About a year later I found a old registration behind the glove box dated a few months before I bought it, showing 139K & change. Cool, cause I thought maybe rhe truck could of had 240K when I bought it. I just knew it wasnt 400K. Id still like to show that kid what all Ive done to this ranger since Ive had it.
 
Mine was off when I bought it. The concern was getting a ticket. I had to drive at 60mph and it would be going near 70.
 
I’m not say mileage doesn’t make a difference, but I would think 10 or 20 thousand wouldn’t have much of an effect.

I'd be way more likely to buy a vehicle with 180k rather than one with 200k on it.
 
I'd be way more likely to buy a vehicle with 180k rather than one with 200k on it.


How much more would you be willing to pay?



For me that like a year or a year or a half of driving. On a 15/ 20 year old truck ( most trucks with those kind of miles are going to be around there anyway.) that means almost nothing.....
 

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